I picked up another Photonis image tube recently. This one has the more familiar P43 (green) phosphor vs the longer decay time and deeper green P22 tube that I have used previously.
As with other Photonis 4G (aka INTENS) tubes, this tube has a very smooth screen texture when viewing the sky at typical fast NV f ratios.
Sensitivity is pretty good though I have not yet done a direct comparison to a US made tube (like an L3 unfilmed) under dark skies. One of these days.....
Finally made it to Mt Pinos over the weekend (first visit this year for me) and put this guy through its paces while connected to my Tak Mewlon 250/f12.
Here are some sample stills that I took (all single exposure, within 30 sec, low ISO):
1) M 13
2) M 92
4) M 51
5) NGC 5907
7) NGC 7332 & 7339
8) M57 (at f48 with Omega Optical H&O LPF filter)
9) NGC 6888 (with Omega H&O LPF)
10) M27 (with Omega H&O LPF)
11) Trifid (with Omega H&O LPF)
12) Jupiter with moons and Red Spot (with narrow band Methane filter)
Also shot a few real-time videos:
2) Jupiter in the Methane band (can you see the Red Spot?)
The Omega Optical filter is available on eBay at this link.