Yes i do understand that if i want to do it properly i need to get sorted with a slower f number. and with the resolution in photography yes there is the limiting resolution with the scope. but think of it this way, take a photo of a bug on the ground, its small clear but small. if you where to digitally increase the size of the bug there is a point where it is no longer clear. though using a macro lens so the bug is initally bigger (optically zoomed) you bug is now clear and big.
Im using a 10" f4.7 newt with a dslr my field of views are quite a size aka 3800*2500 taking photos of say M83 it ends up being a 50c piece size in the middle, the picture is clear, but zooming it in much more you start to see the effects of blurring, and no amount of "sharpening" will make it better.
If i where able to reduce my aperature to gain a few F# then for the time being this would favorable untill i have the funds to purchase a cassigrain maksutof or other form of di optical system.
"He who asks a dumb question looks dumb for 5 minutes... He who doesn't ask the dumb question stays dumb for life!"
Quote:
Originally Posted by Alchemy
f15 gives narrow field of view, resolution is dependant on aperture and quality of optics
what you get in a telescope is what you get , if you want to get in and tight longer Focal length is required. NOTE--- you will get to a point where you are fighting seeing and sampling rates theres not uch point in having 100 pixels per arc sec if the seeing is poor.
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