The ViSWIR Lite C-Mount 25mm Fixed Focal Lens from computar is designed for use with SWIR series cameras that have a 2/3" sensor. This fixed lens has a 25mm focal length that delivers 24.9° diagonal field of view. It features a manual iris and focus operation with locking set screws.

Compatible with 2/3" Sensors    C-Mount    25mm Focal Length    24.9° Diagonal Field of View    Manual Iris & Focus    Locking Set Screws on Iris & Focus Rings

f/1.4 aperture

Multilayer coating on metal lens parts minimize negative lighting effects and delivers high transmission from 400nm to 1700nm

Manual iris and focus

0.98' to infinity focus range

Locking set screws on iris & focus rings

8.8 x 6.6mm (Ø11mm) maximum image format

CE certified

Related Questions and Answers

Q: 1. Will it work with a Sony a7ii

A: According to the following page on Reikan's site https://blog.reikanfocal.com/2015/05/reikan-focal-2-test-release-2-now-available/, we should be able to use Reikan Focal Pro in “File Mode” with Sony A7 series files. However, I get an error message saying it is an unsupported camera whenever I try. From the page: “So if you want to calibrate a Sony 70-400 using an LA-EA4 on a Sony A7 camera, or check out the aperture sharpness results for a completely manual vintage Zuiko Jupiter 8 lens, you can do it easily now with File Mode!” Note: I'm using version 2.4 but this was announced in version 2.0

Q: 2. can this lens be used with olympus m1 mirrorless 4/3 camera?

A: The Micro $/3 version is needed for the Olympus OM1 camera: https://bhpho.to/3Li5UJc

Q: 3. Does anyone know if the focus scale accurate enough to use zone focusing? I plan to use it with my x-Pro1

A: Yes, the focusing ring on the TTArtisan 25mm f/2 Lens for FUJIFILM X is accurate enough to use for zone focusing.

Q: 4. Will this lens work with auto-exposure function on the Z50 camera?

A: TTArtisan 25mm f/2 Lens for Nikon Z is only manual exposure. You need to set the exposure manually by turning the aperture ring on the lens with your hand.

Q: 5. Will metering work with the lens so that I can set the appropriate aperture and shutter speed?

A: The TTArtisan 25mm f/2 Lens for Nikon Z is a manual lens that does not communicate with the camera. Therefore, an external meter is the best way to set the correct aperture and shutter speed. The Sekonic L-208 Twin Mate - Analog Incident and Reflected Light Meter is excellent. Here is the link: https://bhpho.to/3xnX6eL.

Q: 6. Hello I was wondering if i could use this with the Fujifilm X-pro3

A: Yes, the TTArtisan 25mm f/2 Lens for FUJIFILM X is compatible with the FUJIFILM X-Pro3.

Q: 7. Can I use for Canon R?

A: Yes, the TTArtisan 25mm f/2 Lens for Canon RF-mount does work with the Canon EOS R camera.

Q: 8. Why is there vignetting when lens is on?

A: Most wide-angle lenses like the TTArtisan 25mm f/2 Lens for Nikon Z have at least a small amount of vignetting at the widest aperture.

Q: 9. In the product pictures, I see several wires running between the laptop and the camera. What sort of hardware do I need to connect my camera to my computer?

A: The USB cable that came with the camera connects the camera to the laptop or computer. In some cases the software is able to control the camera and "enter" the correcting factors automatically, in others you have to manually add the numbers before the next step is performed. In this case make sure you have a very secured tripod/tripod head to avoid any movement otherwise you will need to start all over.

Q: 10. Is the aperture ring clicked or declicked?

A: The aperture ring of the TTArtisan 25mm f/2 Lens for FUJIFILM X is not de-clicked.