The ViSWIR Lite C-Mount 50mm Fixed Focal Lens from computar is designed for use with SWIR series cameras that have a 2/3" sensor. This fixed lens has a 50mm focal length that delivers 13.1° diagonal field of view. It features a manual iris and focus operation with locking set screws.

Compatible with 2/3" Sensors    C-Mount    50mm Focal Length    13.1° Diagonal Field of View    Manual Iris & Focus    Locking Set Screws on Iris & Focus Rings

f/1.8 aperture

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

Manual iris and focus

1.64' 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. What other lenses may work with the focal reducer (PL to RF)?

A: The Venus Optics Laowa 0.7x Focal Reducer for Probe Lens (PL to R Mount) (B&H# VE07FRPL2R) is a highly specialized focal reducer designed to fit and work well only with the Venus Optics Laowa 24mm f/14 Probe Lens for ARRI PL (Cine-Mod Version) (B&H# VE2414PL). While it's possible that you may get it to work to your satisfaction with other lenses, we cannot endorse their use as damage to the optical element in the focal reducer could result. The major concern has to do with an invasive rear element in the PL lens coming in contact with the element in the focal reducer. Moreover, even if one could be sure of the fit, the result may suffer from more softening or chromatic aberration than some customers would consider acceptable. As is often the case, however, you are welcome to try the focal reducer and to return it within 30 days with an RMA authorization and accompanied by all of the original packaging. It would also need to be in the same condition in which it was received. Returns policy details: https://bhpho.to/3utL5n1

Q: 2. 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: 3. can i use this focal reducer with Sony FX30 "APS-C camera" and the laowa probe E mount ?

A: The Venus Optics Laowa 0.7x Focal Reducer for Probe Lens (BH #VE07FREF2E) is an EF to E mount, so you'd have to pair it with the EF mount version of the Venus Optics Laowa 24mm T/14 2x PeriProbe (VE2414PEF) for use with the FX30.

Q: 4. When mounted on a canon cne 18-80 lens on a lumix bs1h camera, Does the quality of the image will weaken becuase the glass ?

A: The Venus Optics Laowa 0.7x Focal Reducer for Probe Lens (EF to L Mount) is only meant to mount the Probe Lens from Venus Optics and none other. We cannot guaranty any quality results of mounting another lens onto your desired system with this adapter.

Q: 5. Can it be used with Sony FE lenses too or just the probe lens?

A: The Venus Optics Laowa 0.7x Focal Reducer for Probe Lens (BH #VE07FREF2E) is only designed for use with Laowa's Probe lenses. We would not recommend using it with any other lenses.

Q: 6. Will the software work with a Nikon camera that is more than -20 out of focus on fine tune?

A: Yes. The following item will al low an end-user to make custom fine tune adjustments.

Q: 7. How is the software supplied? Online download or CD or USB or which? Many new laptops do not have CD drive-thanks.

A: The software is downloaded from Reikan's website.

Q: 8. What's the difference between the plus and the pro?

A: Focal Pro has the additional functions:Aperture Sharpness find out the sharpest aperture for your lensesAutofocus Consistency check out the autofocus performance of you camera.Dust Analysis find out how much dust is on your sensor, and which aperture it will start affecting images.MultiPoint Focus Test automated comparison of many focus points, and even full individual calibration.Also, FoCal Plus will NOT allow calibration of lenses or a combination of lens & teleconverter with an effective focal length longer than 400mm. For this, you will require FoCal Pro.

Q: 9. Is this product designed to only work with the probe lens? The description & the comparability tab say contradict each other.

A: The Venus Optics Laowa 0.7x Focal Reducer for Probe Lens is designed for mounting the PL-mount Laowa probe lens on a Super 35/APS-C L-mount camera body. This does not mean you can't try to use it with other lenses but it has not been tested to do such and there is no compatibility chart for the adapter.

Q: 10. If I understand, I will have to run the program with each of my lens 9 Nikkor and Tamron G2. Is the camera record and keep in memory the correction result per lens ?

A: Yes. Each lens may have a different optimal AF Fine-tune set point. The last step in the FoCal is to enter the optimal AF-Fine tune number for that particular test. The (Nikon) camera will remember the setting for each lens tested and will automatically load that number when you put the lens on the camera. You can always change it manually, in the camera, for the lens that is on the camera. Test Zoom lenses at different focal lengths. You may have to compromise on the "best" setting since Nikon cameras only store one correction number for each lens.