2 replies to this topic

[GTom]

Taking a significant step in focal length, I would like to invest in an OAG setup. It should serve a c14+starizona 0.63x system.

So far I was eyeing an Altair GP-cam3 178M, a camera that I could use elsewhere when not guiding and a large-prism ZWO OAG-L. Should the Altair camera work with the ZWO OAG?

[michael8554]

Probably.

 

But the 178M 7.34mm x 4.92mm sensor is much smaller than the 12mm x 12mm prism, an 8mm x 8mm prism OAG would do.

 

And the tiny 2.4um pixels will give a very small pixel scale.

 

Of course you could Bin, but why not start off with a large pixel guidecam ?

 

I't not clear to me from the ZWO site, but it looks like the OAG-L bolts onto a ZWO Filter Wheel instead of having the usual M threads, is that your imaging setup ?

[GTom]

Probably.

 

But the 178M 7.34mm x 4.92mm sensor is much smaller than the 12mm x 12mm prism, an 8mm x 8mm prism OAG would do.

 

And the tiny 2.4um pixels will give a very small pixel scale.

 

Of course you could Bin, but why not start off with a large pixel guidecam ?

 

I't not clear to me from the ZWO site, but it looks like the OAG-L bolts onto a ZWO Filter Wheel instead of having the usual M threads, is that your imaging setup ?

Very good points both, I have the Baader UFC filter drawer. The small pixels are just "happen to be" there: I plan to use the smaller camera for planetary work when not guiding. I'll check for a threaded 8mm prism unit