Posted by Stan Rose on December 18, 2007 at 2:01 PM
I first tried this viewing technique a couple decades ago, but this is my first attempt at actually creating a stereoscopic image. Didnt really research the technique beforehand, and after the fact found that most who dabble in this stuff tend to go for a stronger bg-fg seperation. But my goal was to try to create even depth. I doubt ill do much of this in the future, but it was a fun and worthwhile exercise, taken at GOG last week after the snow. Love to hear how many of you can see this clearly in 3D--i can immediately, but ive had a little practice.
Will also post a shot on ESS.
For those of you unfamiliar with the crosseye technique, here's the directions:
(CAUTION: If this is new to you, do not try to long or hard or you'll strain your eyes!)
Sit a comfortable distance from the monitor. Look at the image (it may help to focus on an imaginary distant point) and slowly cross your eyes. At first, you'll see four images. Continue crossing your eyes until the middle two merge and form a single, third, image. The key is to achieve or lock-in sharp focus on the middle third image, then you'll see it in 3D. Have Fun!
Posted by Tim Mulholland on December 18, 2007 at 4:42 PM
Stan,
I'm very thankful that someone has posted a 3-D image! I've been doing research & shooting for about the past year. Personally, I've been exploring lenticular images. I started with a Nishika and have had a little fun with it (but, the lenticular prints are expensive). Now, I've figured out how to do decent shots with my digital camera and a Manfrotto slide bar, and then manipulate the images in PS, etc.
It's fun and adds a new depth to the experience - pun intended!
Tim!
Posted by Mel Ladewig on December 18, 2007 at 4:52 PM
I can see the three images, but can't focus the image after crossing my eyes. Maybe something to do with my glasses (which coincidentally have terrible CA). Bummer. It sounds pretty cool Stan.
Mel-
Posted by Pam Colander on December 18, 2007 at 6:46 PM
Great depth in the shot Stan! How did you do it?
Pam
Posted by Scott Fricke on December 18, 2007 at 8:41 PM
I can see the 3d image, that's pretty cool! Can you give a brief description on what you did?
Posted by Don Grall on December 18, 2007 at 10:01 PM
I just saw Beowolf in 3D, which was very entertaining but it wasn't as dramatic as some 3D presentations I saw in Disney World about 10 years ago. This simple demonstration is really cool and very interesting in how it is accomplished. With Beowolf you needed special glasses and didn't have to cross your eyes which is definitely more comfortable but not necessarily better quality-wise.
Posted by Nick Moore on December 18, 2007 at 10:31 PM
I can kind of see it, but I need to rest my eyes before I try again :).
Photogrammetry is something used in my profession (Engineering/Surveying). I remember studying the principles and methods behind it at university; we used HUGE machines with alot of wheels to view stereo images for mapping purposes, and also used special cameras to obtain the images. These days the method for aligning the images exactly (which is esential for mapping) is computerized!.
This link is to what looks like a great little affordable stereoscope: http://www.pokescope.com/pokescopeinfo.html
Posted by Lance Warley on December 19, 2007 at 8:14 AM
This would have worked for me much better in 1969.
Posted by Stan Rose on December 19, 2007 at 11:13 AM
Hey, there were a lot of good ideas in the 60s!
Pam & Scott--i just winged it, didnt really plan it carefully. All that was required was to take two seperate shots from slightly different angles. I used about 3 or 4 distances from about 2-10 feet apart. In theory, the distance between the shots should be 1/30th the distance to the nearest object to be seen. The key is to get equal exposure and no vertical parrelax. I think the main challenge is to find a good subject!
Discussion
8 repliesWill also post a shot on ESS.
For those of you unfamiliar with the crosseye technique, here's the directions:
(CAUTION: If this is new to you, do not try to long or hard or you'll strain your eyes!)
Sit a comfortable distance from the monitor. Look at the image (it may help to focus on an imaginary distant point) and slowly cross your eyes. At first, you'll see four images. Continue crossing your eyes until the middle two merge and form a single, third, image. The key is to achieve or lock-in sharp focus on the middle third image, then you'll see it in 3D. Have Fun!
I'm very thankful that someone has posted a 3-D image! I've been doing research & shooting for about the past year. Personally, I've been exploring lenticular images. I started with a Nishika and have had a little fun with it (but, the lenticular prints are expensive). Now, I've figured out how to do decent shots with my digital camera and a Manfrotto slide bar, and then manipulate the images in PS, etc.
It's fun and adds a new depth to the experience - pun intended!
Tim!
Mel-
Pam
Photogrammetry is something used in my profession (Engineering/Surveying). I remember studying the principles and methods behind it at university; we used HUGE machines with alot of wheels to view stereo images for mapping purposes, and also used special cameras to obtain the images. These days the method for aligning the images exactly (which is esential for mapping) is computerized!.
This link is to what looks like a great little affordable stereoscope:
http://www.pokescope.com/pokescopeinfo.html
Pam & Scott--i just winged it, didnt really plan it carefully. All that was required was to take two seperate shots from slightly different angles. I used about 3 or 4 distances from about 2-10 feet apart. In theory, the distance between the shots should be 1/30th the distance to the nearest object to be seen. The key is to get equal exposure and no vertical parrelax. I think the main challenge is to find a good subject!