Celestron C11 Orion 8" Newton Astrograph Orion 180mm MCT Explorer Scientific AR152 Celestron NexStar 8SE Orion ST80a Orion StarBlast 6i IntelliScope Orion BT-100 Celestron CGEM Stellacam II (video) Stellacam III (video) Samsung SCB-2000 Modified Astro-Video Systems Advance MKII Video Camera Orion G3 Color CCD Canon 6D DSLR for astro imaging
More stuff than I need; Not as much as I want
(Main scope: CPC800/Mallincam Color Hyper Plus)
Mason & Hamlin BB 2140 mm (grand piano)
Westchester Amateur Astronomers
Quote:How is the pointing accuracy? Might you be able to dispense with the flip mirror? Or do you have it in place so that you can also observe with an eyepiece?
I ask because the focus is currently a bit farther behind nominal, meaning your working f/ratio will be longer than f/10.
Have you tried a focal reducer? It's nice certainly for the larger objects, and has the additional benefit of reducing integration times.
Quote:The flip mirror is obviously going to limit the altitude that the scope can attain, which will make you miss many wonderful objects. I agree with Glenn: focal reduction to f/5 with an inexpensive 0.5x reducer like the Antares and a regular diagonal. Rely on the scope's accurate go-to's. Objects will be brighter so you will need less integration.
Quote:Nice looking set-up, except for the cabling.
Keeper of the Swamp Gas Observatory "This R2 unit has a bad motivator" AR127, CG4 CGE1100 1984 tasco 60mm 49TR F/13.3 refractor 1976 Vixen Polaris 80mm F/15 refractor Denkmeier Big Easy BV'er Astro-Tech Titan 38mm 70* Astro-Tech Titan 20mm 70* Astro-Tech SR6 12mm 60* Meade MA25mm Jap. Meade MA9mm Jap. TMBpII 5mm ES 1.25" FX
Quote:I also have Nexstar 8 SE.As a starting point I consider using common Canon video camera(Vixia HFM41 which is light but with good sensitivity).Could you give me some advice on using Canon video camera?
Quote:John, I would like to know how are the images with the AR?, I have the AR127 and was thinking about getting a astro-camera, Am I correct to assume that I wont need a focal reducer since the scope is F/6.5? also, How long is your normal exposure length?