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Failure of my Nikkor 800 6.3
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May 5, 2023 11:48:18   #
mikeroetex Loc: Lafayette, LA
 
jeff1234 wrote:
I have 2 Z9 bodies. I've had an 800 f6.3 for a few months. It was working great. About a week ago, most of the shots I took one day (about 700) were out of focus. This was with a 1.4. I then tested it a number of times with and without the 1.4 with the same results. No trauma that I know of to the lens. Today I microadjusted it with a target on both bodies. Minimal adjustment. I tried it again and things still look awful. Does anyone have any suggestions? I have reloaded setting in the Z9. I disabled the lens I have 2 Z9 bodies. I've had an 800 f6.3 for a few months. It was working great. About a week ago, most of the shots I took one day (about 700) were out of focus. This was with a 1.4. I then tested it a number of times with and without the 1.4 with the same results. No trauma that I know of to the lens. Today I microadjusted it with a target on both bodies. Minimal adjustment. I tried it again and things still look awful. Does anyone have any suggestions? I have reloaded setting in the Z9. I disabled the lens adjustment ring that is set to aperture. The manual focus ring still works. Bad images DSCN previous good images named. Good images first, recent awful images last.

Thanks for any suggestions.
I have 2 Z9 bodies. I've had an 800 f6.3 for a few... (show quote)


It is hard to tell since you did not download attachment to allow for metadata, but I would guess your two fuzzy shots are due to a too slow shutter speed. Your last two shots look fine, sharp eyes. The rest may be a DOF issue.
And, the Heron face shot looks cropped way deep. Are you using any kind of
rd to tell since you did not download attachment to allow for metadata, but I would guess you two fuzzy shots are due to a too slow shutter speed. Your last two shots look fine, sharp eyes. The rest may be a DOF issue.
And, the Heron face shot looks very cropped. Are you using a tripod or gimbal? 800mm can show motion blur pretty easily.

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May 5, 2023 12:21:01   #
photoman43
 
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.

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May 5, 2023 12:45:58   #
jeff1234 Loc: Kirkland, WA
 
Yes, thanks. It is under warranty.

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May 5, 2023 12:47:40   #
jeff1234 Loc: Kirkland, WA
 
Yes, the last two images were before the problem started. As stated.

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May 5, 2023 12:47:54   #
jeff1234 Loc: Kirkland, WA
 
Yes, the last two images were before the problem started. As stated.

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May 5, 2023 13:26:32   #
billnikon Loc: Pennsylvania/Ohio/Florida/Maui/Oregon/Vermont
 
jeff1234 wrote:
Yes, the last two images were before the problem started. As stated.


No, you stated the first images were and the last images were when the problems started. Please check your original post.

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May 5, 2023 13:32:20   #
jeff1234 Loc: Kirkland, WA
 
You are right. However, I did say that good images were named.

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May 5, 2023 13:32:30   #
srg
 
jeff1234 wrote:
I have 2 Z9 bodies. I've had an 800 f6.3 for a few months. It was working great. About a week ago, most of the shots I took one day (about 700) were out of focus. This was with a 1.4. I then tested it a number of times with and without the 1.4 with the same results. No trauma that I know of to the lens. Today I microadjusted it with a target on both bodies. Minimal adjustment. I tried it again and things still look awful. Does anyone have any suggestions? I have reloaded setting in the Z9. I disabled the lens I have 2 Z9 bodies. I've had an 800 f6.3 for a few months. It was working great. About a week ago, most of the shots I took one day (about 700) were out of focus. This was with a 1.4. I then tested it a number of times with and without the 1.4 with the same results. No trauma that I know of to the lens. Today I microadjusted it with a target on both bodies. Minimal adjustment. I tried it again and things still look awful. Does anyone have any suggestions? I have reloaded setting in the Z9. I disabled the lens adjustment ring that is set to aperture. The manual focus ring still works. Bad images DSCN previous good images named. Good images first, recent awful images last.

Thanks for any suggestions.
I have 2 Z9 bodies. I've had an 800 f6.3 for a few... (show quote)


Wow, great skill regardless.

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May 5, 2023 14:04:54   #
TonyBot
 
To me, the images look less out of focus than just generally soft with not much contrast.

If there was no trauma to the lens, I would think the most likely issue was condensation on inner elements, which would cause general softness and lack of contrast as the indicated shot seem to show.

If you cannot see any condensation (or dust) by looking directly through the unmounted lens, from either front or rear, one of the many interior elements may have gotten out of alignment, trauma or not.

If you cannot speak to Nikon Canada, I would send the lens back to the seller you purchased it from.

Good luck

(Edit - Several images show a dust spot on the sensor, upper middle, so dust just might be the culprit)

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May 5, 2023 14:49:33   #
74images Loc: Los Angeles, California
 
jeff1234 wrote:
Thanks but Nikon US won't help because I bought it in Canada and Nikon Canada help doesn't answer calls from the US.


That Ain't Right.

74images@gmail.com

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May 5, 2023 15:30:50   #
Ted 2455
 
Did you update the lens to the latest firmware?

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May 5, 2023 16:33:07   #
jeff1234 Loc: Kirkland, WA
 
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.

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May 5, 2023 16:48:48   #
photoman43
 
And update the Z9 software too!

https://downloadcenter.nikonimglib.com/en/download/fw/486.html

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May 5, 2023 16:49:39   #
jeff1234 Loc: Kirkland, WA
 
Months ago, thanks.

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May 5, 2023 16:54:50   #
gwilliams6
 
photoman43 wrote:
We need more information. The Z9 AF settings you used have a huge bearing on the results. Some are biased to focus on the nearest item the lens can lock on to, like a tree leaf or small branch that might be next to the bird or subject.

I would look at your images in NX Studio (free from Nikon) to see where the focus square was and to double check the AF setting.

In future test shootings, tweak the focus manually and see if the focus/sharpness improves on the desired subject. what happens. I do this all the time with my tele lenses on my Z9.

If lack of depth of field is an issue use a smaller aperture like f8 or f11. Make sure you understand how narrow the DOF will be with that lens at the distance you normally shoot. Use a DOF calculator.

Consider getting one or ore of Steve Perry's books on Autofocus settings and/or his Z 9 guide.
We need more information. The Z9 AF settings you ... (show quote)



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