Jump to navigation
Jump to search
You are not logged in. Your IP address will be publicly visible if you make any edits. If you
create an account
, your edits will be attributed to your username, along with other benefits.
Anti-spam check. Do
fill this in!
====== Newtonian Reflectors: ====== ----Pros: Fast focal ratio, most are F/4 or F/5 which allows the collection of a lot of light in a short amount of time. Cheap compared to refractors. Can be had in a nice array of apertures and focal lengths. Cons: Size. For 8" or above you will probably need an Orion Atlas mount or better. They are not very portable at all. They also need collimation every imaging session, the faster the f/ratio the more difficult a precise collimation is. They also can suffer from changes in air temperature, where a warmer pocket of air can sit on top of your primary mirror causing blurriness. Its recommended to let your telescope acclimate to outside temperatures before you begin imaging. Adding a fan on the back of your primary mirror, or just manually circulating air inside the scope can help with this. '''Best suited for: Planetary or Deep sky imaging depending on mount and aperture.'''
Please note that all contributions to !astrophotography Wiki may be edited, altered, or removed by other contributors. If you do not want your writing to be edited mercilessly, then do not submit it here.
You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource (see
Do not submit copyrighted work without permission!
(opens in new window)
Retrieved from "
Not logged in
Help about MediaWiki
What links here