Showing posts with label AFOV. Show all posts
Showing posts with label AFOV. Show all posts

Wednesday, April 29, 2020

TPM Telrad Pattern Matching

Another write-up on a subject so trivial that it deserves a detailed explanation! How do you use a Telrad properly? Many people use it as just a glorified red-dot finder, which is sad to see when you know its potential rivals even the most advanced GoTo systems.

But let’s start from afar with the most frequent question a beginner or mature amateur astronomer constantly faces: How do you point a telescope at a deep-sky target that is completely invisible to the naked eye? And how do you do it reliably?




Photo by Guillermo Ferla on Unsplash

Sunday, July 24, 2011

My eyepieces

Plain list

DModel NameFNotesAFOV
2"Celestron E-Lux40mm56
2"APM UFF30mm!70
2"Zhumell26mmWF FMC?
2"Televue Ethos 17mm! Favorite100
2"No Name14mmSWA?
2"William Optics 8mm!101
2"Televue Radian 6mm60
2"Televue Ethos-SC 3.7mm!110
2"Zhumell ED Barlow2x! FMC?
1.25"Meade 5000 Plossl40mm?
1.25"Meade SP26mmLP +Sky Glow ?
1.25"Celestron UE FF24mm65
1.25"Meade GS-515mm?
1.25"Meade 4000 Plossl9mmMicrometer lit reticle40
1.25"Meade GS-57.5mm?
1.25"Assorted EPs
?