From: Milton Aupperle <milton@outcastsoft.com>

Date: May 24, 2006 11:02:51 AM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] Been a while!


Hi Duane;


On 23-May-06, at 10:58 PM, Duane wrote:



My shot of Juipter, Red Spot (can make out Red Jr if you know right where to look) and Io's

Shadow.


Details: Fire-i Color board camera


=================== File:20060522_232611_L.mov #frames 1009

Color Camera - Model:'Fire-i BCL 1.2' SerialNumber: 0x2636C57

Gamma:  1.00

Saturation: 24

Blue Gain: 85

Red Gain: 87

Brightness: 255

Black Point: 128

Exposure: 40.62 ms

Sharpness Limiting On: 0

Dark Frame Subtraction On: 1

Flat Frame Correction On: 0

Invert Image On: 0

Flip Horizontal On: 0

Flip Vertical On: 0

Binning Off Color


A few comments.


I'm not sure why you needed to subtract a dark frame with 40 ms exposures?


You had exposure at 40 ms and gain cranked to 255 which is maximum. As I've stated in the manual before, Gain amplifies noise and noise blurs features so your you much better off leave the exposure at 66 ms and then pushing the gain down.


Used 25 of the 1009 frames (seeing was bad. Only one really good frame).


To be honest, I generally don't post shots when the seeing is that bad - except if it's some once in a life time thing.


PS. I have a smudge on my IR filter. How do I clean that? Better to buy a new filter? Thanks

for the help.


You clean it just like you do for your scope optics, lenses or eyepieces.


I wash with a cue tip and a 99.999% distilled water +/- trace of dish soap and finnish with 99.99% rubbing alcohol - but their are other products or concoctions out their too. Do not use the garden variety 70% alcohol as that has 30% other "stuff" in their and leaves residue on the optics.


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

www.outcastsoft.com