Author Topic: Mars  (Read 11381 times)

escho

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Mars
« on: May 03, 2014, 08:55:56 PM »
One last pic from my astronomical shoots, using mlv-video: Mars


img_0001 von seescho auf Flickr

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.

Edgar

dmilligan

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Re: Mars
« Reply #1 on: May 03, 2014, 09:15:57 PM »
that is incredible!

Danne

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Re: Mars
« Reply #2 on: May 03, 2014, 11:29:01 PM »
Wow. Is that planet mars? Amazing

g3gg0

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Re: Mars
« Reply #3 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 :)

escho

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Re: Mars
« Reply #4 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.

Edgar

vk4tnt

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Re: Mars
« Reply #5 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?
Cheers,

Renato

escho

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Re: Mars
« Reply #6 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.)

Edgar

kihlbahkt

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Re: Mars
« Reply #7 on: May 08, 2014, 12:22:14 AM »
Thumbs up. Great image
600D x2

escho

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Re: Mars
« Reply #8 on: October 09, 2015, 11:07:55 AM »
This picture is on my websit, too:

https://seescho.wordpress.com/2015/09/27/mars/

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

Edgar