10 Aug
2013
10 Aug
'13
7:11 p.m.
That's a very broad statement. Generally, the fewer optical elements, the better, but sometimes a good-quality Barlow is needed. Adjusting image scale is a good example. It just depends on your target, and the telescope used. On Sat, Aug 10, 2013 at 5:23 PM, Joe Bauman <josephmbauman@yahoo.com> wrote:
I'm not talking about a Barlow. My feeling is that Barlows aren't much good for astrophotography.