Hi Adam,
I have a Bintel laser collimator and an Orion lasermate collimator I use on my 10” dob and 6” reflector. Good collimation is a must and gets easier to do each time I get the scopes out
I generally use the following eye piece focal lengths -
Stars , DSO’s 10mm to 30 mm
Planets 5mm to 10mm
Moon 5mm to 20mm
I don’t use Barlow’s
AFOV, Eye relief and Exit pupil are important factors to consider when selecting eye pieces
If you can get a copy of William Paolini’s book “ choosing and using Astronomical Eye pieces” it is an excellent resource to totally understand eye pieces in amateur astronomy. I thoroughly recommend the book
Good luck
Clear skies !
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