Featuring lightweight design with independently pivoting optical tubes, the ATN PS31-2 Binocular Night Vision Device provides users with the resolution, situational awareness, and ergonomics needed for effective nighttime operation. The Gen 2 P43 green phosphor light intensifier tubes deliver 58-60 lp/mm resolution for a clear view, while the 1x magnification, 1.18mm lenses offer a 51° field of view and can focus as close as 9" away. An infrared illuminator supplements the intensifier tubes in total darkness, with an in-view indicator light letting you know it's on. The PS31 runs approximately 60 hours on one CR123A battery and comes with a helmet mount.

P43 White Phosphor Intensifier Tube    58-60 lp/mm Resolution    1x Magnification, 51° Field of View    Independent Flip-up Optical Tubes    9" Close Focusing Distance    Infrared Illuminator, In-View Indicator    Auto Brightness Control    IP65 Waterproof    Lightweight Polycarbonate Body    Uses One CR123A Battery

• Gen 2 green phosphor light intensifier tube
• 58-60 lp/mm resolution for clear, high-contrast image
• Compact f/1.18 lens system
• 1x magnification with wide 51° field of view
• Short 9" minimum focus distance enables user to perform tasks in the dark
• -5 to +5 diopter adjustment keeps views sharp and clear even when the user's vision isn't perfect

• Independently pivoting optical tubes provide binocular and monocular options
• Lightweight fiberglass-reinforced polycarbonate body
• Built-in infrared illuminator with flood lens provides invisible illumination in total darkness
• In-view IR illuminator indicator light
• Bright light cut-off prevents damage to intensifier tube and user's eye
• Automatic brightness control adjusts display brightness to ensure clear views without oversaturation
• Auto shutoff
• Runs on one CR123A battery, approximately 60 hours runtime
• In-view low-battery indicator

Related Questions and Answers

Q: 1. I have some sample photos I would like to upload on my review post, however, I can't find an option to upload a photo. Can anyone help me out with that?

A: In order to upload any sample photos take with the Zeiss Milvus 50mm f/2M ZE Macro lens for Canon EF, you may submit a product review here https://bhpho.to/3MGtgqO

Q: 2. Is it compatible with Crucial 2TB P3 NVMe PCIe 3.0 M.2 Internal SSD?

A: Yes, this OWC Express 4M2 4-Slot M.2 NVMe SSD Enclosure is compatible with the Crucial 2TB P3 NVMe PCIe 3.0 M.2 Internal SSD.

Q: 3. Is this lens a true flat field macro suitable for use on a copy stand?

A: Yes, this lens is ideally suited for copy work. You can view the distortion characteristics on the data sheet located using the link below. a href= http://www.zeiss.com/content/dam/Photography/new/pdf/en/downloadcenter/datasheets_milvus/milvus250m.pdf target= _blank http://www.zeiss.com/content/dam/Photography/new/pdf/en/downloadcenter/datasheets_milvus/milvus250m.pdf/a

Q: 4. Certainly the Macro range is great but how does it compare to standard lenses when you are doing landscapes or anything focused farther away?

A: The ZEISS Milvus 2/50M uses a floating lens element design that optimizes performance from close focus through infinity. As a result, the lens serves a dual purpose as either a close-up macro lens, or a general purpose standard lens. You can view some images at the ZEISS Flickr site: https://a href= http://www.flickr.com/groups/carlzeisslenses/pool/tags/milvus250m, target= _blank www.flickr.com/groups/carlzeisslenses/pool/tags/milvus250m,/a or the Milvus 2/50M Flickr group: https://a href= http://www.flickr.com/groups/2885243@N21/ target= _blank www.flickr.com/groups/2885243@N21//a

Q: 5. What kind of warranty/service comes from Zeiss with the lens, how many years of protection do they offerr? Do you recommend buying extra protection?

A: This lens would come with a 2-Year Warranty, Extendable to 3 Years with Online Registration. The add o warranty runs alongside the manufacturers warranty, but it would also cover drops and spills and world wide coverage

Q: 6. Is there a SSD storage limit for this enclosure? Say 4 TB or 8 TB?

A: Currently the OWC Envoy Express is compatible with up to 8TB M.2 NVMe drives. It has not been tested for anything higher than that at this time.

Q: 7. I have Otus 55...will this lens be equal/better/worse?

A: The ZEISS Milvus 50mm f/2M ZE Macro Lens for Canon EF is a macro lens and the ZEISS Otus 55mm f/1.4 ZE Lens for Canon EF is not. Optically the 55mm is a higher level line and is sharper.

Q: 8. Is there a firmware update to make this compatible with the Nikon Df?

A: No, the ZEISS Milvus 50mm f/2M ZF.2 Macro Lens for Nikon F is already compatible with Nikon Df.

Q: 9. How would this f2/M look in a medium shot during an interview in comparison to the f/1.4 ZE?

A: This is a difficult question to answer, since some of the differences are subjective. If judging contrast and sharpness, you can view the MTF charts in the technical data sheets located at a href= http://zeiss.com/photo. target= _blank zeiss.com/photo./a This will allow you to compare how the Milvus 2/50M appears at wide open aperture to the new Milvus 1.4/50. Aside from this, the main differences are in the DOF and out of focus qualities. In this case, neither is better than the other, it is a matter of your own tastes and needs.

Q: 10. Can this Zeiss lens be used on a Canon mirrorless (RF) camera with an adaptor?

A: Yes.