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A problem with "analog" lenticular 3d-stereo printing

Started Nov 24, 2021 | Questions thread
3D Gunner Senior Member • Posts: 1,031
Re: A problem with "analog" lenticular 3d-stereo printing
1

Oleg L K wrote:

The lenticular lens used is Vuethru "souvenir photo-frame" - 60lpi.
I do achieve stereo effect, and the best viewpoint is exactly in the center... So far so good.

But the resulting picture looks very dark when properly aligned with the lenticular plastic. Studying it with a loupe reveals that about half of its area is nearly white.

Any ideas on how to improve the prints? Maybe a different lenticular lens?

Thank you in advance,
Oleg.

The lowest angle for viewing 3D lenticular images is 25 degrees. Using a 25-degree lenticular plate will reduce the size of the white space between images.
To make the image brighter, you just need to expose the photo paper less. Without the lenticular plate the image looks brighter and more washed out (due to the white spaces interspersed), but that doesn't matter, it only matters how it is seen in the end, under the lenticular plate.

You can also try to reduce the white intermediate space by double exposure, through a more complicated technique, but effort is probably not justified.

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