What camera focal length do you render when you take a bust-up photo or a face-up photo of your character?
In my case, I used to move the camera itself so that the character fits in the camera view, but in that case, the character is clearly distorted.
Is it best to adjust the camera position after controlling the framing with the focal length instead of moving the basic camera position?
I would like to know what kind of thoughts you have in mind when deciding the camera position and focal length, including when shooting in the real world.
60° FOV requires less setup because of view space, which means less work time needed and more optimal performance in terms of render space.
90° FOV is used in creating realistic perspectives, but requires more work and is relatively less optimal in render terms.
This sounds like you’re potentially having trouble with some screen-space dependent shaders.
Usually it’s always best to position the camera, as moving the object can sometimes mess up animations and other location dependent elements such as modifiers or geo-nodes.
I’d like point out a important subject - Blender does not use standard FOV algorithms, or at least the FOV algorithm that most game-engines use. Summarized and explained in the link below:
This gallery shows real portraits taken with a variety of lenses. You should check it out, but for quick reference:
Blender does things differently than game engines, but it does use physically-realistic FOV calculations. That is, if you made a 3D model of the model above, put it in Blender, and set the FOV to 85mm, your end result would look exactly the same as the image. It’s common practice in photorealistic sculpts to use reference images with a known FOV value and match them in perspective mode. If you’re not exporting to a game engine, you should match FOV to real lens values
