View Full Version : Octagon35 footage


Justine Haupt
August 31st, 2006, 09:27 PM
I uploaded some footage for the Octagon35 I made (free plans will be published within a few months, hopefully)

This is still test footage... I've still yet to completely eliminate the vignetting, but I'm very excited about the image quality so far. A soft image is the last thing I think I have to worry about.

EDIT: Some trees and my cat were the only subjects I had yesterday, so apologies in advance for the content (and the camera work, for that matter).

The first one is a much smaller file and the quality is fine... second is sharper.

http://www.particleproducing.com/videos/o35 test footagecc.wmv
http://www.particleproducing.com/videos/o35 test footagecc.mpg

Boica Zsolt
September 1st, 2006, 01:29 AM
Looking good Justin. The garden where the test footage was taken is shadowy, because the footage is a bit dark?
Overall it has a good image. Love the scenes with the cat :)

Toenis Liivamaegi
September 1st, 2006, 01:44 AM
Sweeet sharpness and CC is awesome.

Justine Haupt
September 1st, 2006, 09:10 AM
Looking good Justin. The garden where the test footage was taken is shadowy, because the footage is a bit dark?
Overall it has a good image. Love the scenes with the cat :)

That's pretty much it... it was late in the day and I didn't want to increase gain or lower the shutter to 1/24.

Sweeet sharpness and CC is awesome.

Thanks!

Frank Hool
September 1st, 2006, 10:10 AM
I've still yet to completely eliminate the vignetting, ...
Footage is good. What lens You were using? I am pretty sure that given vignetting is drawn purely by lens. So You got nothing to do to improve that issue.
Another thing is hotspotting and this is purely seen while camera does fast movements.

Louis Demontez
September 1st, 2006, 04:43 PM
what components were you using here, including your video camera

Justine Haupt
September 1st, 2006, 09:01 PM
Frank, it was the f/1.8 50mm Canon FD lens. I was able to reduce the vignetting more with other types of lenses for the condensor, but the one I have in it kep it the sharpest. I have some more on order, we'll see how they work. Could you comment more on the hotspot? On the lens? All input would be appreciated.

Louis, the camera is a Canon XL2. The adapter uses a spinning ground glass (Thor Labs 1500 grit), image flipper (1st surface mirrors), and a 28mm Canon FD lens is the relay.