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Guidescope
Just throwing a few ideas around for a DSO imaging set up and would appreciate any advice you guys and gals can offer.
A Canon 5D attached to a TV101 (4" f5.4) via a 2x barlow gives an FOV 75.2' x 112.7' and an image scale (FOV per pixel) of 1.55"/pixel.
If mounted on a Losmandy GM8 would this set up benefit from an autoguider if the maximum exposure length is about 5min? What about if using ep projection (smallest ep I have is 3mm, but this may not be suitable for imaging).
If so, guidedog and a webcam looks like a good cheap combo (especially as I can build the optocoupler interface to the mount), any ideas for an OTA for the cam?
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