Review on 📸 Enhance Raspberry Pi Camera's Focus and Angle with Arducam's Adjustable Lens Board, Perfect for Raspberry Pi 4/3/3 B+ by Justin Hollins

I bought it because or the seller's answer to the user's question about the field of view (FOV). "Standard lens: HX-27227, FOV=105, .website-specs. spec "Diagonal FOV=105°" If this is the case, the horizontal field of view should be around 95°, wider than a right angle. It's easy to verify that this isn't the case, it's much tighter. I estimate it to be around 50 degrees at best. And the barrel distortion is very noticeable. This is acceptable for a true 105° field of view lens, not a 50° field of view lens.