Edward Engelhardt (pizzicato)'s status on Saturday, 20-Aug-11 22:54:26 UTC
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@gingersnap Haha, not really. X-370 is just a model number of the camera. 50mm refers to the focal length, which means how much 'zoom' the camera has. The caveat with focal length is that the longer the 'zoom' (the higher the number), the narrower the field of view. So something like 25mm is going to have a really wide field of view, whereas a 300mm lens is going to have a narrow field of view. The 'f number' refers to how wide the opening at the end of the lens is. It's read as f/x (f = focal length, x = aperture), so f divided by x, but represented as f#. If you have a f1.8 on a 50mm lens, it means the opening at the end of the lens is 28mm. The higher the f number, the narrower the opening, and the less light that gets in, and it changes how the light is refracted. The higher the refraction, the wider your depth of field (area of focus). So f1.8 let's in lots of light, shorter exposure, but narrow depth of field. f22 doesn't let in a lot of light, wide depth of field, long exposure
