Every day, in some way or the other, we create memories that we want to cherish for our entire life and the best way to do that is to capture them. For example, if you issue the command myCam.setMode(400, 400, 30), and the maximum width and height values available on the camera are 320 and 288, the runtime sets both the width and height at 288; by setting these properties to the same value, the runtime maintains the 1:1 aspect ratio you requested.
The Canon Ixus/Powershot digital camera I use routinely is rated at 7.1 megapixels, which is perfectly fine for almost anything I ever want to do. My new LG smartphone comes in at 13 megapixels, which (theoretically, at least) sounds like it must be twice as good.
Put a fresh set of batteries back in (preferably rechargeable NiMH 2500mah or better) and turn the camera on. If using rechargeables, and they’re more than a year old, consider purchasing new rechargeable batteries as they may not be providing sufficient power to startup the camera.
Also, I do not recommend probing too deeply around the lens barrel with the paper (don’t go more than a 1 cm or 1/2 in) Particularly I do not recommend probing deeply around the most outer (largest) lens barrel gap, as you may dislodge the lens barrel dust gasket that’s located just inside of that gap.
The focal-plane shutter is primarily associated with the single lens reflex type of cameras, since covering the film rather than blocking light passing through the lens allows the photographer to view through the lens at all times except during the exposure itself.