Product Review - Bresser Messier AR-127S/635
Posted 10 July 2014 - 07:57 PM
You might be able to tighten up the focuser with strips of light trap material. I use five 3/8 inch wide strips in entry level refractors with good success. They are then able to handle heavier eyepieces without sagging or wobbling around, keeping collimation.
Posted 28 September 2014 - 09:59 AM
Nice review. It's good to see the trade-offs identified.
I took a look at the ES AR 127mm and the Bresser. The ES improvements are better tube rings and a two-speed focuser.
The Bresser currently costs $500 on amazon. The ES lists $600, with $50 off during sales.
So you have to pay 10-to-20 percent more for a better focuser.
I think experienced people would choose the better focuser. However, beginners might rather use that 20 percent for another eye piece.