From: "Mark Gaffney" <markgaffney@mac.com>

Date: March 24, 2008 8:48:52 PM MDT

To: Astro_IIDC@yahoogroups.com

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

--- In Astro_IIDC@yahoogroups.com, Alan Friedman <alan@...> wrote:

To my knowledge, none of the TIS cameras shipped with a lens. The .as  

designation positioned the non-shutter/IO models for market to the  

astronomy community. I don't believe there are any differences in the  

hardware or firmware for these cameras than in the other 21AF04 models.

Milton probably knows more about this...

best,

Alan

On Mar 24, 2008, at 7:33 PM, Perry Holcomb wrote:

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

My confusion arose because the DFK 21A F04 AS (which I thought the Astronomy 

shop had preserved for me whilst I saved for it) apparently did have an IR cut filter. The 

DBK model I ended up with dosen`t! Mark.