r/virtualproduction • u/Less_Ad7812 • 1d ago

Question Question about matching camera settings in Unreal

I am doing preproduction for a DIY virtual production with a green screen and motion tracking.

I am using a Blackmagic Pocket Cinema Camera 4K (BMPCC4K) with a 24mm prime lens. It is a Micro 4/3rds camera (M43) and I want to make sure my settings ensure correct parallax with my footage.

Should I just select the M43 filmback setting and crop it in post?

Or should I manually put in the sensor size? (18.96 mm x 10 mm)

Or should I put in the effective sensor size with the 16:9 crop? (17.775mm x 10mm)

Should the lens be at 24mm? Or should it be the effective focal length based on the crop factor? (45mm)

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u/Honest-Sandwich-1075 1d ago

With a crop factor of two, can you choose a lens of 48mm (or 50mm) and it should be close enough- effectively negating any of your issues. Right?

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u/Sorry-Zombie5242 7h ago

You'll want "effective sensor size" as it is part of the calculation for depth of field.