From: Mark Gaffney <markgaffney@mac.com>

Date: June 22, 2008 5:47:11 PM MDT

To: Astro_IIDC@yahoogroups.com

Subject: OTA...

The reason for choosing the OTA (attached)

at this stage is a concern for the weight of cameras riding on the Easy Guider (which I`m told could be an issue) also a worry about cables twisting, as the Easy Guider is rotated on it`s axis to find a guide star or pulling the assembly sideways when slewing the scope. With the OTA I`d be guiding on the same object being photographed or close to, isn`t this the case? I`m also a bit doubtful about the process of finding a guide star with the OAG, so at variance with the object of interest. Mark.

On 23/06/2008, at 5:03 AM, Mark Gaffney wrote:

Hi Milton, I was wondering if you`ve had a chance to use the 1032x 776 version of the

colour Flea 2 camera. I was thinking of the possibility of buying one of these early next year. I

notice the pixel value on the higher resolution model drops to 4.65x 4.65 micron pixels

compared to 7.4x 7.4 on the 640x 480 model. It`s an extra $100 USD for this model & Point

Grey also tack on $100 for a Development kit which has a IEEE 1394 b-a cable amongst

other things. I understand they`re transitioning away from the Flea camera now? I`m told PG

don`t sell nosepieces so I`m hoping one from Imaging Source will do the job. With the

Unibrain Fire-i camera in the meantime, I was thinking of buying one of these nosepieces &

widening the opening to accomodate the C-mount thread (as Jim Chung did with a penknife I

understand). I`m thinking at the moment I`ll go with a $215 Orion Short Tube 80 Guide

scope to begin with & leave the Lumicon Easy Guider OAG til later perhaps.Yours, Mark

Gaffney.

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