From: Perry Holcomb <hpholcomb@yahoo.com>

Date: March 24, 2008 5:33:57 PM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] Re: IR filter with a DMK color .AS camera?

Re:  TIS Web(??) Cams--

DBK = Color (Bayer) w/o IR cut

DMK = Monochrome w/o IR cut

DFK = Color w/ IR cut

The above come in USB or Firewire models.

Pretty sure the later .as (astronomical) designation

comes from the camera having no lens.  The earlier TIS

cams came with lens that had to be removed for astro

use.  Those did not carry the .as designation.

Perry

--- Mark Gaffney <markgaffney@mac.com> wrote:

--- In Astro_IIDC@yahoogroups.com, "Duane"

<macastronomer@...> wrote:

I'm pretty far along in this game to be asking

about simple rules, but this one's got me 

wondering...

I forget the exact model... but I've got a DMK

Color camera with the .AS after it.

Do I need to use the IR filter on planets and the

Moon?

I didn't think I needed to with color web cams

(like the Fire-i) but I was wondering about 

the 

.AS (I thought that was just a firmware change but

not sure).

I've tried it both ways and didn't see much

difference, but then again the nights I was 

out 

didn't present me with the best skies.

In any case, easy question for those who know.

Thanks,

Duane

Mine`s a IS DBK 21A F04 AS colour camera. I wasn`t

aware there was a way of turning 

off the IR filter( which is what the AS in the

serial number stands for I think). I thought the 

DMKs were mono cameras hence the "M" in the serial

number. Yours Mark.

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