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
jonstarrysky
professor emeritus
Reged: 01/03/09
Loc: England, U.K.
|
experiences of binos on fast newts
#4107237 - 10/11/10 10:36 AM
|
Edit
|
Reply
|
Quote |
Quick Reply
|
|
|
I'd be interested in hearing the experiences of owners of DenkII and the other top-end binoviewers with 2" OCS units (eg MkV with Baader 1.7x Newt corrector).
How do they perform *in practise* at the eyepiece on fast Newts, say f/4.3, f/4, f/3.6 ??
The theory and recommended thresholds are fairly clear, but what do you get in practise ? Going to faster mirrors, is there a point where the experience at the eyepiece becomes dissapointing ??
|
hbanich
scholastic sledgehammer
Reged: 06/17/05
Loc: Portland, Oregon
|
Re: experiences of binos on fast newts
[Re: jonstarrysky]
#4111877 - 10/13/10 02:24 AM
|
|
Edit
|
Reply
|
Quote |
Quick Reply
|
|
|
No problem at f/4!
I've been using the Denkmeier BV with its Power X Switch and .85 reducer for several years and am quite impressed with its optical excellence. I use all this on my 28 inch f/4 Newtonian and 8 inch f/4 Newtonian with equal enjoyment with only two sets of eyepieces (24 Pans and 10 Radians).
On my big scope that gives me a range of magnification of 100x to 710x and I see excellent images at all powers. The OCS does a great job correcting coma as I see none at low power. The high power views are quite sharp, but the higher I go the more I tend to have difficulty focusing each eyepiece to perfection. Once I do, the combined image is terrific.
Howard
|
|
6 registered and 6 anonymous users are browsing this forum.
Moderator: Geo557, panhard
Print Thread
|
Forum Permissions
You cannot start new topics
You cannot reply to topics
HTML is disabled
UBBCode is enabled
|
Thread views: 1017
|
|
|
|
|
|
|
Previous
Index
Next
Threaded
