DBK 21 Imaging
Posted 26 December 2012 - 02:39 AM
Posted 26 December 2012 - 03:55 AM
Posted 26 December 2012 - 04:11 AM
Posted 26 December 2012 - 04:19 AM
The hardware you have is certainly capable of 60fps. Again, curious about the software.
It occurs to me that the settings I gave you are for a 3x barlow, not a 2x. I expect the gain value should be substantially lower than 800.
Posted 26 December 2012 - 09:24 AM
Posted 26 December 2012 - 09:39 AM
You probably should be able to set the gain between 700-900 and you will start to see a sharper edge to the planet.Then move your focuser a VERY small amount and recheck the image and repeat until you have decent focus.
Posted 26 December 2012 - 11:49 AM
Posted 26 December 2012 - 02:10 PM
Posted 26 December 2012 - 02:19 PM
If you're only going to stack the best frames of a 30-second series at 30fps, you're likely to have a very noisy image.
Posted 26 December 2012 - 07:12 PM
As for Bahtinov masks, sure, if you have one, I'd encourage you to try it, but if you don't, you shouldn't feel that you have to get one to obtain good focus. I've never used one, nor felt the need. Focusing does take a bit of practice, but it's not that difficult -- just try it and get some experience.
Posted 27 December 2012 - 02:50 AM
Posted 27 December 2012 - 09:02 AM
Learning how to polar align a mount with good accuracy, and getting enough experience to perform the alignment in a reasonable amount of time is pretty much a top fundamental skill needed for any AP, either DSO or planetary.
As far as IC Capture, here are my settings from a run on Jupiter the other night using my DBK21 and Meade 12 SCT on an Atlas.
...and the goods...
Note, that I do not debayer the data during capture, and I use the Y800 codec for the .avi capture.
This means I capture raw, B&W, data, and I send smaller data up the USB cable to my PC. I use a standard HP laptop, with USB 2.0, and I capture just fine at 60 fps.
After capture, I use AutoStakkert! 2 for debayering, quality assessment, alignment, and stacking. There's a ton of info on AS!2 over in the solar system imaging forum. Just do some surfing over there, or perform a search.
Posted 27 December 2012 - 02:18 PM
There is a piece of software that will do some limited guiding while capturing -- it's called FireCapture, but you'll need to be reasonably well polar aligned for this to work anyway. I would encourage you to work out the basics before trying FireCapture (if you are so inclined) in any case, as that's a whole different set of problems to work out before that's going to work well for you.
Posted 27 December 2012 - 02:53 PM
Posted 27 December 2012 - 04:25 PM
You definitely need a PC with some processing power -- I've got an older Intel Core 2 Duo laptop, which I find is just adequate to keep up when capturing. My processing happens on a quad core. While not required, it makes things a bit more reasonable.
Jupiter is really well placed for northern hemisphere observers right now. It won't always be this good. We'll be spoiled for the next few oppositions, but then it will be poorly placed for us on the other side of its 12 year orbit, like Saturn is for us now. Enjoy it while you can!
Posted 27 December 2012 - 05:01 PM
Posted 27 December 2012 - 05:22 PM
Experiment, experiment, experiment. That's the only way to get to where you want to be. Some nights will be much better than others, mainly due to seeing and transparency. You may only get a couple really good nights a year. You're trying to pull out details under a quarter second of arc across - this isn't going to happen every single night you set up, but by making note of what seems to give better results, you'll get there in the end.
Posted 01 January 2013 - 12:50 AM
Posted 01 January 2013 - 02:16 AM
On the plus side, it sounds like you've got the polar alignment part of this down now, so that's good progress.
Posted 01 January 2013 - 02:33 AM
Posted 01 January 2013 - 03:52 AM
You'll see color in Registax, or whatever you're using to debayer. Photoshop is definitely not required.
Posted 01 January 2013 - 04:04 AM
Posted 01 January 2013 - 01:05 PM
Posted 03 January 2013 - 02:38 PM