After years of meticulous optical research (read: 1 minute, of which 30–40 seconds were spent launching Fusion 360), I proudly present the FocusFin™ – a revolutionary, ultra-sophisticated solution to a problem nobody asked for, but we all secretly suffered from.

Traditional focus tools fail miserably when faced with the mighty mystery of the outer lens thread ring (yes, that ring definitely has a name – but let’s not get distracted).

Enter the FocusFin™:

✔️ Slides in like it owns the place

✔️ Grips the groove with scientific elegance

✔️ Turns the lens like butter on a hot pan

Designed for camera modules that wear chunky thread rings like badges of honor.

3D printable, frustration-reducing, and possibly sentient (results may vary).