Posts Made By: Jeffrey Rubin

I would appreciate any thoughts on a comparison between the Vixen ED100sf vs the WO Megrez 90. As I understand, both are doublets with an element of FPL-53 glass. There are clear differences: the extra 10 mm fl of the Vixen, the 900 mm F/9 of the Vixen vs. the 621 mm F/6.9 of the Megrez. My interests are both lunar/planetary and deep space, with expectations of doing some astrophotography. Because the pricing is roughly equal, does one standout over the other? Just to eliminate one inequality: it isn't necessary that the scope be a grab-and-go.

Thanks for your thoughts on this.

JWR

Coulter 10" Dobsonian
ETX-90
WO 66mm Zenithstar Petzval