Click here if you are having trouble logging into the forums
Privacy Policy |
Please read our Terms
of Service | Signup and
Troubleshooting FAQ | Problems? PM a Red or a Green Gu.... uh, User
llanitedave
Humble Megalomaniac
Reged: 09/26/05
Posts: 12929
Loc: Amargosa Valley, NV, USA
|
Re: Strange Results in Eyepiece FOV Comparisons
05/18/08 01:44 AM
|
|
|
I don't think it's an artificial concept at all. It's a real characteristic of a specific eyepiece. When all distortions and aberrations are taken into account, the Hyperion 8mm will perform as a 76 degree eyepiece, and the UO Orthoscopic will perform as a 39 degree eyepiece.
Once that measurement is done, I can insert the eyepiece into a scope of a different focal length and predict what the true field will be.
Is that incorrect?
--------------------
"Since the process of science generates more mysteries than it solves, I predict that we'll never learn everything: and we'll continue to generate new ignorance at the speed of knowledge."
"S.O.E." (Sauron's Other Eye), with 16" Royce conical mirror: A permanent work in progress.
10" Homebuilt dob, old Coulter mirror
Under Construction: The "Eye of Sauron" Observatory!
|
|
10 registered and 7 anonymous users are browsing this forum.
Moderator: Greg K., Jason B, csa/montana
|
Forum Permissions
You cannot start new topics
You cannot reply to topics
HTML is disabled
UBBCode is enabled
|
Rating:
Thread views: 1793
|
|
|
|
|
|
|
Previous
Index
Next
Flat
Edit
Reply
Quote
