F 6.3 is not as visually sharp as the F 10 focal ratio in an LX200.
Unk

James Brasure wrote:

> Hi Folks,
>
> I'm about to get a 10" LX200, but I can't decide which f-ratio to get.
> Maybe you can help me decide. I'll be using the scope for a little bit of
> everything. Here is what I'll do most:
>
> Visual Observing
> ----------------
> - Low magnification lunar observing
> - High magnification planetary observing
> - Observing of brighter deep sky objects
>
> 35mm photography
> ----------------
> - Solar and lunar eclipse photography
> - Planetary photography
> - Some deep sky photography, but not as often
>
> Right now I'm leaning towards f/10, because I think it will give higher
> contrast views. I guess my big question is this: Does an f/10 scope with
> a focal reducer produce visual images that look very good? I know that it
> darkens the edges a little, but is it very severe?
>
> I would love to hear your opinions! Thanks,
>
> James Brasure

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