DSLR-Video for Lunar Photography

(12-01-30)

 
 

I recently got a newer DSLR, a Pentax K-5, in supplement to my trusty K200D, (now past 50.000 actuations).

 

I did not make my choice based upon the camera's option to record video, but now that I got that as well, I thought I should see, if I could get any use of it.

 

Further, there a still many who refuse to believe that atmospheric 'seeing' conditions may be the cause of their less than sharp lunar photographs.

 

So, on a windy January evening with some thin clouds and haze, freezing temperatures and lots of rising hot air from roofs and chimneys i dragged out my little 90 mm f/10 scope with 2.5X Barlow Lens, my equatorial mount and my brand new K-5 to make a few minutes of movie - 1280 x 720 pixels at 25 frames per second - from the balcony.

 

Extracting a smaller bit of video with some 600 frames (579 to be exact) it is easy to demonstrate the effect of seeing. Within 10-20 frames I found

 

Some good (click on images to see larger versions):

 

 

Some so-so:

 

 

And some definitely horrible:

 

 

And, as said, all on a system untouched by human hand and yet constant changes in quality within less than a second. Mission completed.

 

But now I had those 579 video frames, so why not take it one step further and see, what Registax would say about these:

 

 

Indeed, Registax' automatic "quality control" finds 421 frames useable and here is the final result:

 

 

Not too bad on a miserable (astrophoto-wise) evening. Next time I shall try Full HD!

 

 

 

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Copyright 2012 - Steen G. Bruun