I am wondering if keeping my lens on my camera at all times including when its in my camera bag could cause problems or damage? I have a small camera bag in which the camera barley fits. I was not sure if keeping it on well its in storage could damage it. I have a Canon 40D with the stock lens if that matters at all.
Photographers have been doing this since SLR cameras came out decades ago without issues. It won't harm the camera. ... and yeah, this question is more of a beginner's question and better placed in that area.
provided that you don't do anything silly in packing or storage keeping the lens on the camera is the best place to keep a lens! Like the battery (which should be charged in the camera) and the memory card - contents saved to computer and the card formatted and ready to shoot -- that leaves you ready for a shot whenever! Last thing you want to have to do is put the camera together when you see a shot
I always have one lens on my camera, always (not always the same though). And I do this for decades and gave my cameras in their bags rough times: bumping on rocks, sliding down snow slopes and all that. Never any problem. I also had cameras with lenses in bags which were slightly too small and put pressure on it, no problem either. I would just avoid too much bending around the lens mount from asymmetric pressure. But you would not get that in a normal camera bag anyway.
Not going to be a problem....Just don't loose the rear lens cap though, I can't tell you howmany cameras or lenses I have, but I can tell you I do not have anywhere near enough rear lens caps, I'm going to have to buy atleast two for every lens mount I own.
Whenever I change a lens I just take the rear lens cap from the lens I'm about to put on and put it on the lens I just removed - thus I never lose a rear lens cap and I always have one more than I'll need. Well it works for nikon lenses, I would imagine it would for Canon, Sony etc
I have more lenses than I do bodies and accesseries, and still yet I do not have enough lens caps to go around. So naturally your methoed gets shot in the foot when the lens I am about to put on to my body does not have one to switch to I buy used equipment and I sware, it seems like only a dozen people in the world who keep their rear cap with a lens, I have one Minolta body two Minolta lenses and no caps for them period, I have to keep a lens on my bellows and also use my teleconverter as a rear cap on some of my Canon lenses. Buying caps for my lenses is going to cost a fortune cuz all the previous owners loosed them,