That was what I noticed when looking at saturn. Both were very sharp and free of chromatic "inhancement" , but conditions allowed the smaller refractor to use more magnification. Long tubes need perfect conditions and are affected more in average seeing.
That is a great little refractor Chuck (not to mention the modest cost), I saw a nice double through it also, it is a great scope for double stars also. I think this can also be true for solar observing. Last night was a good example of the seeing determining maximum usable
aperture. I noticed that the 100mm refractor was showing a more crisp view of Saturn than the Bogdan (and other scopes with twice the aperture), even though it was appreciably dimmer in the smaller scope.
On 5/16/10, Canopus56 <canopus56@yahoo.com> wrote:
One general public visitor commented that he did not understand why the 16 inch Ealing had such a better image than the larger Grim scope. But I suspect that, as a glasses wearer, he was able to get the Ealing into proper focus with the fine focusing knob but could not do so with the Grim.
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