From: Milton Aupperle <milton@outcastsoft.com>

Date: December 11, 2006 7:27:03 PM MST

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] New guide camera wanted

Hi Dale;

On 11-Dec-06, at 6:21 PM, Dale J Martin wrote:

Hi Milton,

On Dec 11, 2006, at 4:19 PM, Milton Aupperle wrote:

Hi Dale;

On 11-Dec-06, at 1:46 PM, Dale J Martin wrote:

An Imaging Source AF or BF series Mono camera would do the trick as

it allows up to 30 second exposures and should give you more light

gathering capability. The main issue with the Unibrains mono or

color are that they are really noisy, especially at high gains.

This is the problem I'm having with the Unibrain camera, I'm having

it having to turn the gain up and Astro IIDC is having problems

locking onto a star and not noise.

Try adjusting both the Brightness and the Black Point setting too. I find that adjusting them both can improve the S/N ratio, especially in conjunction with the CCD Overdrive option. It's tricky but you can improve the S/N ratio to isolate out a star.

I have been playing Brightness and Black point, but as you say it is tricky, and a bit of a pain since you can't adjust those on the fly.

Yes you can, their live controls. Unless you mean drag 2 sliders at once in opposite directions?

Milton J. Aupperle

President

ASC - Aupperle Services and Contracting

Mac Software (Drivers, Components and Application) Specialist

#1005 - 815 14th Avenue. S.W.

Calgary Alberta Canada T2R0N5

1-(403)-229-9456

milton@outcastsoft.com