The 35mm C Mount Lens for Raspberry Pi HQ Camera is the latest camera accessory from Arducam.
In order to meet the new demands of the lens to work with Raspberry Pi High-Quality Camera, we have selected and tested a wide range of lenses on the Rpi HQ cameras. It’s now much easier for you to get the best lens you’ll need. The lens is tested among many other lenses selected on the 12MP RPi HQ Camera. No lens shading, no dark corners, decent image quality, it just works. It is another cost-effective choice that adds up to your Raspberry Pi High Quality Camera Module.
Note: The Raspberry Pi HQ camera module is NOT INCLUDED. The camera module is essential to operate the lens with Raspberry Pi. If you need to get one, please check this page out.
In case you didn't know, HQ camera module is capable of delivering 12MP of a picture with the SONY IMX477 image sensor. The body is an industry milled aluminum lens mount with an integrated 1.4"-20 tripod mount and a focus adjustment ring that is compatible with C or CS mount lens.
The HQ Camera Module comes WITHOUT Lens
Here is some info about C-mount and CS-mount from meijitechno.com:
"C- and CS-mount lenses are both threaded lens mounts found on most industrial CCD cameras and lenses. The difference between C and CS-mount equipment is the distance between the flange of the lens (the part of the case that butts up against the camera) and the focal plane of the lens (where the CCD sensor must be positioned). This is known as the flange back distance.
The C-mount lens specification for flange back distance is 17.53 mm, and on CS-mount lenses, it is 12.53 mm. If you have a CS-mount camera and a C-mount lens, you can add a 5mm spacer to obtain the correct focus. If, however, you have a C-mount camera and a CS-mount lens, the correct focus cannot be achieved."
If you are using a CS-Mount lens, the adapter must be removed. However, for C-Mount lenses, the C-Mount adapter is a must-have. Sometimes if you are still not able to focus a C-Mount camera even after the adapter is on, adjust the back focus. The gear-like ring on the main housing of the camera module is the back-focus adjustment ring, and you can spin it to alter the distance between the bottom of the lens and the IMX477 image sensor.
Once you’ve mounted the lens on, you will have to face the various kinds of handles on the ring of the lens. Typically, every C/CS-Mount comes with a focus ring, and many come with an aperture ring, while few may include a zoom ring. The trick to adjusting theses rings is you only tweak one ring at a time with the others fixed. Otherwise, they will move each other and ruin your last adjustment.
Here's an example of how to set up the camera to Raspberry Pi:
- Model No: C1535ZM01
- Optical Format: 2/3″
- Focal Length: 35mm
- Aperture: F1.7 ~ F16, adjustable
- Field of View (FOV): 14.3°(H)×10.8°(V), 10°(H) on 1/2.3″ IMX477 High Quality Camera
- Focus Type: manual
- Mount: C mount
- Back Focal Length: 17.53mm
- MOD: 0.2m
- Dimension: Φ35×30mm
- Weight: 75.5g
- 1 x C-Mount 35mm Focal Length lens for Raspberry Pi
- 1 x C-Mount adapter
- Raspberry Pi High Quality Camera Module Product Brief - by Raspberry Pi foundation
- Typical C-Mount Lens Guide
- Raspbian - Latest Operating System by Raspberry Pi foundation