It works! (Or so it seems)
Well, well,well, finally an evening with several of hours of (reasonably) clear skies. I had no chance of setting up my equatorial mount and telescope for Jupiter, but nearby Moon provided an ample target for some tests of my new "invention" with my camera and Tamron 700 mm f/11 system on a tripod. So, here's some, if not "proof" then at least "evidence":
First find your target Then fool the sensor with a dose of LED light That's better! Now set the crop-factor o an appropriate value.
As it turned out, on my Pentax K-5 8X cropping provide close to a 1:1 representation of pixels on my sensor to pixels in my video frames. I only took a handful of still images and seeing was still not too good, but here is a representative crop to the same part of the Moon as shown above.
100% non-resized crop of single exposure taken with Pentax K-5, Tamron SP 350mm f/5.6 Model 06B lens and Tamron SP F-series 2X teleconverter. 700 mm focal length; f/11; 1/30 s; ISO 200 And finally a downsized version of the full image used for Figure 16 above. (Clck on image to see larger version).
Of course, I have applied no sharpening or similar to the above frames.
And of course, with the video I have had the luxury to have several frames to choose from, but the fact that I could indeed find frames as good as the one I have shown demonstrates, what this was all about
: Videos obtained this way should indeed be suitable for planetary photography and stacking. It would be tedious to mosaic the Moon this way, but the technique does seem (to me at least) promising for planetary work (and sunspot photograhy?).
And Jupiter is still waiting.......