Quote:
Originally Posted by drfoto
I'm a Nikon photographer in the US. I have a couple of technical questions for which I hope to find a definitive answer. Unfortunately, when posed to Nikon Technical US, the answer was, "We can only tell you what Nikon engineers recommend. We don't have the specific answers to your question." As such I'm hoping that I can find a way to enlist the aid of someone in Japan to submit my request for information to Nikon Technical Support Japan where a definitive answer might be forthcoming. The internet is filled with recommendations and anecdotal experiences that are in conflict with the guidelines in the owners manuals, so definitive answers backed by rational explanation would be invaluable.
Thanks in advance for your assistance.
Mark Alberhasky
Atlanta, GA USA
IMAGEMA Mark Alberhasky Photography
My questions:
"The owners manual for a Nikon DSLR indicates that the camera should be turned off prior to changing lenses or memory cards, to avoid electrical issues."
My questions are,
(a) Is the sensor charged when the camera is on, in a fashion that could attract dust when a lens is removed?
(b) What are the electrical issues that could arise when removing a lens while the camera body is powered? |
While I do not have access to Nikon Japan, I could offer some "logical" answer to your questions while you wait for someone to redirect your question
1. Yes, the sensor is active as long as the camera is at its ON state (Sleep/standby doesn't count), though, the current passing through the sensor is minimal at best, it is only active to keep it "Active"
2. Some say you can risk a short, which is definitely possible, but the control pins are pretty far apart, it is not likely that it can be "shorted" but the locking/unlocking motion of the lens.
Keep in mind that there are still manual focus lens as well as lensbaby type lens that has NO motors or any controls, those will have NO electrical contact at ALL. And in Lensbaby case some uses it with no optics, so if dust is an issue, then those lens wouldn't have existed...
just my $0.02