Quote:
Originally Posted by johnnyt123
This maybe a noobie question but I though that reducing the f ratio meant a wider field of view.
I mean I have a cpc 9.25 and when I place the f6.3 focal reducer I notice the field of view is much wider.
So I though at f2 everything would be tiny!!!!
John
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The above image was cropped a little. DSS left strange black lines across the top of the image.
The Edge HD can image at F2 , F7 and F10. Here are the FOV's for each focal length.
Here's also a Hyperstar shot un-cropped from IISAC 2013 . Cant remember why, but I only exposed for 20 seconds. You'll notice less faint detail in M42 when compared to the original image (35 sec)
Hyperstar FOV on the APS-C sensor = 130.2 x 86.8 arcmin.