I think they are sweet scopes. It's just a bummer they get so expensive over 120mm. They also don't have the 30% + obstruction of the primary element, and having no secondary elements eliminates optical alignment problems. I think this is why smaller apo's have a better astrophotography reputation than medium/larger reflectors. Mike Clemens posts on the cloudy nights dslr imaging forums. He shoots with a TEC200mm F9 ED refractor. The images he captures are amazing. http://www.pbase.com/mclemens1969/galaxies If I had the funds, I would switch to a 150mm apo in a heartbeat. On 3/23/10 11:39 AM, Chuck Hards wrote:
I think it's a compesation issue. [?]
I love both my APO's, but they are hardly "light buckets".
On Tue, Mar 23, 2010 at 12:14 PM,<erikhansen@thebluezone.net> wrote:
Bob and Siegfired have the best refractors, why worry about the biggest?
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