Comments

Really the Parque del Retiro, in Madrid, is a very pleasant place to walk and also to shoot s3D pictures.. :)

You are, Randy, really a tremendous observer.

You are right. Now I also see in that s3D photo a bit of miss sync, and therefore now I think my first explanation was correct:


“Making street photography it is very easy to rush, shoot without sufficient previous focus, due to the haste and that the audition of the synchronization sound is not easy and that we are more aware of the photographied scene than of the green visual image in the screen that confirms that the focus is O.K.”

Thanks a lot for your comments ! :-) :-) :-)

I brake for flying birds.

Very Nice!

Don't you hate it when you go to a historic, beautiful structure on a vacation and it's under repair? Still, nice shots!

Love it!

Beauty!

England has those?

The water looks great and the canal scenes, in general, make me want to see that, in person!

Cool tree sculpting and photos of them!

The reason the (slight) miss sync is obvious on the lead figure, and not so much on the others is because he is at the border of the light and shadows. The difference is not caused so much by his movement, but by the movement of the tree leaves that give a different shadow pattern between the left and right images. You can observe this same miss sync in the left foot of the middle figure in blue. It's not so obvious there because the whole figure is in shadow.

You know that perfect synchronization is only possible by following the two known steps:

-First, half pressure, focus.
-Second, full pressure, shoot

In fact there were some failures in attempts to synchronize old equipment, such as Samsung NX1000 despite the fact that the firmware allowed a perfect sync, as was demonstrated 2 years later. Always follow the ritual of those two steps is, then, very important.

But making street photography it is very easy to rush, shoot without sufficient previous focus, due to the haste and that the audition of the synchronization sound is not easy and that we are more aware of the photographied scene than of the green visual image in the screen that confirms that the focus is O.K.


But if that had happened in the photo that you comment then the differences would have been greater and also affected the rest of the scene.

Perhaps the small difference that you point out is due to the different luminous incidence in both lenses because in fact the rest of the people in the background have a faster movement: they walk and they have not stopped to observe.

Thank you very much for your comments! :-) :-)


On the other hand:

I have proposed in the group 3D photo of Yahoo to do several test to assess if in the current Sony equipment, mounted side-by-side, it is possible to compensate the excess of stereobase for made normo stereo, modifying the focal distance, according to the Gerhard Herbigg golden rule:

https://www.stereoskopie.org/en/stereoskopie-2/golden-rules/shooting-rule.html

stereo base times focal length < Near point distance
(all values using mm).

Please see following two pictures already uploaded by George:

Image 1: http://phereo.com/image/5beddcd8e7e564e71d000058

Image 2: http://phereo.com/image/5beddcebe7e564831a00005e

Bit of miss sync on this one. The moving shadows on the man in the front are distracting.

Thanks Radomir, I just try to learn a little more each day and to innovate when possible. :-)

very nice photos as usual

There is a guest post about the possibilities of the cable manufactured by Sony (VMC-MM2) for the synchronization of its current Sony Alpha cameras, and its usefulness in stereo photography:

https://www.sonyalpharumors.com/jose-barbera-marti-using-the-sony-vmc-mm2-cable-for-sony-alpha-rigs/

Hello Randy

I have been uploading these "street photo" photos this morning trying to show in the Yahoo Group 3-D photo (https://groups.yahoo.com/neo/groups/photo-3d/info) that an excess of stereo base in the Sony Alpha rigs can be compensated by decreasing the focal length of the lens, acording to the first golden rule of Gerhard Herbig (modified):

Focal length * 10 = distance of closest object / stereo base (all parameters in millimeters or any other unit of length)

For that reason in that last dozen of photos uploaded there are photos shot using NEX-5 rig, (as joke named by me w55 cam :- ), as homage to Fuji W3 but only whit finger sync) mixed with others s3D pics shot with my favorite rig, the twined A6000 cams + Sony VMC-MM2 cable.

I am glad that you are able to distinguish the photos shot with the NEX-5 cams from those shot with the Sony A6000 rig. :-) :-) :-)


Beginners in s3D photograph would not have been able to distinguish that, as you, only visually, and maybe they (of course, not all of us, regular users of Phereo) would have needed a quantifying test with great acuracy, as the smart photo sync test developed by Barry Aldous and described in the latest issue of the journal Stereoscopy edited by the ISU, International Stereoscopic Union.

I have been trying to focus on the stereo base and depth, in both Sony Alpha rigs (NEX-5 and A6000) and only secondarily the good syncronization of the current Sony Alpha rigs, already demonstrated in previous albums:

http://phereo.com/album/5b2d7270e7e564752f0000d3

http://phereo.com/album/5b655fd5e7e564841c0000e0

http://phereo.com/album/5bcd974c8884287b4e000002
Thus...

Sorry for the inconvenience. Maybe I should have warned about that.

Many Thanks, Maecky. Much appreciated

Thaks a lot, Radomir. :-)

This has a miss sync as do a couple of other of the pictures in this series. You were getting perfect sync before, what happened?