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I first purchased this diagonal on my last combat deployment, and used it in conjunction with a 4" Mak. The difference in views I got with the William Optics Diagonal, compared to the diagonal that was supplied with the telescope were more than noticeably better.
For DSOs using an F/14 ratio Mak, I needed all the light I could get, and this diagonal helped out quite a bit. It turned the Orion Nebula into a real treat.
The input tube is threaded for a filter, which I found to be very time saving, and the lens objective retaining ring was great. It held all my lenses firmly in place without marring the barrels.
As soon as my company gets settled in Afghanistan, I plan on purchasing this diagonal again, to use with a 180mm Mak!
Rating:  [5 of 5 SWANs!] |
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![NEW 1.25\" CF Style Dielectric Diagonal](images/dig_die_125in_carbonFiberSC.jpg "NEW 1.25\\" CF Style Dielectric Diagonal")
