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Re: Panasonic developing world's first intechangable 3D lens for Micro Four Thirds

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1st? LOL!
Welcome back to the 80's... http://www.photo-3d.com/CamPages/pentax.html
Gimmick then gimmick now...
--
Rick Halle wrote:

" Keep in mind that tall buildings sway back and forth so they require faster shutter speeds."
 
Gimmick. Lenses seem too close together for true 3D effect unless subject is really close. would work better with APS-C sensor since it is larger and wider. Probably best to use separate sensors that are spaced like the human eyes.
 
Simon97 said:
Gimmick. Lenses seem too close together for true 3D effect unless subject is really close. would work better with APS-C sensor since it is larger and wider. Probably best to use separate sensors that are spaced like the human eyes.
Click to expand...
I agree. The perfect and simple approach to 3D is to use 2 separate sensors spaced like the human eyes. The perfect playback is to use a separate image for each eye, in a form of a stereo head-mounted display. If you can make the field of view wide enough, the result would be as good as reality itself.
 
Actually, it turns out that spacing the cameras like human eyes produces very boring results. If you hadn't noticed, your depth perception is fairly limited. Objects further than 20-30 meters have very little 3D feel to them. If you are looking for entertaining 3D images, it's usually best to adjust the camera spacing and angle for each particular shot, in the same way that you don't use a 50mm lens for all your 2D shots.
maxnimo said:
Simon97 said:
Gimmick. Lenses seem too close together for true 3D effect unless subject is really close. would work better with APS-C sensor since it is larger and wider. Probably best to use separate sensors that are spaced like the human eyes.
Click to expand...
I agree. The perfect and simple approach to 3D is to use 2 separate sensors spaced like the human eyes. The perfect playback is to use a separate image for each eye, in a form of a stereo head-mounted display. If you can make the field of view wide enough, the result would be as good as reality itself.
Click to expand...
 
But if you space the stereo lenses too far apart, your scene will appear unnaturally small, like looking at a miniature scale model. I've seen that in a 3D film once and it bothered me quite a bit, as human figures appeared to be 3 feet tall.
ZappB said:
Actually, it turns out that spacing the cameras like human eyes produces very boring results. If you hadn't noticed, your depth perception is fairly limited. Objects further than 20-30 meters have very little 3D feel to them. If you are looking for entertaining 3D images, it's usually best to adjust the camera spacing and angle for each particular shot, in the same way that you don't use a 50mm lens for all your 2D shots.
maxnimo said:
Simon97 said:
Gimmick. Lenses seem too close together for true 3D effect unless subject is really close. would work better with APS-C sensor since it is larger and wider. Probably best to use separate sensors that are spaced like the human eyes.
Click to expand...
I agree. The perfect and simple approach to 3D is to use 2 separate sensors spaced like the human eyes. The perfect playback is to use a separate image for each eye, in a form of a stereo head-mounted display. If you can make the field of view wide enough, the result would be as good as reality itself.
Click to expand...
Click to expand...
 
The lens seperation to get the proper amount of parallax between the left and the right eye image depends on the scene.

If there are close by objects then a small lens seperation is a must, the seperation of the dual lenses (in one housing) of the panoasonic lens is only fine for objects up to 2-3 meter distance.

For making a 3D image on top of a high mountain with objects miles away this lens is defenitely not suited, for this you need hyper spatial setups with lenses seperated 1 meter or more...

Conclusion, this new panasonic lens for sure isn't a "one lens, fits all scenes" solution :-(

It is the lack of proper information, the lack of telling what can be done and what can't be done that strikes me most in the panasonic press release.
 
Mac&Camera said:
The lens seperation to get the proper amount of parallax between the left and the right eye image depends on the scene.

If there are close by objects then a small lens seperation is a must, the seperation of the dual lenses (in one housing) of the panoasonic lens is only fine for objects up to 2-3 meter distance.

For making a 3D image on top of a high mountain with objects miles away this lens is defenitely not suited, for this you need hyper spatial setups with lenses seperated 1 meter or more...

Conclusion, this new panasonic lens for sure isn't a "one lens, fits all scenes" solution :-(

It is the lack of proper information, the lack of telling what can be done and what can't be done that strikes me most in the panasonic press release.
Click to expand...
I agree. The only thing I'd add is that if your goal is to make distant mountains look 3D, and you separate the stereo lenses by 1 meter or more, you will achieve that goal, but those mountains will appear like miniatures. If the stereo lens separation is 50x that of the human eye, the 3D scene will appear 50x smaller, like if the head of the observer was 50x larger. :)
 
Mac&Camera said:
The lens seperation to get the proper amount of parallax between the left and the right eye image depends on the scene.
Click to expand...
Definitely.
Mac&Camera said:
If there are close by objects then a small lens seperation is a must, the seperation of the dual lenses (in one housing) of the panoasonic lens is only fine for objects up to 2-3 meter distance.
Click to expand...
I'm looking at that thing, and estimating the stereobase (lens separation) at under 30mm. 65mm is a good stereobase for 2-3m. The rule-of-thumb is 30:1, so I'd put the Panny about 90cm. ;)

For comvincing 3D at 2-3m, I think it's going to need stereobase correction software. I wrote about that on one of the other threads running on this product.

http://forums.dpreview.com/forums/read.asp?forum=1000&message=35914938
Mac&Camera said:
For making a 3D image on top of a high mountain with objects miles away this lens is defenitely not suited, for this you need hyper spatial setups with lenses seperated 1 meter or more...
Click to expand...
Yup.

Or sequential shots from a moving car or plane.
Mac&Camera said:
Conclusion, this new panasonic lens for sure isn't a "one lens, fits all scenes" solution :-(

It is the lack of proper information, the lack of telling what can be done and what can't be done that strikes me most in the panasonic press release.
Click to expand...
Do you mean "strikes me as the most Panasonic thing in the press release"?

--
Rahon Klavanian 1912-2008.

Armenian genocide survivor, amazing cook, scrabble master, and loving grandmother. You will be missed.

Ciao! Joseph

http://www.swissarmyfork.com
 
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