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Save me from myself


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Already spent my Christmas money, and then some. Ordered a William Optics GT81 APO triplet f/5.9 with field flattener/reducer that makes it f/4.7. It has a 2" 1:10 Crayford 2-speed focuser. Now, I'll be able to image at f/4.7, f/5.9, f/6.3, f/7, and f/10, depending on what I want to shoot at.

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You can often persuade scopes to operate beyond their nominal capabilties! :)

I suppose I'm more into Focal Lengths than f-number? [grin] :p
Some of my scopes are not (to say the least) "blisteringly fast".
I've arrived at a stage where I don't need (to many) more...  :D

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9 hours ago, Macavity said:

I suppose I'm more into Focal Lengths than f-number? [grin] :p

Well.......if you put it that way, I can image/view at 478mm, 945mm (effective), 1400mm (effective), 1500mm and 2000mm. I'm just thinking of all the different fields of view I'll have at prime focus. This one will be the LAST. Period. No more. I swear. Now it will be guiders, CCD cameras, processing programs, laptops.....:help:

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