Quote:
Originally Posted by gregbradley
I just received my CFF 105mm F6 APO oiled triplet with FPL55 glass.
It has a 3.2 inch Feathertouch rotating Focuser with microfocuser.
The most amazing part is the test report on the optics. .993 strehl! I have never heard of a strehl that high before in a scope. I am wondering if its in part a result of using the FPL55 glass which is the same performance as FPL53 but better polishing qualities.
The scope is super well made with flocked interior of the dewshield and a nice sliding and locking dewshield, pearly white paint and the scope comes with a handle, rings and dovetail plate plus a mounting point for the finder scope.
I got a field flattener designed to cover a 16803 sensor. I only now need an adapter from the flattener to the FLI cameras. Later I'll get a Starlight Feather touch focuser electronic focus unit.
It comes with a soft case. I used to have a TEC110 F5.6 fluorite and it had a TEC made lightweight focuser which was too light weight for FLI cams. I think this scope will surpass the TEC, time will tell. Its an alternative to FSQ scopes (I have had an FSQ106N and an FSQ106EDX111 both good but I wanted something different).
Photos later.
First light is likely to be using a full frame mirrorless if I can find some attaching adapters.
Very excited.
Greg.
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Hi Greg,
Congrats on your new scope - CFF was the other brand I was considering when I bought the APM 152/1200 F7.9 LZOS which also has a certificated massive Strehl (I am sure it's the same, from memory). CFF scopes look great.
Just one question: With a CCD like the FLI 16803, how can your scope produce an image circle sufficient to cover the big square sensor? (Or do I have my facts wrong here? ) I bought a massive, dedicated WO Reducer /Flattener for my WO Gt 102, (though why did I buy a reducer when it's f6.9 anyway?)and have been informed that I can't use full frame sensor cameras with it as I will get vignetting (caused by the reducer rather than the flattener optics). Is this likely? No wonder I am still undecided about a OSC camera (goodbye QHY367C?)Maybe an APSC sensor only.
Wishing you many happy hours and clear skies with your new high quality scope!
Cheers,
Richard