From: Milton Aupperle <milton@outcastsoft.com>

Date: November 11, 2005 2:12:24 PM MST

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] Re: Camera for guiding

Duane;

On 11-Nov-05, at 1:51 PM, Duane wrote:

Alan,

Have you thought about putting up a website? You have so many great

images, you really should. And then I could link to it :)

I went out and shot Mars again last night. Another night of dismal

seeing.

Umm , why shoot something on a dismal night - especially when you have to shoot 3 sets of images for each color.

Also most people aren't just doing 3 color either - they tend to do a Luma/IRFiltered + R + G + B and then use the RGB color to colorize the luma image.

What I want to mention (and ask), is my colors were a bit closer to

normal this time, but not great. This time I took the image (fresh

from Astro IIDC) and put them in their perspective chanels without

doing anything else to them. Then I adjusted levels (in each chanel

individually) and got my final result which is still less than what

I had hoped.

And what do you expect out? People like Alan that do this all the time can't comment on your problem if you don't show them images of what your producing.

Has anybody here tried the color version of this camera?

Yes.

I know the

loss in resolution is an issue due to the color bayer filter. I

don't think I'm really worried about the sensitivity loss because

that is probably close to the loss experienced with the color filter

wheel any way.

Milton, you said something about the chip being the same as the

unibrain but for the fact that the rest of the circitry was better.

Is it really worth the extra $300 and some odd bucks then?

Yes it is.

I would stick with this camera except that I'm just not getting the

color filter wheel and chanels right and it's frustrating me. It

just isn't making sense. I know color theory backwards and forwards

and I know Photoshop very well. It seems like I'm doing what it

takes but the results are just not realistic.

Duane, please re- read my original response where I suggested you try it out on a terrestrial object where you know the color and don't have to shoot hundreds of frames, stack them and then re-shoot for each color channel - especially in the dark under poor imaging conditions.

So set up a paper color target on the side of your house / garage etc. and shoot it in the daylight. For doing solar stuff in bright sunlight, I normally put the laptop inside a shaded cardboard box (heavy towels work too but can put pressure n the LapTop screen) so that you can see image on the LCD for focus and balance.

HTH..

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