Quote:
Originally Posted by scopemankit
Make the FOV reading more comprehensive - eg, give it as arc mins etc but also in terms of moon diameters.
|
Could you (or anybody who knows) please tell me the formula or equations to calculate this, as I do not know how to do it
Quote:
Originally Posted by Barrykgerdes
Divide the eyepiece manufacturers listed FOV (in deg) by the magnification F1/F2 to get the true field in degrees.
Barry
|
This is true, but if you want a more accurate answer the equation that is attached. It requires the field stop of the eyepiece, which isn't always given by the manufacturers. It is also a lot more accurate when the FOV is higher than 60°.