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BarrySimon615
Carpal Tunnel
Reged: 03/01/04
Loc: New Orleans, LA
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Convertible Mounts: Equatorial to Alt-Az
#3154570 - 06/09/09 06:50 PM
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Or the reverse - Alt-Az to Equatorial. I see that there are some mounts that can do this. I had known that the whole RA housing on the original Vixen Polaris mount can be rotated upward converting it into an alt-az mount. Additionally I just saw this file giving detailed instructions for doing the same with the Celestron-Vixen Super Polaris mount - http://www.astromart.com/articles/article.asp?article_id=710
What other mounts are out there that can be reconfigured from equatorial to alt-az or from alt-az to equatorial?
(I know the I-Optron Tower mounts can be attached to a wedge converting them to equatorial and any Celestron, Meade, Criterion fork mount can be used in either configuration with either the use of a wedge or omission of a wedge.)
Barry Simon
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hudson_yak
Carpal Tunnel
Reged: 11/15/07
Loc: Hyde Park, NY, USA
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Re: Convertible Mounts: Equatorial to Alt-Az
[Re: BarrySimon615]
#3154787 - 06/09/09 09:07 PM
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Only one I've seen mentioned in addition to those was an earlier version of the CG-4. The current Omni versions can't, apparently.
It was noted in another topic a month or two ago that several mounts can go to latitude 0 which gives you an alt-alt or something like that. However, you still need the counterweights and they might bang into a tripod leg.
I tried this just for fun with my SVP but didn't find it particularly useful. One problem is that, unlike alt-az, you'll still have to rotate your focuser or diagonal often to get a comfortable viewing angle. There is one advantage, no Dobson's Hole at zenith.
Mike
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TONGKW
scholastic sledgehammer
Reged: 01/16/07
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Re: Convertible Mounts: Equatorial to Alt-Az
[Re: BarrySimon615]
#3154816 - 06/09/09 09:21 PM Attachment (34 downloads)
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My Kenko NES equatorial mount can be used in AltAz mode. I mainly use the AltAz mode for solar observation.
K W TONG
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C8 + CG-5GT, TSA102 + HEQ5 PRO, MK67 + Voyager Mount, WO ZS 80FD + Kenko NES, NexStar 6SE, WO Megrez 72 + Mizar K Mount, Mini Borg 50, C5, PST
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