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Thread: dSLR thread

  1. #3801
    I can't believe I'm a Fixture LunarMist's Avatar
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    So you must have 3 dongles hanging from the unit? USB-C has not replaced USB-A by a long shot.
    --Lunar

  2. #3802
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    Quote Originally Posted by LunarMist View Post
    So you must have 3 dongles hanging from the unit? USB-C has not replaced USB-A by a long shot.
    I think you are posting in the wrong thread.

  3. #3803
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    It's always something...
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  4. #3804
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    The latest Nikon patents: 400mm, 500mm and 600mm f/5.6 Phase Fresnel (PF) lenses.

    Phase Fresnel or Diffractive Optics in Canon speak.

    Canon's 400/5.6 has been the poor mans wildlife tele for ages but it's dated and has no IS. It needs an update. Nikon doesn't even have a 400/5.6 prime. The D500 is an excellent wildlife camera and some decent f/5.6 tele primes will give it another boost over the Canon 7d2 (and eventual 7d3).

    If these lenses are priced reasonably they will be huge winners. The Nikkor 200-500 f/5.6 zoom is only $1400. Very decent lens, regardless of price, but slow AF and less weather resistant as compared to the exotic teles. I don't see a $5000+ 500/5.6PF or $7000+ 600/5.6PF (even with FAST AF and weather sealing) selling when optically* they won't be that much better than the 200-500.

    Nikon should be aggressive and price these lenses at $2000/3200/4500.

    Knowing Nikon the price will be astronomical ($3500/5000/7000) and the advanced amateurs will be left out in the cold.




    *the edge/corner regions will be a lot sharper than the zoom but the center will be really close and that's the really important part for the advanced amateur wildlife shooter.
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  5. #3805
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    Quote Originally Posted by snowhiker View Post
    The latest Nikon patents: 400mm, 500mm and 600mm f/5.6 Phase Fresnel (PF) lenses.

    Phase Fresnel or Diffractive Optics in Canon speak.

    Canon's 400/5.6 has been the poor mans wildlife tele for ages but it's dated and has no IS. It needs an update. Nikon doesn't even have a 400/5.6 prime. The D500 is an excellent wildlife camera and some decent f/5.6 tele primes will give it another boost over the Canon 7d2 (and eventual 7d3).

    If these lenses are priced reasonably they will be huge winners. The Nikkor 200-500 f/5.6 zoom is only $1400. Very decent lens, regardless of price, but slow AF and less weather resistant as compared to the exotic teles. I don't see a $5000+ 500/5.6PF or $7000+ 600/5.6PF (even with FAST AF and weather sealing) selling when optically* they won't be that much better than the 200-500.

    Nikon should be aggressive and price these lenses at $2000/3200/4500.

    Knowing Nikon the price will be astronomical ($3500/5000/7000) and the advanced amateurs will be left out in the cold.


    *the edge/corner regions will be a lot sharper than the zoom but the center will be really close and that's the really important part for the advanced amateur wildlife shooter.

    The 500/5.6 is probably the most useful lens, but really there should be DO zooms by now. The 200-500 is not sharp at 500.
    --Lunar

  6. #3806
    Storage? I am Storage! Tannin's Avatar
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    Not a snowball's chance in hell that these new DO lenses from Nikon will be cheap. There is no such thing as a cheap DO lens. Maybe there will be one day. Don't hold your breath.
    It's only crap after it fails. Until then it is the performance deal of the moment. - Dave

  7. #3807
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    Quote Originally Posted by Tannin View Post
    Not a snowball's chance in hell that these new DO lenses from Nikon will be cheap. There is no such thing as a cheap DO lens. Maybe there will be one day. Don't hold your breath.
    The newer Canon lenses like the 400/4 II DO place the DO group further in the lens, so it is of a smaller diameter. Of course that means less weight savings in the front groups, but still providing some size/length savings from the low telephoto ratio.
    --Lunar

  8. #3808
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    Quote Originally Posted by Tannin View Post
    Not a snowball's chance in hell that these new DO lenses from Nikon will be cheap. There is no such thing as a cheap DO lens. Maybe there will be one day. Don't hold your breath.
    Certainly the 500 & 600mm f/5.6 PF lenses will be cheaper than the ($10,300 & $12,300) f/4 super-telephoto Nikkors. And what will be the price premium of the 400mm f/5.6 PF over the current ($2000) 300mm f/4 PF tele?

    I see the 300/4 vs 400/5.6 being nearly a wash. Front elements being almost exactly the same size. One a bit longer but a stop slower. If the 400/5.6 is over $3000 Nikon will kill sales as the 300/4 PF + 1.4xTC has pretty decent IQ and only $2500. As an aside, a bunch of people on the fredmiranda forums really wanted a 400/4 PF instead of the 400/5.6 PF.

    For the pro sports/action/wildlife shooter f/4 is worth paying a huge premium. So the million dollar question is how high/low can Nikon price the f/5.6 PF lenses without killing the advanced amateur demand and/or cannibalizing the premium high-end segment?

    Quote Originally Posted by snowhiker View Post
    Nikon should be aggressive and price these lenses at $2000/3200/4500.
    Wishful thinking but I stand by these aggressive prices. Nikon would probably sell three to four $4500 600/5.6 PF lenses for every $12,300 600/4 lens.
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  9. #3809
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    It makes zero sense to compare a little f/5.6 lens to an f/4 unit. It's like saying that the new Ford family car is going to be cheaper than a Kenworth prime mover. Well duh.

    And what is the point of a 400/5.6 DO anyway? It's not as if you can't hold a 400/5.6 comfortably in one hand already. I don't mind having extra choices - who ever does? - but it seems like a very strange product to bring to market when there are so many much more useful alternatives.

    Frankly, you'd have to be a bit dim to pay $4500 US for a 600/5.6. Then again, people often are a bit dim - look at all those fools lining up to pay pretty good money for bulky, heavy, clumsy, under-performers like the Sigma and Tamron "600"mm f/6.3 zooms when for about the same money they could have a superb little 100-400 Mark II which outperforms the big black uglies even after cropping to equivalent focal length, or for a bit more money they could get a huge power and quality quantum leap with a second-hand pro lens like a 500/4 IS? (Yes, I've used a Sigma 150-600, and been impressed mainly by how incredibly awkward and bulky it is.)
    It's only crap after it fails. Until then it is the performance deal of the moment. - Dave

  10. #3810
    I can't believe I'm a Fixture LunarMist's Avatar
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    For all we know there will be no such lenses. Many patents are preemptive strikes.
    --Lunar

  11. #3811
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    Quote Originally Posted by Tannin View Post
    Not a snowball's chance in hell that these new DO lenses from Nikon will be cheap. There is no such thing as a cheap DO lens. Maybe there will be one day. Don't hold your breath.
    Quote Originally Posted by Tannin View Post
    It makes zero sense to compare a little f/5.6 lens to an f/4 unit. It's like saying that the new Ford family car is going to be cheaper than a Kenworth prime mover. Well duh.
    I was only comparing the f/5.6 PF (DO) teles to the f/4 PF lenses as a counter to you saying they won't be cheap. The f/5.6 teles won't be as expensive as the f/4 teles. Maybe not "cheap" but certainly less expensive.

    Quote Originally Posted by Tannin View Post
    And what is the point of a 400/5.6 DO anyway? It's not as if you can't hold a 400/5.6 comfortably in one hand already. I don't mind having extra choices - who ever does? - but it seems like a very strange product to bring to market when there are so many much more useful alternatives.
    The Nikkor 300mm f/4 PF is a compact lens with good IQ. A 400 f/5.6 PF lens would be a just a bit bigger. I think the slightly smaller size of a PF lens (compared to conventional lens) + "marketing bonus" of the PF/DO buzzwords = a few extra sales. ASSUMING Nikon doesn't go overboard with the price.

    Quote Originally Posted by Tannin View Post
    Frankly, you'd have to be a bit dim to pay $4500 US for a 600/5.6. Then again, people often are a bit dim - look at all those fools lining up to pay pretty good money for bulky, heavy, clumsy, under-performers like the Sigma and Tamron "600"mm f/6.3 zooms when for about the same money they could have a superb little 100-400 Mark II which outperforms the big black uglies even after cropping to equivalent focal length, or for a bit more money they could get a huge power and quality quantum leap with a second-hand pro lens like a 500/4 IS? (Yes, I've used a Sigma 150-600, and been impressed mainly by how incredibly awkward and bulky it is.)
    Certainly a 600mm prime lens would have higher IQ than any zoom from Sigma, Tamrom, Nikon, and even Canon. Nikon (or Canon for that matter) certainly can't price a 600mm lens cheap no matter the quality. If a 600mm f/5.6 PF lens has nearly the same IQ as the f/4 big-boy lens then $4500 would be a fair price. $4500 is about 36.5% of the f/4's $12,300 price. How much is one stop of light worth?

    Nikon already has a budget 500mm f/5.6 lens. It's the $1400, 200-500mm f/5.6 zoom. Sure the IQ drops from 400-500mm but it is still a fantastically good price/performance ratio of a lens. This lens is not Canon 100-400 quality but close enough and $650 cheaper.

    Nikon also has amazing 500mm and 600mm f/4 super teles at $10,300 and $12,300 price points.

    Nikon needs something in the middle. High IQ, f/5.6 teles, at decent prices would fit the bill nicely. Nikon needs to do all it can to create good will and market share with Canon above and Sony below. Aggressively priced f/5.6 super teles with amazing IQ would go a long way.
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  12. #3812
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    /rant

    Nikon needs to update their wide/ultra-wide zooms ASAP. Especially now that the 45mp D850 is available and selling like crazy.

    Nikon's 14-24 f/2.8 is 10+ years old.
    Nikon's 17-35 f/2.8 is 17+ years old.
    Nikon's 16-35 f/4 is 7+ years old and sux compared to Canon 16-35 f/4. Personally I regret not spending the extra $800 for the 14-24 vs the 16-35 I bought.

    Nikon's 24-70 and 70-200 f/2.8 pro-zooms have been updated to "E" versions. 8-15 (fisheye), 19 (TSE), 28, 105, 180-400, 200-500, 300 PF, 400, 500, 600, 800mm lens also have "E" versions. The pro-level 200 f/2 and 300 f/2.8 have patents and are already/probably being designed right now. So what's missing?

    Sigma's 12-24 f/4 exist.
    Sigma's 14-24 f/2.8 <--- new lens.
    Tamron's 15-30 f/2.8 exist.
    Canon 11-24 f/4 exist.
    Canon 16-35 f/2.8 exist.
    Canon 16-35 f/4 exist.

    No doubt that the Nikkor 14-24mm f/2.8 has aged well but when the above six lenses exist AND the new 45mp D850 exist Nikon really needs to come out with budget and pro level wide/ultra-wide zooms that have amazing IQ. Nikon needs to regain the ultra wide zoom/landscape crown. <hint> 10-24mm f/4, 12-24mm f/2.8, and 16-35mm f/4 <hint>

    /end rant
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  13. #3813
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    Quote Originally Posted by snowhiker View Post
    /rant

    Nikon needs to update their wide/ultra-wide zooms ASAP. Especially now that the 45mp D850 is available and selling like crazy.

    Nikon's 14-24 f/2.8 is 10+ years old.
    Nikon's 17-35 f/2.8 is 17+ years old.
    Nikon's 16-35 f/4 is 7+ years old and sux compared to Canon 16-35 f/4. Personally I regret not spending the extra $800 for the 14-24 vs the 16-35 I bought.

    Nikon's 24-70 and 70-200 f/2.8 pro-zooms have been updated to "E" versions. 8-15 (fisheye), 19 (TSE), 28, 105, 180-400, 200-500, 300 PF, 400, 500, 600, 800mm lens also have "E" versions. The pro-level 200 f/2 and 300 f/2.8 have patents and are already/probably being designed right now. So what's missing?

    Sigma's 12-24 f/4 exist.
    Sigma's 14-24 f/2.8 <--- new lens.
    Tamron's 15-30 f/2.8 exist.
    Canon 11-24 f/4 exist.
    Canon 16-35 f/2.8 exist.
    Canon 16-35 f/4 exist.

    No doubt that the Nikkor 14-24mm f/2.8 has aged well but when the above six lenses exist AND the new 45mp D850 exist Nikon really needs to come out with budget and pro level wide/ultra-wide zooms that have amazing IQ. Nikon needs to regain the ultra wide zoom/landscape crown. <hint> 10-24mm f/4, 12-24mm f/2.8, and 16-35mm f/4 <hint>

    /end rant
    I don't think there will much effort on better DX wide lenses since the market has gone to FX, but they should update the 16-35/4. Whether they make a 16-35/2.8 IDK.
    --Lunar

  14. #3814
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    Quote Originally Posted by LunarMist View Post
    I don't think there will much effort on better DX wide lenses since the market has gone to FX, but they should update the 16-35/4. Whether they make a 16-35/2.8 IDK.
    Agree about DX being dead. Nikon should put out pro quality 16, 24, 35, 56mm f/1.4 DX lenses. And 8-16, 16-50, 50-150mm f/2.8 zooms for DX to revitalize the market as Thom has been talking about for a while now.

    Now referring to my post above yours: All the Nikkor lenses I listed are FX. The other listed OEM lenses are FX. Nikon needs new wide zooms for FX pronto. ASAP. NOW. Yesterday. Wide/Ultra-wide zooms NOW Nikon. Thank You. All those new D850 owners are waiting.
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  15. #3815
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    Quote Originally Posted by snowhiker View Post
    Agree about DX being dead. Nikon should put out pro quality 16, 24, 35, 56mm f/1.4 DX lenses. And 8-16, 16-50, 50-150mm f/2.8 zooms for DX to revitalize the market as Thom has been talking about for a while now.

    Now referring to my post above yours: All the Nikkor lenses I listed are FX. The other listed OEM lenses are FX. Nikon needs new wide zooms for FX pronto. ASAP. NOW. Yesterday. Wide/Ultra-wide zooms NOW Nikon. Thank You. All those new D850 owners are waiting.
    There are plenty of options in fast Nikkors now and also Sigma or Zeiss for a few particular purposes. What exactly are you doing that is limited by lens choices for Nikon?
    --Lunar

  16. #3816
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    Quote Originally Posted by LunarMist View Post
    There are plenty of options in fast Nikkors now and also Sigma or Zeiss for a few particular purposes. What exactly are you doing that is limited by lens choices for Nikon?
    Plenty of fast and NEW options from third party OEMs but nothing new from Nikon in 10+ years. With the D850 and it's 45 MP well suited for landscape work Nikon really needs to capitalize on its runaway success (of D850) and put out some new/high-IQ wide/ultra-wide zooms. Recapture its landscape supremacy.

    Nothing I'm doing will ever be limited by my equipment. I'm nowhere good enough. I'd just like to see Nikon succeed and stay ahead of Sony.
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  17. #3817
    I can't believe I'm a Fixture LunarMist's Avatar
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    Nikon has produced several new wide and normal lenses recently. The 58/1.4, 19/4 PCE, 35/1.4, 24/1.4, etc. are all less than ten years old. The 28/1.4 is less than a year old.
    I suggest getting the 24 and 19 PCE lenses for wide landscapes.
    --Lunar

  18. #3818
    I can't believe I'm a Fixture LunarMist's Avatar
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    My aperture is stuck open.
    --Lunar

  19. #3819
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    Which one? Your mouth?

  20. #3820
    I can't believe I'm a Fixture LunarMist's Avatar
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    Better than the other end. No, it's a Nikkor.
    .
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  21. #3821
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    Quote Originally Posted by LunarMist View Post
    Better than the other end. No, it's a Nikkor.
    .
    --Lunar

  22. #3822
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    Quote Originally Posted by LunarMist View Post
    My aperture is stuck open.
    New or old lens?

    The new Sigma Art 14-24mm f/2.8 will cost $1299. $200 cheaper than the early speculation of $1500. The $1300 price is more realistic and gives a $600 separation between the Nikkor and Sigma lens.

    Hopefully it will test extremely well to put some pressure on Nikon to upgrade their 14-24.
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  23. #3823
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    80-200/2.8. Somehow I made two postings.

    Tamron has a new 70-210/4 VC and Samyang has a 50/1.2, etc. The issue I have with all the 3rd party lenses is that the brand name software doesn't recognize it for making any lens corrections.
    --Lunar

  24. #3824
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    Sweet jesus Sigma is pumping out lenses. Now Sigma has a 105mm f/1.4 art and 70mm f/2.8 macro art coming out soon. The 105 is huge. 105mm filter diameter and a tripod foot!
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    - Nikon D610 w/grip, 50mm/1.4G, 16-35mm/4G, 105mm/2.8G micro, 200-500mm/5.6E.

  25. #3825
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    Quote Originally Posted by snowhiker View Post
    Sweet jesus Sigma is pumping out lenses. Now Sigma has a 105mm f/1.4 art and 70mm f/2.8 macro art coming out soon. The 105 is huge. 105mm filter diameter and a tripod foot!
    Fortunately the 105/1.4 will be available in Sony E-mount, because the Sony a7 series cameras are so great for small/lightweight uses.
    --Lunar

  26. #3826
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    I do like the extending front groups on the macro. That should allow a longer distance from the subject since the focal length decreases less at high magnification than in the IF lenses.
    --Lunar

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    AF Fine Tune on Nikon D610 w/200-500mm f/5.6E lens @500mm near MFD

    I'm trying to adjusting the AF Fine Tuning with my 200-500mm lens. Lens zoomed in to 500mm with focus set near the minimum focus distance of just under 8 feet. This is where I want to use the lens most to capture hummingbirds.

    Exposure 1/200 @ f/5.6 @ ISO 1600. I'm using the test chart from this blog. I'm using single AF point mode with the AF box centered around the "ch" on the chart so all my pics would be the same.

    First pic is default AF-FT adjustment of (0). Second is set at extreme value of (-20).

    I'm seeing some back-focus, but a -20 correction get things pretty close. I wonder if I'm doing something wrong as there doesn't seem like a lot of change going from from 0 to -20.



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  28. #3828
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    Quote Originally Posted by snowhiker View Post
    I'm trying to adjusting the AF Fine Tuning with my 200-500mm lens. Lens zoomed in to 500mm with focus set near the minimum focus distance of just under 8 feet. This is where I want to use the lens most to capture hummingbirds.

    Exposure 1/200 @ f/5.6 @ ISO 1600. I'm using the test chart from this blog. I'm using single AF point mode with the AF box centered around the "ch" on the chart so all my pics would be the same.

    First pic is default AF-FT adjustment of (0). Second is set at extreme value of (-20).

    I'm seeing some back-focus, but a -20 correction get things pretty close. I wonder if I'm doing something wrong as there doesn't seem like a lot of change going from from 0 to -20.
    There is quite a bit of difference, but -20 is not good to use if you need -25. Do your other lens backfocus that much and have you tested the lens at a bit longer distances?

    I'm not seeing that you are focusing on a perpendicular target, so there may be AF errors from the angle.
    A line of sight perpendicular system is a better option, i.e., LensAlign II.
    I have the older, nicer version which was a rather expensive and somewhat hand built device. The II is a bit finicky to use, but as accurate as you can get since the line of sight ensures a truly perpendicular axis.
    --Lunar

  29. #3829
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    Quote Originally Posted by LunarMist View Post
    There is quite a bit of difference, but -20 is not good to use if you need -25. Do your other lens backfocus that much and have you tested the lens at a bit longer distances?

    I'm not seeing that you are focusing on a perpendicular target, so there may be AF errors from the angle.
    A line of sight perpendicular system is a better option, i.e., LensAlign II.
    I have the older, nicer version which was a rather expensive and somewhat hand built device. The II is a bit finicky to use, but as accurate as you can get since the line of sight ensures a truly perpendicular axis.
    I haven't tested my other lenses yet, as only the 200-500 has given my less than stellar results. Pics just seemed a bit soft. I just thought that going from 0 to -20 would see a bigger swing in focus. But perhaps not. I'll try re-shooting the test tomorrow in bright daylight so I can get the ISO down and use a faster shutter speed. I'll also double check alignment to make sure everything is squared up.

    For Nikons the "default" value is an AF-Fine Tune adjustment added to all lenses, while the "saved" value is for a particular lens. Will a default value of -5 be added to a saved value of -20 to yield a final correction of -25? Or will just the "saved" value of -20 be used?
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  30. #3830
    I can't believe I'm a Fixture LunarMist's Avatar
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    Quote Originally Posted by snowhiker View Post
    I haven't tested my other lenses yet, as only the 200-500 has given my less than stellar results. Pics just seemed a bit soft. I just thought that going from 0 to -20 would see a bigger swing in focus. But perhaps not. I'll try re-shooting the test tomorrow in bright daylight so I can get the ISO down and use a faster shutter speed. I'll also double check alignment to make sure everything is squared up.

    For Nikons the "default" value is an AF-Fine Tune adjustment added to all lenses, while the "saved" value is for a particular lens. Will a default value of -5 be added to a saved value of -20 to yield a final correction of -25? Or will just the "saved" value of -20 be used?
    I don't recall of they are additive or exclusive. If only that lens is way off and similar at longer distances I'd suggest sending it in for service.
    The 200-500 is not very sharp at 500mm from the test charts and your copy may be worse than some.
    Don't you need to set the AF MFT at both ends of the zoom range?
    --Lunar

  31. #3831
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    Quote Originally Posted by LunarMist View Post
    I don't recall of they are additive or exclusive. If only that lens is way off and similar at longer distances I'd suggest sending it in for service.
    The 200-500 is not very sharp at 500mm from the test charts and your copy may be worse than some.
    Don't you need to set the AF MFT at both ends of the zoom range?
    A quick Google says they are exclusive but still not certain. The camera only stores one correction per lens so I would think you'd want to Fine Tune the lens at the setting you'll be using. For me that would be 500mm near the minimum focus distance. I should check 400mm as well as the lens is sharper at 400mm vs 500mm. Might be worth it to just shoot at 400mm and crop.

    I hate sending things in for "service" as I usually get some crap refurb in return and/or the original item in even worse shape. If I can get everything dialed in with just the AF MFT that would be best.
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  32. #3832
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    CP+ 2018: First Look - Sony 400mm F2.8 G Master lens. Sony getting some serious glass. Finally.

    CP+ 2018: Hands-on with Tokina's 50mm F1.4. Sigma, Tamron and now Tokina have updated their "normal" lenses. Canon and Nikon? <crickets>

    CP+ 2018: Hands-on with Sigma 105mm F1.4. Goddamn that Sigma 105mm f/1.4 is freakin HUGE.
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    - Nikon D610 w/grip, 50mm/1.4G, 16-35mm/4G, 105mm/2.8G micro, 200-500mm/5.6E.

  33. #3833
    I can't believe I'm a Fixture LunarMist's Avatar
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    You are really stuck on the size, eh?
    I think it is for the wide open users and probably optimizes the design performance vs. cost.
    I'd take the Nikkor any day of the month.
    --Lunar

  34. #3834
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    I redid all my lens AF Manual Fine Tune tests. I used a piece of string to align the central axis of the lens to the center of the chart and confirm axis was perpendicular to the center of the test chart.

    Good news is that -20 is way off so my lens/camera are not totally out of adjustment. Looks like -8 is the correct value.

    Of course now I'm wondering if my central AF point is just not truly in the center of the frame. I need to test that too I guess.
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    - Nikon D610 w/grip, 50mm/1.4G, 16-35mm/4G, 105mm/2.8G micro, 200-500mm/5.6E.

  35. #3835
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    Quote Originally Posted by LunarMist View Post
    You are really stuck on the size, eh?
    That's what she said.

    Quote Originally Posted by LunarMist View Post
    I think it is for the wide open users and probably optimizes the design performance vs. cost.
    I'd take the Nikkor any day of the month.
    Nikkor 105mm f/1.4 = 82mm filter diameter.
    Sigma 105mm f/1.4 = 105mm filter diameter.

    It will be interesting to see how they compare wide open. You would think the vignetting would be less on the Sigma and maybe better bokeh?

    The Sigma will probably be as sharp or sharper than the Nikkor but Sigma's AF performance is all over the place, from good to utter crap. And the Sigma Art lenses have poor/no weather resistance, but they are cheaper.
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  36. #3836
    I can't believe I'm a Fixture LunarMist's Avatar
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    Quote Originally Posted by snowhiker View Post
    I redid all my lens AF Manual Fine Tune tests. I used a piece of string to align the central axis of the lens to the center of the chart and confirm axis was perpendicular to the center of the test chart.

    Good news is that -20 is way off so my lens/camera are not totally out of adjustment. Looks like -8 is the correct value.

    Of course now I'm wondering if my central AF point is just not truly in the center of the frame. I need to test that too I guess.
    If the lens axis is perpendicular to the target it shouldn't matter. The most important part is to confirm that the calibration works under conditions of use.

    It probably won't matter much on an f/5.6 lens, but many lenses suffer to some degree from focus shift from wide open to stopped down. That may be different throughout the zoom range or even change with focusing distance.
    --Lunar

  37. #3837
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    Quote Originally Posted by LunarMist View Post
    If the lens axis is perpendicular to the target it shouldn't matter. The most important part is to confirm that the calibration works under conditions of use.

    It probably won't matter much on an f/5.6 lens, but many lenses suffer to some degree from focus shift from wide open to stopped down. That may be different throughout the zoom range or even change with focusing distance.
    I will test the calibration results to confirm "calibration" matches "reality."

    I'll always be shooting at f/5.6. Almost always at 400-500mm. And almost always near the minimum focus distance. At least for now. Those are the conditions with which I ran the calibration tests.
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    - Nikon D610 w/grip, 50mm/1.4G, 16-35mm/4G, 105mm/2.8G micro, 200-500mm/5.6E.

  38. #3838
    I can't believe I'm a Fixture LunarMist's Avatar
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    Recent firmware is killing Sigma on Nikon compatibility. I guess this has been an ongoing problem, but is resurfacing.
    --Lunar

  39. #3839
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    Looks like, maybe, possibly, a new 600mm f/5.6E PF (DO) lens is in the works.
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    - Nikon D610 w/grip, 50mm/1.4G, 16-35mm/4G, 105mm/2.8G micro, 200-500mm/5.6E.

  40. #3840
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    Will it really be that much lighter than a 500/4?
    --Lunar

  41. #3841
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    Quote Originally Posted by LunarMist View Post
    Will it really be that much lighter than a 500/4?
    I think the lower cost will be the main attraction for a 600/5.6 lens. It has to be less then the $12.4k 600/4.
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    - Nikon D610 w/grip, 50mm/1.4G, 16-35mm/4G, 105mm/2.8G micro, 200-500mm/5.6E.

  42. #3842
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    Quote Originally Posted by snowhiker View Post
    I think the lower cost will be the main attraction for a 600/5.6 lens. It has to be less then the $12.4k 600/4.
    Maybe it will only cost $5000-7000, unless the optics are mediocre like the 200-500. However, the crappier the optics the less people will pay.
    In any case, f/5.6 seriously limits use in low light and with teleconverters. Pros would prefer the f/4 and most everyone else would be fine with a 150-600/6.3 or 200-500/5.6.
    --Lunar

  43. #3843
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    Quote Originally Posted by LunarMist View Post
    In any case, f/5.6 seriously limits use in low light and with teleconverters. Pros would prefer the f/4 and most everyone else would be fine with a 150-600/6.3 or 200-500/5.6.
    Pro's, and rich amateurs can afford a $12k f/4 lens. Regular folks have the $1-2k 150-600/6.3 and 200-500/5.6 zooms. A 600/5.6 PRIME will be sharper, have faster AF, and have better build quality but will be a half step below for f/4. Center sharpness will be almost the same as the f/4 with corners being a bit off I'd guess.

    Pair the lens with a D500 for extra "reach."

    A nice middle ground for advanced amateurs and semi-pros. Hopefully less then $5k. I'm guessing $5500-7000.

    A nice article on a Nikon glass factory.
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    - Nikon D610 w/grip, 50mm/1.4G, 16-35mm/4G, 105mm/2.8G micro, 200-500mm/5.6E.

  44. #3844
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    Regular folk don't buy $1-2k lenses either. Regular folk use their camera phones. Even most of the "regular folk" who buy a DSLR don't buy any other lenses beyond the kit lens(es) that comes with it.

  45. #3845
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    Yes, we are doomed by Uncle Bob, etc. I will probably be completely dead by the time there are no cameras that accept 500mm lenses.
    --Lunar

  46. #3846
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    The 100-400 II is as rich as I'm willing to get. And even that I am not taking on international flights.
    Work1: i7-8700K@5.1Ghz, 64GB, 512GB 960 Pro, 1080ti
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  47. #3847
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    Quote Originally Posted by ddrueding View Post
    The 100-400 II is as rich as I'm willing to get. And even that I am not taking on international flights.
    Usually I take two of those internationally. Once I took only one 100-400 II, but also a 200-400/4 and 500/4.
    --Lunar

  48. #3848
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    I see there is a new 70-200/4 IS EF lens. I could have used it this week. My current lens is due for disposal anyway.
    --Lunar

  49. #3849
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    Quote Originally Posted by LunarMist View Post
    My current lens is due for disposal anyway.
    Send it to me and I'll properly discard it for you.

  50. #3850
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    You and the airline.
    --Lunar

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