This was taken last night. Afocal, Canon a590is, with 10 inch Skywatcher Dobsonian (non goto, no tracking either!), 6mm TMB II with televue 2x barlow, and 4x optical zoom. Does that make a magnification of 1600?
Stacked 20% of 2082 frames. I didn't think I had the patience for another go, but the seeing seemed pretty good last night. It took me about 40 minutes to get 2082 useable frames. I am thinking of the lazy susan dob mod to make it easier to move the tiny increments that are required!
This was taken last night. Afocal, Canon a590is, with 10 inch Skywatcher Dobsonian (non goto, no tracking either!), 6mm TMB II with televue 2x barlow, and 4x optical zoom. Does that make a magnification of 1600?
Stacked 20% of 2082 frames. I didn't think I had the patience for another go, but the seeing seemed pretty good last night. It took me about 40 minutes to get 2082 useable frames. I am thinking of the lazy susan dob mod to make it easier to move the tiny increments that are required!
really nice pic! as discussed on another thread, this photo has inspired me to have a crack!
it is amazing what one can do with a point and shoot these days.
just to be a PITA....
the 590 has 4x optical zoom, but starts at a wider angle than your eyes.
the 35mm equivalent is 35-140mm - and your eyes see roughly the equivalent of 50mm...
so max magnification on this camera is approx 2.8x.
Sharkbite - you're right, I had to take a lot of clips with the planet moving through the field of view.
I used avidemux to join all those clips into one long clip, and then edited that long clip to remove all the unusable frames (those that were obviously blurred, or not fully in the frame).
I then used a program called Castrator to centre and crop the resulting footage. Next I used Autostakkert to stack the images.
I did not use Registax to stack the images. I only used the wavelets function in Registax to process the stacked image from Autostakkert.
Finally I used image analyzer to adjust the white balance, contrast and brightness. I also sharpened and smoothed it.
All the above is in respect of the image in post 3 of this thread. I did far less post processing of this image than I did for any of the previous images that I posted.
At that magnification manipulating the dob mount so that Saturn drifted through the field of view was very very difficult. IIRC the longest usable clip was only 5 seconds, and most were shorter. There were very many clips of blank space!
Pinwheel - I don't have any settings for video on that camera (other than choosing what resolution it records in). I recorded it in the highest resolution available, 640x480 (at 20 fps), with 4x optical zoom.
Sharkbite - thanks for explaining the maximum magnification! I suppose that means the magnification was 1120x?
I'm looking forward to getting my first image of Jupiter!
since the camera shuts down after a minute if you leave it,
and memory is cheap...
i just left the thing running, and cut out the blank or useless bits
using freemake.
Registax had a cow at this - would only track for one pass.
tried castrator on the weekend - what a difference!
got to use the whole 2-3 minutes of "useful" video...
unfortunately the weather has not been as good since the night i dd the 1st effort, so the results were not as good - but like you o can't wait for jupiter to pop by...
Now you mention it, the first time (for the pics in the 1st Saturn thread) I took a whole series of clips and joined them, for the 3rd Saturn I left the camera running and got one long clip (about 25 minutes IIRC) which I edited in avidemux!
It was definitely much easier that way - my camera also shuts itself off after one minute. Infuriating, when I had just about got the telescope in position for a pass through. Also, when I turn it back on I have to go through the rigmarole of setting it back to manual focusing and then refocusing it.
