StephenS_CP
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 Re: Anybody ever figure out R5 (sensor burning?) issue? | |
OP, thank you for the clarification. The images posted in the links clearly demonstrate just what the problem is that you are inquiring about. They also indicate the reported problem IS NOT:
* sensor burn, i.e., physical damage to the sensor, or
* shutter damage,
both of which are demonstrated the Lensrental Youtube.
I find it interesting to note that the damage appears to be very localized on the mount/baffle/whatever and doesn't even spill over onto the sensor. If that is due to light concentration, that is an incredibly tight pinpoint of light! It is also interesting to note that the presumably highly concentrated, focused light is very far off the central axis of the image, i.e., typically NOT where you expect the most heat to be generated. I would speculate that for this to occur, the bright pinpoint light presumed to cause this is likely to be a light source, as in event or portrait lighting, or a highly focused internal reflection.
So this leads to a few questions about your shooting conditions, particularly during event/portrait shooting.
* what focal length lenses are you using
* do you have lens hoods attached
* does your camera spend extended amounts of time turned on in a fixed position with fixed artificial lighting?
I don't do your type of photography, and as an amateur outdoor photographer, I don't deal with the rigorous and intense lighting situation you do, but I don't have this damage to my camera and
* I virtually never have my camera turned on without a lens hood in place [I do tend to be somewhat lax in my usage of a lens hood with my WA zoom lenses]
* I always have a lens cap on when the lens hood is not in place and often if I'm in a time gap between active shooting.
While not intended to prevent the kind of damage your are asking about, these would be "user manageable" steps that would mitigate your risk to what is presumed to be light-driven damage.
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