Given these are plain 4-element ploessl's I'd expect around
52-55deg AFOV. The inner diameter of a 2" barrel would start to
vignette around 50deg AFOV at 50mm FL.
You that's about what you might see.
Michael
52-55deg AFOV. The inner diameter of a 2" barrel would start to
vignette around 50deg AFOV at 50mm FL.
You that's about what you might see.
Michael
