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F2 though is a bit of a fooler. Its the aperture that counts. F ratio really only refers to the width of field.
I am with Paul here. I have a 8" f/10 sct and 8" f/4 newt. My latest addition to the 8" sct is a f/4 starizona night owl reducer. Already have a Meade 3.3 and 6.3 reducers. Only have to do a 15 sec capture on any camera to see the difference between the Rasa and the other 8" scopes.
cheers
The Rasa 8 is an ideal scope for VA. I want an image with detail in less than a minute. Beautiful images with pinpoint stars at the corners are not a priority for me.
It appears astrophotographers have different requirements and I can understand why the Esprit 80 is a favourite.
cheers
Paul
I often use a lightwave 0.6 focal reducer flattener on the Esprit. The reducer is meant for refractors f6 or more so I dont think you guys would approve of what I do to that poor little scope.
cheers
Paul
Last edited by RB; 11-10-2019 at 07:59 AM.
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