As a (real world) photographer I've always been suspicious of the camera in Daz Studio. The focal length feels off compared to what I'm used to seeing in the viewfinder of an actual camera, so I decided to shoot some tests by setting up a graded 360-degree panorama, 10 meters in diameter, placing the camera in the middle and physically measuring the angle of view in degrees. I then compared it to the calculations on of the AoV calculator found here:
Long story short...
The Daz camera has a default focal length of "65 mm" on a 36mm frame. This turns out to actually translate to a 43.3 mm lens on real 36mm cameras, like the Nikon FX cameras.
Here's a quick guide to some common focal lengths:
REAL 50 mm lens = 75 mm in Daz
REAL 85 mm lens = 127.5 mm in Daz
REAL 24 mm lens = 36 mm in Daz
Basically, if you want a certain focal length, just multiply it by x1.5 in Daz!
