The Theia ML183M C-Mount 1.8-3mm Varifocal Lensfrom Theia ML183M C-Mount 1.8-3mm Varifocal Lensis designed for use with up to 5MP resolution cameras that have a 1/3, 1/2.7, or 1/2.5" sensor. This varifocal lens features a 1.8-3mm focal length that delivers an adjustable field of view from 115 to 77°. It is IR corrected and has manual iris operation with manual focus and zoom with lock screws.

Compatible with Cameras up to 5MP    C Mount    Works with 1/3, 1/2.7 & 1/2.5" Sensors    1.8-3mm Focal Length    IR Corrected    Field of View Adjustable from 115 to 77°    Manual Iris Operation    Manual Focus and Zoom with Lock Screws

IR corrected from UV (435nm) to IR (850nm)

f/1.8 to close aperture

Linear Optical Technology delivers an adjustable wide field of view from 115 to 77° (image will be flipped with this technology)

EasyZoom optimizes field of view with minimal need for refocusing

Pan focus from 1.64' to infinity

<1% distortion

Supports multi-megapixel resolution cameras

Related Questions and Answers

Q: 1. Hi,What size of filter do I need for this lens ?thanks

A: This lens does not accept any additional filters.

Q: 2. Will this fit the GoPro HERO11 Black or it needs and adapter?

A: The Tamron 13VM550ASII CCTV Lens (5-50mm, f/1.4), BH # TA55014MICS, • will not fit any of the GoPro cameras. Consider this modified GoPro if you want to use various interchangeable, auxiliary lenses. Back-Bone Gear H11PRO Modified GoPro HERO11 Black Action Camera (Body Only), B&H # BAH11PRO. Key Features: Modified GoPro HERO11 Action Camera M12/CS/C-Mount Lens Mount Removable MFT Mount for Manual Lenses New 8:7 Shooting Modes, 10-Bit Color 5.3K60/4K120/2.7K240 Video, 27MP Photos Time-Lapse & Night-Lapse, 8x Slo-Mo HyperSmooth 5.0 Video Stabilization Compatible with Entaniya M12 VR lenses Tripod Mount, GoPro Mount, Custom Case 1720mAh Capacity Battery

Q: 3. Is this lens compatible with the Marshall CV506, 1/2.8" 2.5MP CMOS Sensor?

A: Yes. This lens is compatible with this Marshall camera: Marshall Electronics M12-Mount 6-22mm IR Varifocal Lens BH #MACV06225MP https://bhpho.to/3vl9Lgi

Q: 4. Is this lens compatible with Marshall Electronics CV505-MB 1/3" 2.5MP FHD 3G-SDI/HDMI Camera?

A: Yes this lens is compatible.

Q: 5. How good is the video quality and image quality? I'd love to see the pictures and videos to see what I'm taking into consideration of this product.

A: Unfortunately we do not have pictures to show you, However the lens does supply a superb image.

Q: 6. Can I see image/ video quality please before I make any considerations?

A: Please view the tamron website for sample images: tamron-usa{dot}com

Q: 7. Does this lens contain an IR filter at the back or the user must use his own IR filter to correct the color shift? AF? AZ?

A: The Marshall Electronics M12-Mount 2.8-12mm IR Varifocal Lens is an IR corrected lens.

Q: 8. what is the country of manufacture of this lens?

A: The country of origin is China.

Q: 9. Will this lens perform on an Axis M1125 security camera? Veing a single static subject, 40 feet away, maybe covering 6 feet wide subject?

A: Yes you can use this lens with the camera. As for your other questions, you will need to set the lens at around 30mm to get your 6'width.

Q: 10. Is this a network Camera?

A: This is not a camera. This is a lens that mounts to a camera and is independent of the surveillance camera that is purchased. It has a threaded mount that is compatible with various surveillance camera formats. This unit has the standard iris connection for supported surveillance cameras, you should be able to select a camera that will meet your requirements whether IP or other format. Note that this camera is an excellent performer in the near IR range for surveillance, and will support cameras with imagers of 1/2.7 or smaller without falloff. You should understand the field of view relative to the focal length and imager size when purchasing for your application. the 3MP resolution support should support resolutions at the standard HD resolution of 1920x1080 and beyond.