Leica M8 Stereo Portrait

[atufte]

My first stereo picture handheld with my Leica M8

Here's how to view it, and please don't give up, it's worth the practice ;-)

How To Freeview Stereo (3D) Images

[pop]

Most interesting. Thanks for showing. Please show more.

However, viewing would be a lot easier if the distance between the pictures was a bit smaller. That, of course, depends on the screen size.

I do not think that the lamp adds much to the image.

There are two bright spots which I find somewhat disturbing, one on the nose and one on the lip.

[atufte]

Originally Posted by pop

Most interesting. Thanks for showing. Please show more.

However, viewing would be a lot easier if the distance between the pictures was a bit smaller. That, of course, depends on the screen size.

I do not think that the lamp adds much to the image.

There are two bright spots which I find somewhat disturbing, one on the nose and one on the lip.

The gap is there to make the white frame similar on both sides when viewed correctly, i have no problem viewing it with the gap?

This was just made as a test, nothing else, just a snap to see if it worked, and it surely did...i think the lamp actually works, because it produces more depth and thus more stereo/3D effect...

This is very interesting, and i will try this in large format, it will be fantastic in 100X150 cm and hopefully give a very different viewing experience...

[melissah]

ok im praticising. but she looks exactly like a modigliani!
which im sure youve heard before.
best,melissa

[leicadig3]

Really interesting.
I used the second method (cross eye freeviewing).

[atufte]

Originally Posted by leicadig3

Really interesting.
I used the second method (cross eye freeviewing).

That's the best one (at least for me) and after some training you can view it as sharp as an ordinary picture ;-)

[leicadig3]

Originally Posted by atufte

That's the best one (at least for me) and after some training you can view it as sharp as an ordinary picture ;-)

Yes.
It is possible to see it clearly and quickly with this method.
It's great.

[allamande]

Most interesting. I don't know how long it takes to train your eyes though. For now, I feel seasick as the image pops in and out of 3D view. Fascinating.

Ece

[pop]

I had a closer look.

On my monitor the distance between the pictures is about 12.5cm. That's roughly twice the distance between my eyes. I have no chance looking at your stereo pair when trying to view them in parallel. The only way I can see the pair as a stereo pic - given my monitor's size - is with the cross-eyed method. As it happens, I find this very easy to do.

However, in order to accomplish the stereo viewing, the left eye looks at the image at the right hand side and vice versa.

Your pair is not arranged this way. Hence, for the cross-eyed gang there will be no stereo experience. I tried swapping the pictures, and everything falls into place. The face will be clearly in front of the cushions if viewed that way.

I hope you do not mind if I enclosed a swapped image below.

StereoLUF.jpg

The lamp does still not contribute anything for me.

[atufte]

Originally Posted by pop

I had a closer look.

On my monitor the distance between the pictures is about 12.5cm. That's roughly twice the distance between my eyes. I have no chance looking at your stereo pair when trying to view them in parallel. The only way I can see the pair as a stereo pic - given my monitor's size - is with the cross-eyed method. As it happens, I find this very easy to do.

However, in order to accomplish the stereo viewing, the left eye looks at the image at the right hand side and vice versa.

Your pair is not arranged this way. Hence, for the cross-eyed gang there will be no stereo experience. I tried swapping the pictures, and everything falls into place. The face will be clearly in front of the cushions if viewed that way.

I hope you do not mind if I enclosed a swapped image below.

Attachment 193775

The lamp does still not contribute anything for me.

Very good observation, i'm still new with this...

But i get stereo/3D from the first one as well (cross eyed), but i agree the swopped around version works better... thanks;-)

[atufte]

A few more, the right way around this time ;-)

(one of my dirty car, and one outside my studio, sorry for the boring test pictures)

[allamande]

Yes, they are both working perfectly now! And your original pair, corrected, works amazingly well. I find the white strip between the images helpful in achieving focus.

Ece

[melissah]

its really wierd bc i have to stare at it along time. then once it comes into focus i can move my eyes around to really look at the image.
very interesting.
so you shooting 2 different frames in succession?
how are you shooting the frames?
or is it a secret?
best,melissa

[likalar]

I've got the volume up full, and still don't hear anything. Nice pictures, though.

Larry

[wilfredo]

Wow, that was totally cool, both images merged after a while of me looking at them cross eyed. The image in the middle was 3d. Very cool exercise!

[wilfredo]

Originally Posted by melissah

its really wierd bc i have to stare at it along time. then once it comes into focus i can move my eyes around to really look at the image.
very interesting.
so you shooting 2 different frames in succession?
how are you shooting the frames?
or is it a secret?
best,melissa

Yes, I had the same experience. Fascinating how the brain adjusts vision.

[pop]

Originally Posted by atufte

But i get stereo/3D from the first one as well (cross eyed)

Yes, you can fool your eyes by feeding them two slightly different pictures, even if it's not a proper stereo pair. Since the eyes detect differences, you get the impression of depth.

Actually, it's the brain, not the eyes. But everyone knows that.

Since someone mentioned stereo audio: you can "enhance" a mono recording by copying the same signal to two tracks and adding noise to each track. The ear hears slight differences and the perceived source of the sound moves to some unspecified place outside of your head.

Originally Posted by atufte

A few more, the right way around this time

Great fun. Additional observations: (1) the stereo pic appears to be smaller than each individual pic of a pair. (2) In stereo, it appears to be sharper as well. Look at the twigs of the trees in the middle distance (~10m). (3) Even the twigs and branches of those same trees appear to be closer than the background.

Originally Posted by melissah

its really wierd bc i have to stare at it along time.

I place my index finger close the the screen over the gap between the pair. I then slowly move the finger toward my nose, taking care to look at the finger and the finger only. I stop moving the finger when both pictures align. Now comes the tricky part: I move my "awareness" away from the finger to the stereo pic. That means, of course, that I change the focus of my eyes without changing their angles. After several trials you'll get quite good at it.

Originally Posted by melissah

so you shooting 2 different frames in succession?
how are you shooting the frames?
or is it a secret?
best,melissa

There are several ways to do this. (1) use a stereo splitter in front of the lens (2) use two cameras (3) move the camera between the shots.

(3) is the most difficult one. I don't see how it can be done with a live model. Congrats.

[Clook]

The table and chairs shot was the best for me. It felt like I could actually look around the objects. I also think the dust on my laptop screen helped a lot for some reason! But then again, I didn't realise it was so dusty until I started looking at these shots.

[ezc203]

Took me a little while to get it, but these are excellent!! Very cool.

[allamande]

Alexander,

You inspired me to get out and give it a try. Here is a view from my garden today. (M8, Nokton 50/1.1). I hope you don't mind my posting these here but I thought they belong here as part of this thread. Thanks for this experiment.



Ece