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Viewing stereo pairs on VR HMDs

Started Oct 24, 2020 | Discussions thread
Brian F Flint
Brian F Flint Regular Member • Posts: 184
Re: Viewing stereo pairs on VR HMDs

Thankyou 3D Gunner for providing these 3 images for testing the effect of different image spacings between left and right image on a VR headset..

I copied your 3 images and added a horizontal black bar at top and bottom in equal amounts so that the aspect ratio was 16 by 9 which is the same as the display on my Sony Xperia Z5 premium smartphone. I put these images into the smartphone's memory. I displayed the images on the smartphone and measured the distance between left and right centres.

Image 1. 60mm

Image 2. 59mm

Image 3. 66mm

My IDP is 66mm

Placing the smartphone into the Zeiss VR One headset, got the following results

Image 1. 60mm - I could only just get the 3d effect

Image 2. 59mm - The 3d effect was lost or very weak

Image 3. 66mm - The image was easily viewed and the 3d effect very good.

The images where immersive , that is the image filled up my field of view in all directions. I did notice that some of the side to side detail went off screen. I would say I could only see about 75% of the original image. I could however see just about all of the vertical detail. Note that I had added horizontal black bars top and bottom - about 33% of the vertical image was black ( vertically about 45mm of the 68mm on the display was lit up by the image )

From the above results I would say that with this set up, having the distance between centre of the left and right image when displayed on the smart phone matching the IDP of the user will give optimum 3d effect and ease of viewing. There is a point that when the distance between centre of the left and right image is reduced the 3d effect will be lost. I my case ( when using the Zeiss VR One headset ) this occurred at the distance of 60mm. My IDP is 66mm.

 Brian F Flint's gear list:Brian F Flint's gear list
Panasonic Lumix DMC-ZS60 Sony RX10 III Canon MP-E 65mm f/2.5 1-5x Macro
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