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Silver cylindrical C-mount lens with manual focus and aperture rings, includes black C-CS adapter ring

KEHIPI

KEHIPI 2.8-12mm Varifocal C-Mount Lens for Raspberry Pi HQ Camera, with C-CS Adapter

SKU CH-ND6F-EFPE4

Varifocal 2.8-12 mm C-mount lens with C-CS adapter for Raspberry Pi HQ Camera, manual focus and aperture, 125°-43° horizontal FOV on IMX477

  • TypeTelephoto
  • CompatibilityRaspberry Pi High Quality Camera
  • Feature12 month
  • Adjustable 2.8-12mm focal length lets you frame wide or telephoto shots
  • Manual focus and aperture rings give precise control over depth and exposure
  • C-CS adapter included converts the Pi HQ Camera's CS-mount for C-mount lenses
  • 125° to 43° horizontal field of view covers broad scenes to narrow details
  • Compact 44.5×58.5mm, 140g design keeps the camera rig lightweight and portable

Purpose-built lens

The KEHIPI 2.8-12mm varifocal C-mount lens is designed for the Raspberry Pi High Quality Camera. A C-CS adapter is included to match the camera’s CS-mount. It suits builders adding a flexible telephoto option to machine-vision or surveillance projects.

Ideal users and limits

Makers who need adjustable focal length between wide and narrow angles will benefit from the manual focus and aperture rings. Buyers who require a fixed wide-angle view, a longer telephoto reach, or an integrated IR-cut filter should look at other lenses.

Deciding specification

The lens covers a 2.8-12mm focal range with an aperture of F1-F1.6 and a 1/2 inch optical format. On the IMX477 sensor it delivers a horizontal field of view from 125° down to 38°. These figures determine whether the lens matches your framing needs.

Highlights

  • Adjustable 2.8-12mm focal length lets you frame wide or telephoto shots
  • Manual focus and aperture rings give precise control over depth and exposure
  • C-CS adapter included converts the Pi HQ Camera's CS-mount for C-mount lenses
  • 125° to 43° horizontal field of view covers broad scenes to narrow details
  • Compact 44.5×58.5mm, 140g design keeps the camera rig lightweight and portable

Specifications

BrandArducam
ModelC20280M12
Part NumberLN049
TypeTelephoto
CompatibilityRaspberry Pi High Quality Camera
Feature12 month

Questions about this item

Should I pick the 2.8-12mm varifocal or one of the fixed focal lengths like 35mm or 50mm?

Choose the 2.8-12mm varifocal when you need to frame anything from a wide 125° view down to a narrow 43° view on the IMX477 sensor; fixed lenses such as 35mm or 50mm give a single field of view and cannot zoom.

What does the 2.8-12mm range actually give me on the Raspberry Pi High Quality Camera?

On the 1/2.3" IMX477 sensor the lens covers a horizontal field of view from 125° at 2.8mm down to 43° at 12mm, with a matching 120° to 38° range on the same sensor.

The lens uses a C-mount with a C-CS adapter — what does that mean for mounting on the HQ Camera?

The included adapter converts the camera's native CS-mount flange distance to the C-mount standard, so the lens seats correctly and maintains the 17.53mm back focal length required for sharp focus.

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