I have taken images of Orion nebulae, M31, M33 (very faint), and Pleiades with my Sony A7R II 85mm (127.5mm in crop mode) with no tracker. I feel slightly confident (like everyone) after this and want to dive deep into astrophotography.
1. Meade 6000 Series 70mm - f5 Quadruplet APO (350mm)
2. William Optics ZenithStar 73 - f/5.9 Doublet APO (430mm)
3. RedCat 51 - f4.9 APO (250mm)
4. Explore Scientific ED102 - f7 APO (714mm)
I am planning to use this mostly to shoot nebulae and some galaxies. I will be purchasing ASI533 once I am comfortable with using refractor with mount
I would like it to be fairly fast as I live in the outskirts of Chicago (bortle 7-8 skies).
1. William Optics as it is now far behind Meade but with field flattener it will probably come close to Meade ~5.3 and has longer reach (1.6x) than Redcat
2. Meade as it is the second fastest with reasonable focal length. I have nothing against it, but, price seems to be steeper than z73 however this is faster
3. RedCat 51 as it is the fastest however short focal length. My only concern is the shortest focal length out of all the 4
4. ED102 in the list because it has good reviews, I don't know if I am missing something with it, that's why it is in my list even though it is slower than the rest however longer focal length. I didn't choose ED80 version based on this review - https://www.amateura...ial-series-ed80
Please help me decide between these refractors or a better one with a 1200$ budget.
Edited by radix655, 28 September 2020 - 01:44 AM.