I went out with both thermals tonight (no guns tho) to try to do some side by side video.
Dafty me forgot to put the memory card back in the DVR !
I'm really sorry about that because I was blown away by the contrast and sharpness of the image compared to the Guide and I would have loved to share that with other forum members.
However, I might get a chance to try again tomorrow night.
I mentioned that I was powering the new thermal from 2/3 of an Elwirecraft 1800mah battery
The reason for that is that there was only room for 2 cells in the small alloy box.
However it's not a problem because the thermal core runs on 2.5-5.5 volts and the OLED runs on 5-15 volts.
The solution was a simple 5 volt 3 terminal regulator.
Even although the regulator wastes a bit of power (appox 0.9 watts) I preferred it against a switching regulator because I didn't want any interference on the screen
The power drain is 2.3 watts which means the battery should be good for at least 4 hours
As far as I know, the only thermal commercially available in the UK with a comparable spec is this one
I can't get a price from them, they want to send a salesman round!
If anyone can get them to divulge how much they want for the 633 model, I'd be really interested
I note they advertise it as 25Hz.
Mine is supposed to be 50Hz and it certainly looks like that when you scan it around
Apologies for the rather rambling post.