From: "Tim" <tjp314@pacbell.net>

Date: January 11, 2007 4:54:29 PM MST

To: Astro_IIDC@yahoogroups.com

Subject: connections for long exposures with Pt Greys

Hi Milton:

If you have the chance, could you look up which pins need to be

connected on the back of the Pt Grey cameras to enable exposures

beyond half a second?

For the short term, I simply swapped the connector I'd already done

this to from my Flea to my Flea2.  The Flea didn't have any wires in

the connector, so I made one with a wire tie I had laying around, and

so it's a really small thingy all buttoned up in the connector.  If I

take it apart, I might not see where I had the wire connected.

Thankfully, the Flea2's connector has 3 inches or so of wires coming

out of it, so simply twisting the right ones together ought to do the

trick, I figure, so long as I do the right ones.

So far, the couple nights I tried the fleas out on the Tak mounts,

with the GPUSB plugged in, I was able to get the mount control in

Astro IIDC to link up with the mount famously every time.  

But my guiding wasn't too good, even with the guide speed on the mount

set to the slowest rates.  I suspect that faintness of the guide star

might have been a factor, but I don't know for sure.  I should have

tried guiding (without imaging) using the flea2 with the connector set

up for long exposures, I suppose.  But my brain doesn't tend to think

of these obvious things when I'm tired and freezing my...  Well, you

get the idea...

;o)

-Tim.