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I believe both deer and coyote's can see the emission from the Luna ELIR-3. With full spectrum camera's the output of the ELIR-3 appears orange. Jay of SureShot Night Vision has a nice photo of this orange beam on instagram: Here's a screen grab from a video of the ELIR-3 next to an...

The one that would thread on has fine threads just about a third of the way from the output end. It also isn't stepped like the pictured one, more of a taper. The rear element is also larger. I swear Jamison (NAIT) was selling the lenses a while back. I'd also hit up Jason Crum of Ident Marking.

That lens, as configured, is not for the M646 The mechanical interface of that lens is for the ITT NQ6010/Star-Tron MK-880. Don't believe this can be swapped over. I'd contact NAIT and Nightline.

Looks like it's exceeding what I'd hoped for...

Not to many years ago there were a couple batches of "commercial", unfilmed, non-gated tubes. Remember thinking they were a bargain. I ping Rich over at UNV or try L3 direct. 11769UG-ND-C001-18UM would decipher to unfilmed, P43(G), non-gated but maybe 🤡 world has affected part numbers and...

To step down from male T-mount to female PVS-14 objective thread, this adapter from RAFCAMERA will be invaluable. A standard 42mm-to-30mm step down ring can work, the threads on the 14 side aren't quite a match, will grab but wouldn't trust it.

This may not work for all but I use a Novagrade adapter for eyepiece connections.

Aperture disk fixed it at f/2.8 but if you remove the 3 screws on the back end, just behind the c-mount adapter, you can pop the lens in half and remove the aperture disk. This will get you the maximum aperture of f/1.8, well worth doing.

Sure wouldn't be a bad idea as any nitrogen or argon will be lost.

Yes, the battery / PS containing component. Swap the lowers between the two units. Put the lower on from the tube that's not exhibiting the effect onto the upper with the affected tube and vis versa. Don't think I'd bother with the whomever you've been working with. Yea it may be a comped...

Yes, thank you, I should have said this effect is a characteristic of MCP image intensifiers as apposed describing it as normal. While the effect is a characteristic of MCP tubes, the manufactures do try to minimize it. I've seen the effect creeping back in as manufacturers tweak MCP processing...

Occures at a dark/bright interface and movement causes a traveling wave at the boundary? Sounds totally normal and is related to the resistance of the micro channel plate. So seems you have a totally normal and temporal traveling wave effect. If you quickly oscillate the units FoV at the...

Thought NVDevices contracted with RPO for the optics on their UL line and that the Ether was also with them.

Through pairing transition lenses with your 14, you've effectively turned your glasses into NV sunglasses. Just avoid photochromatic lenses when pairing with your WP unit, the chromaticity of your tube is activating the photochromic molecules in your transition lenses, just like UV-Vis does...

With a greater than 65% illuminated lunar disk or introduced illumination from either IR or white light, you probably can't do better, at least on a new ready to go system. Forget 60fps at anything lower than a 90% illuminated lunar disk, 30fps it will be. and below 35% your in 15fps and 7.5fps...

Anyone know who the U.S. rep is for these Thales systems or the Exclitas Kestrel HP with f/0.95 objectives?

Sure thing...

PVS-5 image intensifier, PVS-5A optics (objective and ocular) - So pretty much a PVS-5A monocular. Could be an early Stano Components build.

Wow, ridiculously good content. The lens used for the Cheetah scenes seemed aweful fast as the depth of field was just so extremely shallow. In the behind the scenes episode I saw, relating to the ultra low light camera footage, the use of a Panasonic Varicam (35?), IR Converted Sony a7...

Looks like a pair of Reed Switches for the helmet mount auto cut-off. Appears as though the glass capsule is shattered on one of them, hard to say for certain. Those glass capsules don't take to applied force, it doesn't take much to break them. Was the left tube having the issue before the...