Altair GPCam2 290C

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Altair GPCam2 290C

Postby Jersey Skywatcher » Sat Sep 23, 2017 6:47 pm

I have a very modest Sky-Watcher SkyMax-127 with SuperTrak Alt-Azimuth Mount, which I greatly enjoy. I am wondering if the Altair Astro GPcam2 290C would be a worhwhile purchase or if the telecope's limitations would make it a total mismatch and a waste of money
Jersey Skywatcher
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Re: Altair GPCam2 290C

Postby Gfamily2 » Sat Sep 23, 2017 10:50 pm

It depends on what you most want to image.
The camera should work well on planets and the moon, which is well suited to the 127 Mak scope.
The fov of the scope is only a few degrees, so wide field is out of the question anyhow.
Scopes: Meade 8" SCT, Skywatcher 127mm Mak, Raffle winner of SW ST80
For imaging: Pentax K5, Asda webcam, Star Adventurer (new toy)
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Re: Altair GPCam2 290C

Postby The Man with the Corrugated Iron Roof » Mon Oct 02, 2017 9:50 pm

A Skywatcher Skymax 127 is not modest. It's an <expletive> good telescope and I consider it one of my best purchases. As far as lunar images are concerned, I use the Bresser Electronic Eyepiece for close-ups and a DSLR for full-disc shots.

OK, the long focal length is a disadvantage for some shots but you can always get a focal reducer.

If I have a concern, it is the Supatrak mount. I don't know the details but for long exposures the field rotates. Only trial and error will tell you the maximum exposure that you can use before stars appear as arcs. For objects near the pole, field rotation is lea of an issue and the worst case is near the celestial equator.
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