Wide Field Imaging Setup Testing
Tonight I had one objective while the clouds were parted for a while and that was to test my wide field setup I've been working on.
Celestron CG-5 ASGT
Camera and Lenses:
Canon 1000D DSLR (stock, unmodified)
Canon EF 70-300mm f/4-5.6 IS USM lens
Canon EF-S 18-55mm f/3.5-5.6 Lens
Nikon 50mm f/1.4 50mm manual focus lens
Vixen 7x50 Finder OTA used as a guide scope (160mm focal length @ f/3.2)
Meade DSI Pro for guide camera
Shoestring GPUSB guide port interface
Mount control with Starry Night Pro via USB to Serial adapter through the hand controller
WalterLee Technologies heliFocus belt drive focuser motor
Rigel Systems nFocus controller
Triopo JB-1 Ball Head (10lb capacity and dove tail style mount)
Probably more stuff I could mention too...
Of course there are a variety of accessories required to make it all work
The Test Run
The good news is, it's all working swimmingly. Mount control, guide system, camera control, power management, everything. Sweet! It's ready for a first light... kindof... in my test run within about 15 minutes the dew was solid on my camera lens so I'll be needing to figure out dew control. I have dew control on my other setup and since they will be side by side I might just use some extension cords to send the heat over to the other mount as well. It would probably be better to just buy another dew heater controller, but I might try this first.
The Setup Pictures
The pictures of the setup show the modified version of the mounting that allows the camera to tilt. It raises the center of gravity 3.8" which isn't a big deal with a setup like this which is only a few pounds.
The Screen Shots
I have pictures of the setup to post, but I'm posting the screenshot of everything working with totally fantastic guiding as well.
In Screen Shot 2 it's great how the DSI, in 1 second exposures, can see M51 in the little 50mm guide scope. Woot!
Also in Screen Shot 2, you can see in the background that the 3 minute sub is pretty much nothing because the lens was completely covered in dew. Bummers.