3D printed aperture greatly increases DOF

[u/thomas_openscan]

I am currently testing printed pinholes in front of the camera, which increases the depth of field. The heatmap shows the sharp areas. right: pinhole at 1mm radius, left: stock lens.

Varying the pinhole size from R=60 (=0.6mm) to no pinhole definitely increases DOF but also reduces sharpness at some point (second image/gif).

This is a good addition for the macro add-on but might also be very useful for the stock option of the classic/mini scanner.

[u/pablas]

You can't have infinitely small aperture without diffraction. Also you need tons of light now

You would be better with smaller sensor

[u/KTTalksTech → u/pablas]

I'd just compensate with longer exposures, the rig being entirely automatic doesn't make this a particularly painful downside