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  1. #21
    RIP :(
    Don Kuykendall's Avatar

    Re: D7100 Issues with Aperture Priority Mode

    Quote Originally Posted by gustafson View Post
    Generally Matrix, unless I'm doing moon shots, where I use Spot. I did have a recent episode where I forgot to switch back to Matrix from Spot and got squirly results on the venerable 35 f1.8 DX, and have learned to watch the metering mode ever since D7100 Issues with Aperture Priority Mode


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    Matrix can be a little erratic at times. I generally use the center weighted metering and have had very good luck with it. You might give it a try.


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    ================================================== ============================
    D750***D7100***24-120 f/4 ***70-300***Tamron 150-600***Tokina 16-28 f2.8***50mm f/1.8***Photoshop/Lightroom CC



  2. #22
    Senior Member

    Re: D7100 Issues with Aperture Priority Mode

    Quote Originally Posted by Don Kuykendall View Post
    Matrix can be a little erratic at times. I generally use the center weighted metering and have had very good luck with it. You might give it a try.
    That is useful to know, I will try center weighted. Is there a setting you use with center (i.e. the size of the center circle, which I believe one can set on the D7100)?


    Sent from my iPhone using Tapatalk
    D3300: 18-55 DX VR II, 55-200 DX VR II, 35 f/1.8 DX
    D7100: 200 f/4 Nikkor Q.C Ai'd, 180 f/2.8 P.C Ai'd, 135 f/2.8 Q Ai'd, 105 f/2.5 Ai-s, 100 f/2.8 E, 75-150 f/3.5 E, 55 f/3.5 P.C Micro Ai'd (w/ PK-13), 50 f/1.8 AF, 50 f/1.8 E, 28 f/2.8 Ai-s, 28 f/3.5 H Ai'd, modified TC-16A, 18-55 DX VR, 55-200 DX VR

  3. #23
    RIP :(
    Don Kuykendall's Avatar

    Re: D7100 Issues with Aperture Priority Mode

    Quote Originally Posted by gustafson View Post
    That is useful to know, I will try center weighted. Is there a setting you use with center (i.e. the size of the center circle, which I believe one can set on the D7100)?


    Sent from my iPhone using Tapatalk
    I don't remember exactly what the sizes are on the D7100. I have not looked at them in a while. If I remember correctly there are 2 different sizes? Try the larger one first and see how it works and then change over and shoot the same set of photos with the smaller size. Shoot quite a few in each setting so you get a good feel for how it works.


    Sent from my iPhone using Tapatalk

    ================================================== ============================
    D750***D7100***24-120 f/4 ***70-300***Tamron 150-600***Tokina 16-28 f2.8***50mm f/1.8***Photoshop/Lightroom CC

  4. #24
    Senior Member

    Re: D7100 Issues with Aperture Priority Mode

    8mm is the default one.

    Sent from my Nexus 6P

  5. #25
    Senior Member
    Challenge Team
    Pretzel's Avatar

    Re: D7100 Issues with Aperture Priority Mode

    Quote Originally Posted by gustafson View Post
    Here's a link to some of the problem pics. The photos that appear to be taken by a 70-210 f/4 @ 145mm were in fact taken with a modified TC-16a fitted with a 200 f/4 Q.C or 100 f/2.8 E or some other manual focus lens (I don't own a 70-210 f/4 and my D7100 has never had one mounted on it). Thank you for review and comments.

    https://www.flickr.com/gp/[email protected]/Z389m3
    Ahh, can't view flickr from work, so will look when I get home. It it displaying the EXIF with the pics?
    My current "regular" photo thread: Pretzel and the Gypsy King

    Meum est cum belli labor.



    • PAPA BEAST - D750, and the BEAST JUNIOR - D7100 (D3100 went to her...)
    • Nikkor 18-55 VR, 24-120 F4 VR, 50mm 1.8G, 70-300 VR, Sigma 105mm OS Macro, Raynox DCR 250
    • SB-700 AF Speedlight, Manfrotto 055XPro3, LowePro AW202 Sling Bag; GoPro Hero5 Black
    • LR and Photoshop CC, Perfect Photo Suite 10
    • Drive and Imagination

  6. #26
    Senior Member

    Re: D7100 Issues with Aperture Priority Mode

    Quote Originally Posted by Pretzel View Post
    Ahh, can't view flickr from work, so will look when I get home. It it displaying the EXIF with the pics?
    It is for me, but you may have to view on a desktop and scroll down below the image for EXIF options. Let me know if you're unable to see EXIF data. I wasn't able to tell from the EXIF which exposure priority mode was being used, however, so some of the photos might be in modes other than Aperture Priority.


    Sent from my iPhone using Tapatalk
    D3300: 18-55 DX VR II, 55-200 DX VR II, 35 f/1.8 DX
    D7100: 200 f/4 Nikkor Q.C Ai'd, 180 f/2.8 P.C Ai'd, 135 f/2.8 Q Ai'd, 105 f/2.5 Ai-s, 100 f/2.8 E, 75-150 f/3.5 E, 55 f/3.5 P.C Micro Ai'd (w/ PK-13), 50 f/1.8 AF, 50 f/1.8 E, 28 f/2.8 Ai-s, 28 f/3.5 H Ai'd, modified TC-16A, 18-55 DX VR, 55-200 DX VR

  7. #27
    Senior Member
    Challenge Team
    cwgrizz's Avatar

    Re: D7100 Issues with Aperture Priority Mode

    The D7100 has Center Weighted choices of 6, 8, 10, 13mm and Average. FYI
    Thanks/Like gustafson Thanks/liked this post
     
    Walt

    D750; D7100; D5300;
    18-55mm f/3.5-5.6 G II VR; AF-S VR 70-300mm f/4.5-5.6 G IF-ED; AF-S 85mm f1.8; Tokina 11-16mm f2.8 (IF) DX II; 200-500mm f5.6E ED VR; AF-S VR 24-120mm f/4G ED; TC14E II



  8. #28
    Senior Member

    Re: D7100 Issues with Aperture Priority Mode

    Quote Originally Posted by cwgrizz View Post
    The D7100 has Center Weighted choices of 6, 8, 10, 13mm and Average. FYI
    I did see that this morning, thanks for sharing! Also, the help info indicates that for non-CPU lenses, 8mm is the only option.


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    D3300: 18-55 DX VR II, 55-200 DX VR II, 35 f/1.8 DX
    D7100: 200 f/4 Nikkor Q.C Ai'd, 180 f/2.8 P.C Ai'd, 135 f/2.8 Q Ai'd, 105 f/2.5 Ai-s, 100 f/2.8 E, 75-150 f/3.5 E, 55 f/3.5 P.C Micro Ai'd (w/ PK-13), 50 f/1.8 AF, 50 f/1.8 E, 28 f/2.8 Ai-s, 28 f/3.5 H Ai'd, modified TC-16A, 18-55 DX VR, 55-200 DX VR

  9. #29
    Senior Member
    Challenge Team
    Pretzel's Avatar

    Re: D7100 Issues with Aperture Priority Mode

    Quote Originally Posted by gustafson View Post
    It is for me, but you may have to view on a desktop and scroll down below the image for EXIF options. Let me know if you're unable to see EXIF data. I wasn't able to tell from the EXIF which exposure priority mode was being used, however, so some of the photos might be in modes other than Aperture Priority.


    Sent from my iPhone using Tapatalk
    I can tell you the most glaring thing that I see right now... the shutter speed on quite a few of 'em at 1/13 at 55mm focal length. At 55mm, even with VR, you should be shooting at a BARE minimum of 1/25 shutter speed, but I'd recommend nothing slower than 1/50. Shutter speed should equal out to your focal length for most handheld shooting, TBH. Any lower, and you run the risk of hand shake, no matter how steady you feel, and it's that hand shake that I'm seeing in most of the pics. Either that, or the lovely youngster is moving a bit, and 1/13 just isn't gonna freeze your subject.

    The outside shots are the same, focal length of around 150mm, but a 1/50 shutter speed. Not only a bit of hand shake, but overexposed, as 1/50 is quite the long exposure for a beach scene, even at ISO 100 and f11. The one of the Febreze is at 150mm but 1/8 sec... ouch! Minimum shutter speed of 1/150 there, again matching the focal length is a bare minimum. Aperture mode doesn't know how you're shooting, whether it's handheld or tripod, or whether your model is moving or not. It's just taking the aperture given, the ISO available, and setting a shutter speed to allow for proper light exposure (if possible), but it doesn't mean it's always going to choose the correct shutter speed. Keep an eye on the shutter speed in your viewfinder, and if it's slower than 1/xxx (xxx being your current focal length), either open up the aperture or increase the ISO to get it higher for these types of shots. (EDIT: Or add light - flash, overhead, etc. BTW, for portraits and single subject shots that are non macro, f4 works well).

    On the pool shots outside, you were at ISO 800, which is way too high for an outdoor daytime shot, too. Overall, I think a solid understanding of the exposure triangle (especially shutter speeds as compared to focal length of the lens) is gonna help you greatly with focus, exposure, etc.
    Last edited by Pretzel; 03-22-2016 at 01:35 AM.
    Best Answers gustafson voted best answer for this post
     
    My current "regular" photo thread: Pretzel and the Gypsy King

    Meum est cum belli labor.



    • PAPA BEAST - D750, and the BEAST JUNIOR - D7100 (D3100 went to her...)
    • Nikkor 18-55 VR, 24-120 F4 VR, 50mm 1.8G, 70-300 VR, Sigma 105mm OS Macro, Raynox DCR 250
    • SB-700 AF Speedlight, Manfrotto 055XPro3, LowePro AW202 Sling Bag; GoPro Hero5 Black
    • LR and Photoshop CC, Perfect Photo Suite 10
    • Drive and Imagination

  10. #30
    Senior Member

    Re: D7100 Issues with Aperture Priority Mode

    @Pretzel, thanks for the detailed review and feedback! Your observations are spot on. Before I got the D7100, I was using manual lenses on my D3300 in M mode (the only mode that is allowed on that body). As the D7100 allows using the A mode for Ai and Ai-s lenses, and after learning that a lot of seasoned photographers shoot in A, I've been primarily shooting in that mode. I admit that I don't completely understand how auto ISO works, because I generally set mine to Max 6400 with a minimum shutter speed of 1/125, but looks like those are untenable constraints for the slower lenses that I'm using, and the the ISO is maxing out but the corresponding shutter speed is still too slow.

    It just occured to me that I should do a side-by-side test with my 18-55 VR lenses mounted on the D7100 and D3300 in A with the same auto ISO settings.

    Thanks again for your insights!


    Sent from my iPhone using Tapatalk
    Thanks/Like Pretzel Thanks/liked this post
     
    D3300: 18-55 DX VR II, 55-200 DX VR II, 35 f/1.8 DX
    D7100: 200 f/4 Nikkor Q.C Ai'd, 180 f/2.8 P.C Ai'd, 135 f/2.8 Q Ai'd, 105 f/2.5 Ai-s, 100 f/2.8 E, 75-150 f/3.5 E, 55 f/3.5 P.C Micro Ai'd (w/ PK-13), 50 f/1.8 AF, 50 f/1.8 E, 28 f/2.8 Ai-s, 28 f/3.5 H Ai'd, modified TC-16A, 18-55 DX VR, 55-200 DX VR





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