When you are using the viewfinder, whatsoever the aperture value is, the lens will be in widest aperture until DOF-preview button pressed or half-shutter button.But what about the aperture value when ...
As I have known so far, image sensor gets heated when being exposed to light for longer time. Is there any other reason why an image sensor gets heated? Does heating depends on sensor type (like CCD, ...
The earlier question What are the advantages of using the optical viewfinder over live preview to take photos on a DSLR? asks for practical advantages of optical viewfinders. But what's the technical ...