Quote:Quote:Looking at the QHY9M it states on their website that the 2" filter wheel with RGB filters are only included as a part of a special deal available until March of 2010. Well, since that date has long since passed, I wonder if it's still going on or they just haven't changed the website. Worth a phone call to see. I actually didn't see that on the website though. Are you looking at www.astrofactors.com?
Quote:Looking at the QHY9M it states on their website that the 2" filter wheel with RGB filters are only included as a part of a special deal available until March of 2010.
Quote:Apogee and FLI are the top tier vendors. I'd say QSI is next, then SBIG. The rest... are below (I'll get into trouble with wolfman again for this, haha).
There is a 2-year warranty on the camera and lifetime warranty on the vacuum-sealed CCD chamber. If you look at the price of the FLI ML8300 for example (or the Apogee Alta F8300) compared to the equivalent SBIG, a $500 price premium is ridiculously low.
But then again.. if you think that a QHY or ATIK is equivalent to an Apogee or FLI.. then that's great!
You don't see folks like Rob Gendler or Jason Ware tooling around with ATIK's though..
Scopes: 190mm SW Mak-Newt @ f/5.3 & 90mm SV Raptor Triplet @ f/7Cameras: Atik 383L+ mono w/ EFW2 FW with Astrodon filters & Canon XSi 450D (Modded)Mount: Astro-Physics Mach1GTO mount guided with QHY5 KWIQ guiderSoftware: Sequence Generator Pro; PixInsight; Photoshop CS5Best investment: Stone Garden Observatory - Bortle 4 (Green)
Warren - Stargazing since the 60's! Scopes: ETX-LS6, ED80T, AT6RC, Lunt LS60T, C9.25 Mounts: Atlas EQ-G, Vixen Portamount II Cameras: Atik 314L+,DMK31AU03,SSAG, ASI120MC Filters: Astrodon LRGB, Orion HA, SII, OIII Acc: Orion 5 place Filter wheels x 2, Flatman Primary Imaging site: Bortle Scale Class 6 Red Zone http://astrobin.com/users/rigel123/
Quote:warranty on the vacuum-sealed CCD chamber
Quote:for me though, dealing with the incessant dirt on the sensor and frosting issues on my QHY8 has soured me on the brand. but that's just me.
Quote:the qhy9m has a heated cover glass, AFAIK. not a sensor heater..
Quote:Oh my gosh, I just looked up narrowband filter prices. I can't believe I hadn't checked out those costs before. For Astronomik, the 1.25" is $200 and 2" is $450 for the 6nm narrowband. Wow on the 2" price. The 12nm filters are quite a but less... would you all recommend against them? Since the 6nm lets in a smaller wavelength of light, would the exposures be much longer?Out of curiosity, I checked out the Astrodon pricing and it's about double the Astronomik. I had no idea how expensive these filters are. That can play a definite role in my decision now.If I get one of the sony cameras, I know I can use 1.25 as stated above. But would they mount at the front of the nosepiece, or just in front of the sensor window?
Quote:Thanks Warren. Good to know. Orion filters are quite a bit less money. Do you find that you have to refocus between the Astrodon filters and Orion filters?