WO vs DenkII's
Posted 23 May 2013 - 07:31 AM
Aperture loss starts at 200mm of back focus.
The C11 uses the same size baffle (though a bit bigger percentage of obstruction) so that makes sense that it would tolerate more back focus.
The EdgeHD 11 though apparently has more restricted baffles too. The C11 used to have better field illumination than the C14, but according to Celestron, they are the same now.
And the EdgeHD 8" is much worse than the old C8.
I have ray traces for the standard Celestron scopes and if you would like to see them, just PM me and I will send you the PDF.
Posted 23 May 2013 - 08:22 AM
Also, nice set of pairs you have there, which ones do you use most? Can you see the whole FOV with the 32 Brandons?
Posted 24 May 2013 - 12:08 PM
Posted 26 May 2013 - 02:25 PM
It comes to focus with no attachments on both my refractors and my Mak if I put it straight in the focuser, although I do have a nice 2" and a nice 1.25" diagonal if I choose that route. Extremely bright and nice views. To mag it up, I just put in a 4" extender and screw my 1.6x and 2x barlow lens elements straight to the nosepiece of the binoviewer. One or the other, both together. Usually 95x is about all I need though. On my dob though I have to screw 2 filter rings (filters out) between the nosepiece and the ocs to get my 1.6 to focus with the shortest lightpath. 2x works fine screwing it directly into the nosepiece.