M12 Lens Set, Arducam Lens for Raspberry Pi Camera (1/4") and Arduino, Telephoto, Macro, Wide Angle, Fisheye Lens Kit (10°- 200°) with M12 Lens Holder and Cleaning Cloth, Optical All-in-One

No issues

What is this square glass on the back of each lens? Should I remove it? Nothing in the instructions about it.

Sure, we could just use the lens that came with the camera. We could have estimated which lens might be best for a given application. But this high quality, inexpensive and complete collection of lenses for our Arducam cameras allows us to easily determine the appropriate lens for our various applications. The kit is ideal for experimentation on the "optical side" so as to frame up the best image for capture, processing and display.

Its a great assortment of lenses for the Arducam. I did have some issues with one of the lenses, contacted the company and they have been quick to replace it. Other than that, for the Raspberry cam enthusiast this is a great collection!

These lenses are perfect for the Raspberry Pi project that I'm working on. It was easy to find them and the fulfillment turn around from the seller was great. Support your "Ma & Pa sellers" and order from Arducam

Like it all. A very interesting lens set, which covers most needs. A good value for money.

Most of the specs were available (missing a few) and it was a perfect sample for what I needed. Great set of different angled lenses to determine FOV, and get a benchmark for other necessary specs. Especially useful if you have potentially changing applications.

Make sure your arducam module has changeable mounts so you don't have to order a different one like I did.