New to this forum.....
I was about to purchase a 40mm eyepiece for my 8" Sky-Watcher (FL=1200mm) when I came across the issues re field of view for 40mm eyepieces in Cloudy Nights. My goal was simple so I thought - to increase my field of view at 30x to approximately 2 degrees. Thus using the formula, apparent field of view/magnification, I assumed a standard 52 degree Plossl @ 30x woud give me close to 2 degrees of true field, a somewhat wider angle FOV eyepiece (say 60 degrees) would give me the desired 2 degrees with a few extra dollars expended. No problem and not too expensive!!
Then I read Cloudy Nights. It appears the Meade 40mm and the Celestron Omni 40mm aren't much good for getting the 2 degrees I desire (apparently the apparent field of view is low). The experts say too narrow, aberrations, etc.!! What happened? No problem with my 26mm eyepieces (for a TFOV of about 1 degree). Where and when does the breakdown occur?
What eyepiece can you recommend to me that will give me my desired outcome at not too much cost?
Thanks for your assistance.