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3rd post was just saying he used 1/8000th of a second... not whether he was viewing and composing the shot using live view.
Thanks for the effort Bob. We should take in consideration that I actually looked trough viewfinder to compose the frame, so shutter's curtain might be exposed for at least 5-10 seconds. Anyway, I will be able to inspect curtain and the sensor when I get home. I will make sure I add some macro of the affected area.I've just been trying to reproduce this and failed. I have an old film body (mirror taped up and the shutter curtains removed) that I use for finding the NPP of lenses using a laser. I popped on a Zeiss 85/1.4 and focussed at infinity and then put a piece of black paper where the film would be. I could see the bright spot focussed on the back of the paper to keep it positioned but couldn't get the sun to mark it let alone burn it.....30 seconds or so and it's bright and sunny here.
In the scenario described by Mark then the sensor/shutter curtains would have only been exposed to this for the very brief time that the mirror was up.... <1/100 second.
Bob
Will do!but he wasn't shooting video or using liveview, so it shouldn't be possible to fry a sensor in this way.
As said earlier, visually inspect the sensor with a loupe or torch and get in touch with Nikon...
Thanks for the effort Bob. We should take in consideration that I actually looked trough viewfinder to compose the frame, so shutter's curtain might be exposed for at least 5-10 seconds. Anyway, I will be able to inspect curtain and the sensor when I get home. I will make sure I add some macro of the affected area.
This makes sense Bob, it is nice that our community has experts like you.If you could see through the viewfinder then the mirror was down and blocking the light path to the shutter curtains Mark.
Bob
Thanks Mark.This makes sense Bob, it is nice that our community has experts like you.
It's unlikely that any shutter problem is related to the shooting the sun incident, just coincidence.
Well, the OP can test this with two series of experiments:I doubt very much if the shutter is damaged ... I suspect the sensor or some filter has been damaged ...
The cameras was hand held. It was pointed at the sun for max 5-10 seconds, but again - shutter speed was 1/8000 and I was framing using viewfinder.Just out of interest was the camera on a tripod with the shot held in the same position for a while?
If the problem is persisting with a 1 second exposure, then I can't see how it can be the shutter. In round terms that exposure consists of 1/250th when the shutter is opening, 1/250th when the shutter is closing, and 248/250ths when the shutter is fully open.Ok guys, so the test shows:
1/500
1/15
1 sec
Whenever I am framing a shot, there is no white spot neither in viewfinder, neither on LCD.I think that your tests have eliminated the sensor or the shutter as being the culprit so a couple of questions;
Do you see the overexposed portion when viewing the shot on the camera's LCD screen?
Are these JPG's from the camera or processed RAWs?
Bob
Article says that in can disappear in meter weeks. This doesn't quite work for, since I have some plans on shooting stuff with my camera, so at this point I would really love to have an idea of what I am dealing with, so I can plan my budget a bit more. I can imagine that a sensor replacement + work + delivery + collection can go up to 50%-80% of this camera's cost (£550).Television cameras fitted with tubes were highly susceptible to burning if they were left pointed at the sun** but I've never heard of it happening with a stills camera.
** http://en.wikipedia.org/wiki/Video_camera_tube - see 3rd para. (A set of three replacement tubes used to cost around £5k on a broadcast camera).
i can see "something" on pic 4 on the bottom left, remember it will (if i remember right) be inverted and flipped by the camera prism.
Yes, it happens with all lenses. I tried zoom, prime, kit and one late 1960's lens made by soviets.does it do it with another lens?
No filters, that is just plane PS with auto WB and auto exposure tweeking.It would be bottom right, not left.
Process RAW's.....you haven't left a radial filter active in the software that you use?
Bob
Yes, you can clearly see the spot after you take the frame and it appear on the LCD.If you display the image on the cameras LCD is the circle there.
Sorry if this has been asked before.
I left the camera overnight after the first day, it didn't go away.This might sound a little crazy but maybe worth a try, leave the battery out of the camera over night as a 'hard reset' for the electronics to see if any residual effects from being pointed at the sun would disappear?
At this point I have no clue either, so I am going to send it away and them hopefully get an explanation.This is the damnedest fault I've ever heard of. Stewart R is right.. the 1 second image rules out shutter.
As unlikely as it may seem that's it's sensor damage... it's time for Occam's Razor. It wasn't there before he took the first shot on page one with the sun in the top right. From then on, there's been a light blob in exactly the same place as the sun was in that shot. He's not using any processing that could have a radial filter set as a pre-set or action, and it also appears on very long shutter speed images thus ruling out a shutter issue.
ergo - it's a sensor issue. While everything I know is suggesting this is unlikely... in all seriousness... I'm left wondering what else it can be.
I left the camera overnight after the first day, it didn't go away.
At this point I have no clue either, so I am going to send it away and them hopefully get an explanation.
Sure is puzzling (& an interesting read)
Probably not related, but it seems like the mirror is quite `dirty` & wondered if that had any bearing. (is there an imperfection or tiny damage causing light refraction...?)
Good luck with it.
Article says that in can disappear in meter weeks. This doesn't quite work for, since I have some plans on shooting stuff with my camera, so at this point I would really love to have an idea of what I am dealing with, so I can plan my budget a bit more. I can imagine that a sensor replacement + work + delivery + collection can go up to 50%-80% of this camera's cost (£550).
A couple of things may have happened, either you burnt the IR filter on the sensor or the coating on the lens.
Pointing a camera directly at the sun is no different to using a magnifying glass on a sunny day to focus the sun into a spot to burn writing into a tree or to fry poor unsuspecting insects like we did at school.
.
Have you tried this Steve?......I did (as described in post #37) and failed to burn anything with an 85mm lens.