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Old November 22nd 04, 09:18 PM
Nate Perkins
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Default Help with elliptical secondary source?

Hi,

I'm looking at sources to buy an elliptical secondary (around 2.14")
for my first Dob project. I see a lot of variation in prices ...
reading some Google archives gives me the impression that the
secondary quality doesn't matter overmuch. Is this the right
impression? I'm interested in thoughts and recommendations.

Options so far:
Orion 2.05"/2.28" - around $23-$25, ? refl, ? wave
University Optics 2.14" - $59, 94% refl, 1/10 wave
Astrosystems 2.14" - $80, 94% refl, 1/10 wave
Protostar 2.14" - $99, 94% refl, 1/10 wave
Discovery 2.14" - $119, ? refl, ? wave

I'm leaning toward either UO (because I had good experiences buying EP
from them), or toward Astrosystems (they are a local company to me).

Thanks in advance,
Nate Perkins
Fort Collins, CO