Are the following assertions true or false?
- The smaller the f number, the shorter the exposure you can use.
- A 10" f8 scope is slower than a 6" f4 ie needs longer exposures
- Aperture is more important than focal ratio
Interesting reads here
http://www.stanmooreastro.com/SamplingFratioMyth.htm
http://www.stark-labs.com/blog/files/FratioAperture.php
Geoff