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Bird
Carpal Tunnel
Reged: 08/07/03
Posts: 2621
Loc: Canberra, Australia
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Re: DMK takes on Skynyx 2-0
10/12/07 01:22 AM
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I own a DMK21AF04.as, a Dragonfly2 and a Dragonfly Express. Side by side testing shows a clear win for the Dragonfly2/Draonfly Express cameras, both in sensitivity and lower noise and more features (ie format7 support which I use all the time).
But on the other hand they are 2x more expensive than the DMK. Seems pretty clear that if you want to spend around $US350 then get the DMK, but if you have $US750 to spend then get the Dragonfly2.
It's hard to directly compare the Dragonfly2 and Dragonfly Express, they are very different cameras. My personal opinion is that the Dragonfly Express is a perfect lunar camera cause it can do up to 200fps in capturing, and lunar work is probably the only place you'll get enough light to do that.
For other planetary work the Dragonfly2 is practically the same as the dragonfly express and a bit cheaper.
I don't own any of the usb cameras, so I can't compare them to the firewire ones. Also I use these cameras exclusively under Linux, so I can't compare the Windows software for each of them. My linux capture program (Coriander) works with all firewire cameras.
Jon - there's no reason for sensitivity or noise to depend on the data interface (usb or firewire). If anyone told you otherwise then I'd be suspicious.
cheers, Bird
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Deep Sky Optics 13.1" f/5.5 newtonian,
PGR Dragonfly Express, PGR Dragonfly 2
RedHat Linux + Coriander
http://www.acquerra.com.au/astro/
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