Quote:
Originally Posted by ghsmith45
There is a nice article here http://www.stark-labs.com/help/blog/...ioAperture.php by Craig Stark. He discusses Stan Moore's conclusions and puts a somewhat different, but not necessarily contradictory, slant on things. His contention is that focal ratio does make a difference, but it is not as simple as "half the focal ratio makes your scope 4x faster"
Geoff |
But in this series of slides, he supports the "1/2FNo gives 4x faster" result and points out that Stan's paper was not based on pixel SNR - lots of other interesting stuff as well.
http://www.stark-labs.com/craig/reso...s_SNR_RTMC.pdf