Barlow lens trouble
Posted 18 March 2019 - 09:15 PM
Posted 18 March 2019 - 09:37 PM
This probably should go to a different forum.
No, the only reason you can't fit the Moon is because you are using a 2x barlow that crops the FOV, using a 2" instead of a 1.25" will not fix that. There is no way to fix that besides trying to focus the camera without using the Barlow, which from experience I know isn't possible with the 130SLT without pushing the primary mirror forward.
Posted 19 March 2019 - 08:39 AM
Just put all the data here, even with an APS-C camera you should (barely) be able to fit the entire moon with a 2x barlow.
It's important to know the camera model. The 1.25" barlow should not vignette (APSC is smaller than 1.25") but what else?
Edited by Riccardo_italy, 19 March 2019 - 08:40 AM.