Forum: Poser - OFFICIAL


Subject: Focal Length Value For An Exact 90 Degree FOV ?

3dcheapskate opened this issue on Dec 01, 2014 ยท 26 posts


bagginsbill posted Mon, 01 December 2014 at 8:22 AM

Here is a render.

I put the dolly camera at 0, 0, 0 (very important to put your camera in a known place to do the measurement).

It is rotated -45 degrees (Yaw = -45) - therefore objects on the Z axis (X = 0) should appear exactly at the edge of the image.

The focal is 12.73 mm.

The two props (one gray, one black) are at different scales and different Z-distance from the origin but both have xTran = 0.

file_0777d5c17d4066b82ab86dff8a46af6f.jpOn the other hand - with focal length 11mm, I see much more than 90 degrees.

file_cedebb6e872f539bef8c3f919874e9d7.jp


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