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Looks like a few manufacturers are heading down this path - I Atik have released an OAG & filter wheel for their CCDs. Is the offering from Starlight Express new as well?
My question is, what is the final mounting to sensor distance of the STF? This is important for focal reducers/flatteners? The review of the Atik one gave a sensor to final mounting distance of 67mm. (The review gave an example of 56mm being an optimal distance for some flatteners - which is the distance between the focal plane of a DSLR & the front of a standard T-adaptor). I couldn't see a backfocus distance for the filter wheel on the page mentioned above.
The back focus of the QSIwsg package is 50-53mm depending on faceplate - yes, I'll admit I'm biased!
At least they're guiding from in front of the filters!
DT
Last edited by DavidTrap; 14-11-2011 at 11:41 PM.
Reason: Added a bit
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