Photography 101

[Clodfobble]

Sure, but why doesn't your field of vision get bigger or smaller when your pupil gets bigger or smaller? Or maybe it technically does, but imperceptably so? I did some googling but couldn't find the answer.

[footfootfoot]

Originally Posted by Clodfobble

Sure, but why doesn't your field of vision get bigger or smaller when your pupil gets bigger or smaller? Or maybe it technically does, but imperceptably so? I did some googling but couldn't find the answer.

Field of vision is the angle of view, ie. how wide you see which has to do with focal length or in this case the shape, size and spacing of your eyes.

Depth of field is the distance between the nearest and farthest object with an acceptable degree of sharpness. There is only one point of focus, but as aperture gets smaller the degree of sharpness increses.

This happens with the human eye as well. You have greater visual acuity on a bright sunny day than you do in the dark. (leaving aside the issues of color vs b&w vision) That is why when you get your eyes checked it is done in a dark room. Your pupils are dilated and therefore at their worst, sharpness wise.

Is spexxvet still around?