Quote:
Originally Posted by alpal
Hi Mike,
actually a Newt is still the biggest bang for the buck.
A 20" Newt would cost nowhere near what some of the
large newer designs cost and also the linear obstruction
would not be 55% but whatever you chose -
which could be 28% and still illuminate a medium size
camera sensor with reasonable spot sizes.
On axis the spot size would be just as good but
the contrast ratio would be even better!
However as the Newts. get larger the mechanical
problems increase exponentially.
Preventing the primary mirror from having
lateral movement is just one challenge of many.
cheers
Allan
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Yeah a 20" F3.8 Newt would be just about perfect 👍...and should juuust squeeze into the 3M dome
Mike
Quote:
Originally Posted by CoolhandJo
So the detail inside is -- extraordinary.. not to mention the universe you captured around it. And now let's discuss the contrast, colour, and background..... very natural as if i was actually there... :0
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Thanks so much Paul, a great description and pretty much how I felt too after putting it all together
Mike