RE: [APML] Focusing and temperature change issues during an exposure- advice wanted

[Alan Voetsch <critter12952@yahoo.com>]

Hi Greg,

--- Greg Hartke <ghartke@earthlink.net> wrote:
> The Optec TCF (which means something like
> "temperature compensated focuser")
> is reputedly an excellent device.

I know, I've heard of it on the SBIG list.

> Dick Greiner was
> involved in some
> prototype testing of this device.

Good, I need a hands on report on it.

> Keep in mind it isn't cheap but it does the
> job.

I know, it's almost scary.

Thanks,
Alan

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