The screen shows the image generated by the GstarEX on a Canon 18mm to 180mm F1.8 C-mount lens. When the zoom is set to about 30mm the field of view laterally is the same as the 5DH's view. The good thing about this finder I can see all the brighter nebula in real time! Once the object is framed I just simply zoom out to 180mm and the finder becomes the guidescope.
Bert
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