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Anonymous
Unregistered
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Hello,
I have been wanting to purchase a C9.25, however I am confused as to whether or not it is fastar compatible or not? At Adoramas's website there are verions of the C9.25 that say it is Fastar compatible! Is this true? Thanks
James
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Anonymous
Unregistered
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Here is the link to Adorama ...
http://www.adorama.com/catalog.tpl
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Rusty
Postmaster
Reged: 08/06/03
Posts: 16399
Loc: Brooker, FL
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I've never heard of a Fastar 9.25" - the 8, 11, and 14 can be had with this capability, and Celestron's site omits the feature from its 9.25" list.
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N11GPS Fastar
TOA-130S
MK66 Std
Vintage C5
Megrez II 80mm ED Triplet APO
SolarMax 40
NJP Temma II
Sirius EQ-G
ST8XE/CFW-8(LRGBHa)/AO-7/DF-2/STV Dlx/ST237a/350D (Unmodded)/Mallincam Color Hyper Plus/DSI III Color/DSI II Pro
Two not-spoiled Golden Retrievers - Maggie and Casey
Sometimes I think we're alone in the universe, and sometimes I think we're not. In either case the idea is quite staggering. - Arthur C. Clarke
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Anonymous
Unregistered
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Yes, the Celestron site doesn't mention it. However, the description for the C9.25 on the Adorama site lists it as fastar compatible ... I guess I was just getting my hopes up.
If you could purchase a C8 or a C9.25 which one would you get? Is fastar an important feature for astrophotgraphy or would the C9.25 do just as well? Thanks.
James
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jrcrilly
Refractor wienie again
Reged: 04/30/03
Posts: 22461
Loc: NE Ohio
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I'm fairly sure it's just an error on Adorma's website.
For conventional prime focus work the C9.25 will have an advantage because of its larger flat field. Fastar (or Hyperstar) would give much larger FOV with a given imager but only works with certain ones.
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John C
Urban Observatory
Tele Vue Pronto
A&M/Astreya 76mm F/6 APO
TMB/LOMO 80mm F/7.5 APO
Tak FSQ-106N F/5 APO
Meade 152ED F/9 "APO"
152mm F/10 achromat
Tak CN-212 8" F/12 classical Cass/ F/4 Newt
Teeter 20" F/3.8 truss Newt w/ServoCat
LXD750, EM-200, CI-700
ST-10XME
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Anonymous
Unregistered
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Thanks for the information! One more question ... how much difference will there be between the Aluminum tube and the Carbon Fiber one? Is the extra cost worth it?
James
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ridurall
scholastic sledgehammer
Reged: 09/02/03
Posts: 846
Loc: SW Oklahoma
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On the back page Celestron add in Sky & Telescope according to the specs the 9.25 is NOT Fastar compatible.
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Ron D.
Brunton Epoch 8.5x43 binoculars
Canon 15X50 IS binoculars
Steiner 10X50 binoculars
Alpen Model 350 7.5X32 binoculars (double barrel headaches)
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jrcrilly
Refractor wienie again
Reged: 04/30/03
Posts: 22461
Loc: NE Ohio
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Hi, James.
The carbon fiber tube looks really cool; I get a lot of comments on mine. I kinda doubt there's any worthwhile functional difference. It might be a little bit lighter. The big justification Celestron gives is that the tube will change length less with temperature changes, making the focus more stable. I've never noticed any difference between this one and older ones.
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John C
Urban Observatory
Tele Vue Pronto
A&M/Astreya 76mm F/6 APO
TMB/LOMO 80mm F/7.5 APO
Tak FSQ-106N F/5 APO
Meade 152ED F/9 "APO"
152mm F/10 achromat
Tak CN-212 8" F/12 classical Cass/ F/4 Newt
Teeter 20" F/3.8 truss Newt w/ServoCat
LXD750, EM-200, CI-700
ST-10XME
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Anonymous
Unregistered
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Thank you!
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