Night Vision Chat Thread - Ask Us Anything

[xjayxmanx]

I see you guys have some GP echo tubes in stock. Why is the gain so much higher than WP tubes?

Does it result in better low light performance ?

[Cold Harbour Supply]

I see you guys have some GP echo tubes in stock. Why is the gain so much higher than WP tubes?

Does it result in better low light performance ?

Photonis hasn't disclosed the technical reason of "why" their GP tubes are higher gain but potentially related to the amount of green phosphor that can be deposited onto the output screen.
But yes - it absolutely equates to a brighter image and better low light performance compared to WP.

[propliner]

When using a thermal clip-on, does the quality of the day scope's lenses matter at all? Since when using a clip-on, you're only viewing a picture of a small screen merely inches away, would an expensive scope have any advantage? This is assuming that the cheap scope tracks ok.

[Cold Harbour Supply]

When using a thermal clip-on, does the quality of the day scope's lenses matter at all? Since when using a clip-on, you're only viewing a picture of a small screen merely inches away, would an expensive scope have any advantage? This is assuming that the cheap scope tracks ok.

Glass quality is going to matter a lot less in this application for precisely the reason you stated. That being said, the strength of such a system is to be able to add thermal when you need it, so I would imagine you would still want a good day scope for the instances when you're not using your thermal. Unless you're planning on it being a permanent clip-on?