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This scope is also in my wishlist.
Does any one know how to calculate the FOV from the specs?
Mark should find this interesting as well.
For example, with my Orion EON:
Aperture 85 mm, focal length 560 mm, f-ratio 6.6
The FOV seen on the screen is about 3.4 X 2.6 degrees.
With the Skywatcher Esprit 150mm
Aperture 150 mm, focal length 1050 mm, f-ratio 7
What would be the FOV you end up with (aside from the answer...smaller)??
I suppose that the term 'field radius' might come into it as well??
More Info:
I just searched astrobin for Esprit 150mm.
The average field radius was 0.5 - 0.6 degrees.
And the images were 'superb'
Last edited by PKay; 28-09-2017 at 07:57 AM.
Reason: Added more info
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