I just purchased the Canon 40mm pancake lens for my 40D. I noticed that the barrel of the lens extends when focused close. Do I need to be worried about making sure the barrel is retracted before ...
How should a dslr camera, lens, and batteries be stored if they aren't going to be used for weeks-- if not months? Is it dependent on manufacturer (Nikon, Canon, etc)? Is there any risk of damage if ...