Magic Lantern Forum

Showcasing Magic Lantern => Share Your Photos => Topic started by: escho on May 03, 2014, 08:55:56 PM

Title: Der Planet Mars
Post by: escho on May 03, 2014, 08:55:56 PM
One last pic from my astronomical shoots, using mlv-video: Mars

Technical data:
GSO-RC 10Zoll f8 on AZ-EQ6GT
Converter 5x, resulting focal lenght of the sytem: 10m
Canon EOS600D

MLV-video crop-mode
1/33s, ISO3200
video lenght ca. 3min

decoding video to dngs with mlv_dump
decoding dng to tiff with dcraw (4 color interpolation)
stacking with autostackert 10% from 5500 frames
wavelet-sharping with registax6
post-processing with darktable.

I never had such a result, using a simple mov-video, because, using mov, I´m stacking and sharpening to much compression-artifarkts. This is no problem for a full-HD-video, but it is a problem, if I want to use 1:1 crop mode with high amplification (ISO) and maybe underexposed. MLV-video is raw-video without compression but with much noise at high-iso. But this kind of noise I can eleminate through the stacking.


Title: Re: Mars
Post by: dmilligan on May 03, 2014, 09:15:57 PM
that is incredible!
Title: Re: Mars
Post by: Danne on May 03, 2014, 11:29:01 PM
Wow. Is that planet mars? Amazing
Title: Re: Mars
Post by: g3gg0 on May 04, 2014, 02:07:04 AM
what the hell... WOW!
this one makes me really smile. good work!

btw. if there is anything in MLV processing that would help, please tell so.
i always wanted to add autotracking for detecting an object and moving the crop area.
but i guess you have a tracker, do you?
edit: AZ-EQ6GT okay :)
Title: Re: Mars
Post by: escho on May 04, 2014, 11:15:02 AM
ThankYou, all

I think, mlv_rec and mlv_dump are great pieces of software. What could be made better for such a special case like astronomical-pics? I guess, not very much.

Autotracking through moving the pan area make no sense. This does a stacking-program better with the alignement of the frames. And the tracking itself must be done with the mount. The planet is mooving to quick out of the active area without this external tracking.

If I find a little time. I will try to exand the could pixel fix to work with very high ISOs too (3200 for my 600D). Maybe September this year... Must first learn to work with pointers.

Title: Re: Mars
Post by: vk4tnt on May 07, 2014, 02:29:18 PM
Hi Edgar

Very nice Mars pic indeed! Could you please share with us what build of ML you are using?

Title: Re: Mars
Post by: escho on May 07, 2014, 10:14:28 PM
Hi Renato

The video was from  23. April 2014, so the ML build was from 30. 3. 2014, I guess. (I compile it from ML-sources from time to time.)

Title: Re: Mars
Post by: kihlbahkt on May 08, 2014, 12:22:14 AM
Thumbs up. Great image
Title: Re: Mars
Post by: escho on October 09, 2015, 11:07:55 AM
This picture is on my websit, too:

There you can find a second picture, where I marked important regions on mars. And I added some exifs from the MLV-file

Title: Re: Mars
Post by: mandi007 on February 06, 2018, 03:57:56 AM
Oh God , this is the first time i am seeing mars....super
Title: Re: Mars
Post by: escho on July 26, 2018, 10:12:47 PM
Updated this old post, because the Flickr-Pic got lost