Thread: For Sale Orion ED80 -SOLD-
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Old 22-04-2007, 06:42 PM
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Rodstar (Rod)
The Glenfallus

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Quote:
Originally Posted by centauri View Post
Focal length is 800mm, or is there one to many 0's?
These are traditionally 600mm focal length I thought.
Yes, the ED80 has an 80mm aperture, and focal length of 600mm, producing an f/ratio of 7.5