Failure of my Nikkor 800 6.3
May 5, 2023 16:55:21 #
jeff1234 wrote:
Thanks to all. I will be sending the lens in to Nikon Canada after I take a few more post updating the lens firmware to verify no change. Nikon US support was helpful this morning and suggested same.
May 5, 2023 16:56:19 #
May 5, 2023 16:56:49 #
photoman43 wrote:
I downloaded your last image to my computer and viewed it in NX Studio. No shooting data was available nor was there any data in MetaData or IPTC.
I agree that the camera did its thing. The eye is in focus.
When you create Jpegs for view at sites such as this one, set your preferences so shooting data is preserved and transferred to the Jpeg. In some programs the options are in the Export settings box.
I agree that the camera did its thing. The eye is in focus.
When you create Jpegs for view at sites such as this one, set your preferences so shooting data is preserved and transferred to the Jpeg. In some programs the options are in the Export settings box.
May 5, 2023 17:03:56 #
You are doing the right thing by sending it in to Nikon Canada for diagnosis and any corrections needed. Many posters had good possible reasons why your images dont look sharp.
Add one more, atmospheric conditions. Using a 800mm lens at fairly long distance to subject ,you are very prone to any atmospheric conditions that can ruin apparent sharpness, and can actually fool and affect your autofocus in all your shots at that distance .
I have seen that happen under the right atmospheric conditions, even with the best setups using the best 400mm and 600mm lenses as a pro. People dont seem to understand this can and does happen sometimes when using super telephoto lenses, even when it seems to the naked eye that you have clear atmosphere.
Read this about how atmospheric conditions can affect your autofocus, as well as pixel shift, which can both at times be exaggerated with super telephoto lenses:
https://willgoodlet.com/blog/avoid-pixel-blur-telephoto-lens-photography
Cheers and best to you, and let us know how it all comes out.
Add one more, atmospheric conditions. Using a 800mm lens at fairly long distance to subject ,you are very prone to any atmospheric conditions that can ruin apparent sharpness, and can actually fool and affect your autofocus in all your shots at that distance .
I have seen that happen under the right atmospheric conditions, even with the best setups using the best 400mm and 600mm lenses as a pro. People dont seem to understand this can and does happen sometimes when using super telephoto lenses, even when it seems to the naked eye that you have clear atmosphere.
Read this about how atmospheric conditions can affect your autofocus, as well as pixel shift, which can both at times be exaggerated with super telephoto lenses:
https://willgoodlet.com/blog/avoid-pixel-blur-telephoto-lens-photography
Cheers and best to you, and let us know how it all comes out.
May 5, 2023 21:16:51 #
billnikon wrote:
Eye focus on the last two images are dead on. The camera functioned correctly. I would suggest shooting flying birds at 1/4000 sec. to freeze wing tips. I see the wing tips not sharp in the last image, that is not out of focus but more likely a result of a slower shutter speed.
Yes I agree with Bill here, 1/4000 sec. can be necessary to freeze fast wing tips.
May 6, 2023 13:18:13 #
May 6, 2023 14:11:23 #
May 6, 2023 15:16:39 #
billnikon wrote:
Eye focus on the last two images are dead on. The camera functioned correctly. I would suggest shooting flying birds at 1/4000 sec. to freeze wing tips. I see the wing tips not sharp in the last image, that is not out of focus but more likely a result of a slower shutter speed.
slower shutter speed OR depth of field.
May 6, 2023 19:02:58 #
jeff1234
Loc: Kirkland, WA
Thanks for the suggestions. I sent the lens in today after talking to Nikon US Yesterday.
May 7, 2023 09:04:44 #
Unfortunately you did not provide a "download" with your images so I can't look at your setting details. The owl shots are super sharp, while the first two images seem to taken in low light situation. Are you shooting in some sort of auto mode. If you are shooting in an auto shutter speed mode, low light situations are going to give you. slower shutter speeds and potentially motion blur. This could also be the same situation for other auto modes; iso or aperture. So, bottom line, a proper evaluation means we need more information. In my mind, some sharp images and other not so sharp seems that the lens is probably fine and its more of an operator error thing. Good luck.
May 7, 2023 16:25:03 #
jeff1234
Loc: Kirkland, WA
All on manual. I included some sharp images from before the problem started. I certainly have my share of operator errors, but when 700+ shots are all out of focus, it seems unlikely to be the cause.
May 7, 2023 18:31:54 #
jeff1234 wrote:
All on manual. I included some sharp images from before the problem started. I certainly have my share of operator errors, but when 700+ shots are all out of focus, it seems unlikely to be the cause.
Please report back after Nikon's evaluation of the lens. The only thing not adding up, if it is indeed a bad lens, would be how did you ever get those beautiful, super sharp owl photos?
Sometimes atmospheric distortion can happen and is ever more apparent the larger the magnification and longer the lens. Not to mention the slightest bit of shake.
By the way, I have a lot of difficulty picking a small bird, out of several branches in a bush, in the shadows as well, even with animal eye detection on. You may be expecting more than any lens (or camera) can do.
May 8, 2023 10:48:17 #
billnikon wrote:
I'm confused, your last two images appear very sharp to me.
I agree.May 8, 2023 10:50:13 #
Atmospheric distortion also known as mirage is a phenomenon of long glass whether camera or rifle.
If you want to reply, then register here. Registration is free and your account is created instantly, so you can post right away.