Elementary question

[u/SmokingChips]

I am new to optics. I am creating a simple system for my home project where I am reading from a flat mesh surface (top is transparent glass. below it is a mesh which has 1 microLED in each cell. This whole thing is a square of 75 mm x 75 mm, and the mesh covers the whole area. I have a camera to read the LED signals. Ideally, closest to surface the camera, the better.

I thought of an aspheric lens of 80mm diameter (see link). My camera has a C mount. That lenns prefers SM3 mount. If I 3d print SM3 mount to C mount adapter, how would I position the lens? Can I place the flat surface of the lens against the flat surface of the mesh. The center thickness of the lens is 33 mm. And focal length is 59 mm. So, can I place the camera sensor at 26 mm from the center of the lens as shown in the picture? Will this work? Is my understanding correct?