Quote:
Originally Posted by Slawomir
Thanks Colin - I think you have a very nice scope that with a bit of fine-tuning will give you wonderful high resolution data.
|
I’m hoping to install fans as well in the coming weeks which will help with cooldown. Need a night of good seeing to see whether collimation is correct. It’s certainly close but I’m not sure if it needs tweaking yet.
I have an OAG and ASI120MM-S so I can go back to guiding and might do that especially I want to do 1200s exposures at 0.4”/pixel.
Quote:
Originally Posted by multiweb
Looks good Colin. Much flatter fov than my Mewlon 210. Does the 250 have a corrector in the imaging train?
|
The stars in the corners are virtually the same as on-axis, maybe better seeing will change that as the stars get smaller however. A few months back in installed the corrector baffle tube (replaces the original baffle tube that screws into the primary) into this older Mewlon 250 which reduces it from F/12 to F/10.