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Cubix Rube
13th of April 2009 (Mon), 21:40
So,my son in law (Calichef80) and I set up our 20Ds right next to each other on tripods, and took some dynamic stereo pics. Some worked out better than others, but I definitely feel like we're on to something. Let us know what you think!

This is me flipping a roll of paper towels

http://farm4.static.flickr.com/3650/3439522815_6710ece100_o.jpg

Here's Chris pouring a beer (Budweiser...YUCK!!)

http://farm4.static.flickr.com/3628/3440333102_dce3c37bbd_o.jpg

My nephew, Cody, doing a back flip on the trampoline

http://farm4.static.flickr.com/3364/3440333690_355c27dfd4_o.jpg

Bendel
13th of April 2009 (Mon), 21:46
Pictures on the right are NOTICEABLY sharper, which is very distracting.

Balliolman
14th of April 2009 (Tue), 14:51
I like the clarity and depth of #1. :) There is a pronounced window violation which is easily correctable.

#2 Nice through the window elements though the arm on the left chip causes a window violation. The stereobase was too wide hence the hyperstereo effect noticeable particularly in viewing the arms. Still looks pretty good. :)

#3 unviewable. If a parallel pair it is too big to freeview.

DDCSD
14th of April 2009 (Tue), 15:52
#1 is great! I'm wondering if #3 may be flipped?

Crazy Horse
14th of April 2009 (Tue), 19:42
Number 1 was great.

The tree ruined Number 2 for me. It didn't merge.

I didn't get the 3d effect of Number 3.

Thanks for the post!

Cubix Rube
14th of April 2009 (Tue), 21:12
Thanks for all your comments! I agree that #1 is the best, and while I can get the others to merge, there's definitely something wrong. I must admit that I threw these things together in minutes, and paid little attention to RH/LH placement. The trick with these was to time the shutter clicks exactly with each other. Much easier said than done. Obviously Chris was better at it than I was.
This was our first attempt at stereo shots using two cameras, as opposed to taking a pic, moving the camera and taking another. Now I'm curious to see if there is a tripod head that will hold two cameras at the correct distance, as I recognize the "hyper stereo" effect. That would be very cool.
I don't see the noticeable sharpness difference, however, but will keep that in mind on future experiments...

Bendel
14th of April 2009 (Tue), 21:39
Maybe its a difference in depth of field. The one that had bothered me was the second picture. If you look at his face and shirt in the right one compared to the left, you will see it.

Tomi Hawk
14th of April 2009 (Tue), 21:54
Maybe its a difference in depth of field. The one that had bothered me was the second picture. If you look at his face and shirt in the right one compared to the left, you will see it.
Totally agree .. and in the last 2 images, the trees in the BG are much sharper in the image on the right .. perhaps one of the 20D's was set on a parameter that might be set up differently? I dunno .. jus a guess if it indeed isn't a DOV issue as Bendal mentions .. but the images on the right are far sharper IMHO.

But cool idea .. ;)

jsvphoto
14th of April 2009 (Tue), 22:52
I think they would be much more interesting if the perspectives were more distinctly different. As it is, they look so similar it's almost as though you've placed the same image with two slightly different crops next to each other...

DDCSD
14th of April 2009 (Tue), 22:57
I think they would be much more interesting if the perspectives were more distinctly different. As it is, they look so similar it's almost as though you've placed the same image with two slightly different crops next to each other...

They're meant to be viewed by crossing your eyes. When the images merge, you will be viewing the image in "3D".

Cubix Rube
14th of April 2009 (Tue), 23:53
OK...Now that you mention it, there does appear to be a slight (at least to me) difference in sharpness on #'s 2 & 3 from the RH to the LH images. I'd say we can all agree that the 2nd and 3rd ones are problematic on several points, but I still think the 1st one came out pretty well. I'm definitely gonna try more of this. As a matter of fact, I may even ask the guys in our tool room at work to make me an adapter for my tripod that will hold both cameras 4" apart, and at the same height, so I can eliminate camera position as a potential issue.

Stay tuned, we WILL be trying to perfect this!:cool:

DDCSD
15th of April 2009 (Wed), 00:17
The third one is definitely flipped (reversed).

Here it is the right way:

http://derekcecil.smugmug.com/photos/512927626_RLNF8-O-0.jpg


The debris flying up on the tramp is pretty cool. Legs are just a bit off and a little distracting. pretty nice depth, especially the fence and trees.

Balliolman
15th of April 2009 (Wed), 06:17
Even if one chip is softer than the other the brain when fusing a stereo tends to concentrate on the sharper image, consequently unless blurring is strong, there is little or no noticeable retinal rivlary when freeviewing.

ImagePree
16th of April 2009 (Thu), 14:38
#1 is great!
#2 not so much due to the framing, very very hard to keep the view going. In fact, it gave me slight headache.
#3 edited version is also great.

Nice job! I learn something everyday.