Tagged Questions
2
votes
1answer
228 views
Why does my camera make a whirring noise during a long exposure?
I have a Sony Alpha a55.
When I take a long exposure photo, while the shutter is open, the camera makes a whirring sound. What causes this noise and why is it necessary to the camera's operation? ...
3
votes
2answers
744 views
Does the Sony A77 have a shutter?
I bought the new Sony A77 last month and I am interested to learn about how its translucent mirror technology works but couldn't find enough information on it.
My question is: does it have a shutter? ...
