The fundamental questions about the structure of cameras in photography

Duplicate post pair cost nature photography to 95 million for laptops and 120 million for genuine Le Bao Minh
I really liked the texture of the Canon EF 50 mm F/1.4 USM makes when you screw the lid, then there is no danger to the CAP well on lenses
While the 18-55 mm kits lens IS II has many times I screw the cap on the lens scrub caps do miss.
Don't know Canon EF 24-70 mm f/2.8 L II and Tamron SP 24-70 mm f/2.8 Di VC USD for Canon lens design is located deep within to prevent himself missed making the lens cap to rub on the glass when you turn that no lens Canon EF 50 mm F/1.4 USM after one month of use (month 7) I took out two more lenses shed dustat this point, has not had the experience, so I took the paper feed lau (paper feed type is completely dry, like some kind of bars light up or providing free for guests), then read see the Don'ts wipe the lens, the risk should not be removed again wipe the coating How to check the lens? the old 5 d Mark II, not to buy a memory test should not know the output quotas but how do you set the export format is RAW L then it records export quotas to take advantage of 16 MB or 21 MB, I don't remember clearly but about why crisis that, while children need export quota of about 4-5 MB only if the coating to lose I will see it Flake like layers of nylon encased in addition to something that (such as nylon layer wrapped beyond new cars seats) to lose, huh?

According to me a lens used, the times missed the hands touch the lens at manipulating or sometimes being roasted in foil, suffer children to touch, or coffee maker in the clothes of others is unavoidable, so I just wipe the glass sides with a paper towel (only once because then you know it can no longer do so coating exfoliates) then you probably not enough to influence? Whether can take night portraits are not deleted fonts with the low-noise reduction of body as the 60 d, 5 d Mark II without being annoying doesn't come? I take the example like this picture (this picture seems to use photoshop but I want to get this kind of original) watching some scenes shot on board to vnphoto see the bro/sister used a shutter speed woes (tens of minutes), to capture, as shown below, this speed is not shooting portraits is because people are not standing still as statues