Recent content by compasscall

  1. compasscall

    PVS-4 focus grabby- frustrated

    Definitely greased, per the TM. Correction, per the PVS-4 TM, the silicon grease is DC-33: "Bulk materials required are as follows: a. Compound, silicone, DC-33 or equivalent." The TM for 18's, 15's, 6's and 9's all list Krytox 240AZ as the grease, I use it on all systems as the default, the...
  2. compasscall

    PVS-4 focus grabby- frustrated

    For butter smooth operation and to conform to the OEM and NVESD, use Krytox 240AZ. The only semi-official alternative would be Dow 33 but I'd pick up a tube of 240AZ, it's the only lubricant I use for NV systems. Some use automotive dielectric silicon or food grade silicon, not recommended...
  3. compasscall

    Night Vision Luna elir3 visible to coyotes?

    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...
  4. compasscall

    Night Vision Need Knowledge on the M644 & M646

    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.
  5. compasscall

    Night Vision Need Knowledge on the M644 & M646

    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.
  6. compasscall

    Night Vision Sionyx Opsin

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

    Night Vision L3 'Smart' Part Number Cypher Keys

    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...
  8. compasscall

    PVS 14 adapter for Hensoldt Spotter 60

    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.
  9. compasscall

    PVS 14 adapter for Hensoldt Spotter 60

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

    Night Vision L3 Unfilmed vs Photonis Echo

    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.
  11. compasscall

    Night Vision L3 Unfilmed WP Weird Ghosting Issue.

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

    Night Vision L3 Unfilmed WP Weird Ghosting Issue.

    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...
  13. compasscall

    Night Vision L3 Unfilmed WP Weird Ghosting Issue.

    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...
  14. compasscall

    Night Vision L3 Unfilmed WP Weird Ghosting Issue.

    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...
  15. compasscall

    Night Vision Average L3 Filmless Specs?

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