I have 130mm f5 newt and three eyepieces, an ES 24mm 68, an Orion 7-21mm Zoom, and an Agena Star guider 5mm. I have two barlows as well, a GSO 2x shorty and an Orion Trimag.
I'm trying to understand how each eyepiece interacts with the barlows. The 5mm works great with the 2x and with the barlow cell screwed on for 1.5x. Same for the zoom. The Trimag works with the zoom well too.
The ES 24mm is odd. It doesn't seem to play well with the 2x or 1.5x. It's easier for the view to black out, and the field stop seems fuzzy. When I use the Trimag, the field stop is sharp, and I have slightly fewer issues with blackouts. Why might this be the case? Why would the 24mm behave differently with the 3x vs the 2x/1.5x?
Edited by Phaenomena, 12 April 2021 - 04:19 PM.