Image of the day

Captured by
John Roach

Enhanced Uranus showing Polar Cap and possible Aurora

My Account

New to Astromart?

Register an account...

Need Help?

ccd vs. film resolution

Started by wyliecoyote, 03/18/2003 02:19PM
Posted 03/18/2003 02:19PM Opening Post
Goal; record an object/subject with maximum resolution.
Method; given equal optical quality, processing, seeing,stableness of the cameras mount, tracking, etc..
1) For any size format film/pixel based camera, use a lens that increases the size of that object (enlarging it on to the film/ccd plane) to make maximum and best use of the recording area. I.E. if you want to record a picture of a flower at highest resolution..there's no reason to have the image of the whole desert/mountains in the background using up most of the recording medium.
2.) Once you've done that, then the next major factors in the sharpness/resolution of your final image is the size of the particles recording the subject(smaller is better) and the overall size of the recording medium(larger is better).