Posted 19 March 2013 - 09:51 AM
The Nano loads batteries by unscrewing the front, like a lot of simple above-water flashlights. Turn on is by 'loosening' it a 1/4 twist or so.
I just bought a red filter gel from somewhere (cheap, 6x8" size) and cut it down and put it behind the glass on the Nano. Worked fine; no problem with the sealing or on/off capability at all, and it still did the auto-shutoff when sensing strobe light, too. In a pinch you could probably find a sheet of red 'viewgraph' film from an office supply store. Or find a place that does gift baskets and see if they have a red cellophane wrap and will snip you a corner.
Edited by rtrski, 19 March 2013 - 09:55 AM.
Current rig: Sony SLT-alpha55 in Ikelite housing, Sigma 105mm f2.8 DC Macro w/ Ike 5505.58 flat port or Sigma 8-16mm f/4.5-5.6 DC HSM behind UWCamStuff custom 5" mini-dome. Dual INON z240 Type IVs triggered with DS51 for TTL mimicry, or DS51 alone with home-made ringflash assy for macro.
Topside, unhoused: Sony SLT-alpha99, Sigma 150-500mm + 1.4TC, Sigma 15mm diagonal fish, Sony 24-70mm f2.8 CZ, Tamron 180mm f2.8 Macro...all the gear and nary a clue...