Telescope Reviews: Re: Some rambling, feedback solicited

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Observing >> Variable Star Observing and Radio Astronomy

jgraham
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Reged: 12/02/04
Posts: 6763
Loc: Dayton, Ohio

Re: Some rambling, feedback solicited
07/03/09 03:01 PM

I think for serious work you're gonna want a regulated cooler. From what I've seen of monitoring a single target over a prolonged period of time you're going to have to contend with changing airmass, atmospheric conditions, and temperature. Of course SBIG has an excellent track record, but I'd also look at what QSI has to offer. The SSII might prove useful if you're concerned about budget, but I've heard that although the TEC does reduce thermal noise, the camera has a fairly significant read noise that could cause problems similar to the hot pixel issue of the DSI Pro, probably not as significant, but still something to consider if you're going to try and do millimagnitude work. As an aside, I'm using both the DSI Pro I and II and the II runs much, much quieter than the I both in terms of hot pixels and amp glow. If'n it were me I'd take a hard look at the QSI, but with two daughters heading off to college this fall I'm at least 5 years away from even thinking about upgrading my gear, so for now I'll be sticking with my Pro II.

Have fun looking at new gear!

--------------------
-John
================================================
Homebuilt scopes from 4.25-16.5"
Meade LXD75-N6/SN6/SC8, DSX-90, ETX-60BB, ETX-125PE, DS-2130
Orion StarBlast, BinoViewers, Coronado PST
Rebel XT/XTi, DSI Pro (I, II, & III), DSI, LPI, Electronic Eyepiece, Phillips SPC900NC
Tasco 60mm Refractors

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Subject	Posted by	Posted on
Some rambling, feedback solicited	groz	07/03/09 01:53 PM
Re: Some rambling, feedback solicited	jeffg	07/10/09 06:05 PM
Re: Some rambling, feedback solicited	groz	07/11/09 03:09 PM
Re: Some rambling, feedback solicited	groz	07/17/09 01:20 PM
Re: Some rambling, feedback solicited	groz	08/24/09 11:44 PM
Re: Some rambling, feedback solicited	walt r	08/25/09 09:38 AM
Re: Some rambling, feedback solicited	groz	08/25/09 03:32 PM
Re: Some rambling, feedback solicited	btieman	08/25/09 10:53 PM
Re: Some rambling, feedback solicited	cflrich	07/03/09 06:44 PM
Re: Some rambling, feedback solicited	jgraham	07/03/09 03:01 PM
Re: Some rambling, feedback solicited	btieman	07/03/09 06:04 PM
Re: Some rambling, feedback solicited	groz	07/05/09 06:00 PM
Re: Some rambling, feedback solicited	gavinm	07/05/09 09:11 PM
Re: Some rambling, feedback solicited	groz	07/07/09 05:17 PM
Re: Some rambling, feedback solicited	cflrich	07/07/09 07:50 PM
Re: Some rambling, feedback solicited	brianb11213	07/08/09 05:00 AM

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