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RZ350 wrote:
Wasn't this the reason Nikon was transitioning to E type lenses because of the aperture blades failing to keep up and occasionally giving dark frames? I don't know if your lens is an e type or not so I might be right out to lunch. Also you were shooting wide open so aperture should not be an issue.
Thank you all for your help. I really appreciate it.
The lens is a 400/2.8G. It was at Nikon in June or July and had a few things done (one was the lens mount was replaced). I've shot over 100,000 frames with it in the last year and this was the first time it has happened.
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90 5.0 wrote:
Where was the focus tracking and metering on that shot?
Maybe it metered a lot of weight on the bright spots on top of the helmet? That would explain the dark photo.
Is d-lighting turned on?
I was on D9 and used Matrix metering. I wonder about that bright spot. Each one has one or two but they're tiny. But perhaps they were so bright as to knock the metering completely off? That hasn't happened before, but maybe the silver helmets metallic paint made the issue worse? It only happened on a handful of shots.
I noticed later in the afternoon, that some of the stadium lights were on, probably because of the shade issue as the sun changes. I don't know if they were on in the beginning, but I found it odd in such bight daylight.
Still, this was between 1:00 and 2:00 on a very bright sunny NorCal afternoon. However, I've shot under some pretty intense stadium lighting and that hasn't been an issue.
D-Lighting (Active D?) was off.
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jpelt78 wrote:
You say on the black shots the EXIF does not show the lens focal length or aperture. It looks like the camera did not see the lens. If so, since it did not see the lens would the aperture lever on the camera fully close the aperture when the shot was taken? I’m not where I can test that right now but I think without a lens the aperture stopdown lever moves in its full range.
Now why did the camera not see the lens? Were these black shots grouped together or say the only shots taken during a lens change (adding or removing the TC). Either the lens was not fully locked in or you have an intermittent communications issue of some sort. Maybe just cleaning the contacts would help. ...Show more →
I don't know anything about an aperture lever on a lens. I'll have to learn more about this and see if I can figure out what you're saying.
The shots were loosely clumped but only two were back to back. I was shooting at 12 fps. It could be that I didn't have the lens on and running up and down sidelines. I used to be able to swap lenses on my Canons in complete darkness very quickly, but I have trouble mounting the 400 unless I hold both the lens and body. I'll make it a practice to always do so in the future. I'm strong for my age and size
I cleaned the contacts on all of my gear about a month ago, but I'll do it again. Since football season has started, I'm mounting and unmounting a TC a lot, and usually something is on the ground, as I'm trying to do it all in-between plays.
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jpelt78 wrote:
Yup, wasn't communicating with the lens. My 14-24 has started to do this on the regular, and every time I have to remove it and place it back on the camera to get it to work again. It will display 2* in the viewfinder as the f/stop whenever it does it, as well, as the camera thinks that there is a manual lens mounted.
I hope cleaning the contacts will fix it. I just have to shoot a lot of frames to test it. Then switch bodies to see if it's the lens or body.
A side note, CPS was in the media room, and often are. I was envious of the Canon guys getting their gear cleaned and checked. I'd estimate that 40% of the photographers were shooting Nikon. It'd be nice to see NPS in the field. However, I suspect it's a contractual issue.
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