Arducam 35mm F1.6 Mirrorless C-Mount Lens for Raspberry Pi HQ Camera, with C-CS Adapter, Industrial Telephoto Lens

This has a good solid feel to it. Nice construction. Good un-indexed aperture ring. Smooth focus ring. Do note that this provides a VERY slim fov on a c-mount camera. Despite it's shape it acts as a telephoto. I would equate it to roughly 200mm on a full frame camera.This does NOT have IR-Cut, it will fringe red on most C-Mount cameras as they typically don't have an Infrared filter. However, it is possible to adapt a c-mount IR ring filter to this lense as the focusing piece does not extend out the rear.

this was purchased to mount to a Canon M6mkII using a EF-M to C adaptor. The focal plane was off so the lense was unable to focus on any object more than about 6" away or 3" or less. I used a C mount adaptor as well as a CS mount adaptor, unfortunately neither of them work and I was unable to focus much more than about 8" with the CS mount. I really wanted this to work, perhaps it has another purpose. I have used vintage C mount lenses on this camera with this mount with great success.

So this is why descriptions are very important because this says its for the C-Mount RPI HQ Camera and it turns out mine is a newer M12 mount, so it was more than double the size of the mounting ring I was trying to fit it to. I'm sure you could get an adapter, but that would be a lot of strain on the camera mount.

The 35mm zoom was just a bit too narrow for what I wanted, so I returned the product.

This lens has a lot of purple flaring in images — quite disappointing. I guess in the future I will stick with Fotodiox adapters and fullframe lenses.

The camera aperture and focus are easy to adjust. Rather than being retain with a set screw, the adjustments are held in place with a nice action that holds position.

I have this lens mounted to:https://www.amazon.com/gp/product/B08LHJR3K4/I cannot get a good focus for any aperture or focus setting.I have other lenses that work well on that camera. This lens works very well:https://www.amazon.com/gp/product/B088GQHVY3/

Photo clearly shows a tripod and a board for mounting. This came with nothing but a lens so I cannot use it with buying additional products. The reason I bought this is because it appears to include everything you need.