Comparing the video from my two cameras at Ten Mile Point (Victoria)
- Thread starter MarkH
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I think the win goes to the T2i.
DaleC
Contributor
My vote goes for the T2 as well. Definitely better colour and usually (but not always) better definition.
Did you post about your homemade LED light? If not what did you do.
Did you post about your homemade LED light? If not what did you do.
OP
MarkH
Contributor
I think the T2i footage is generally better as well, although I don't like how the auto white balance adds too much red sometimes. If I use the T2i for wide-angle video from now on, I can use the HF-M40 (with the fish-eye lens removed) on the same dive for macro.
The LED light was made from a few Luxeon Rebel Tri-Star chips wired together on an aluminum heat sink, using resistors to regulate the current. High-powered LEDs are so hot that the solder would melt in seconds without the heat sink (The first time I tried testing it without the heat sink, the circuit melted and fell apart in about 2 seconds. I burned my fingers trying to pick up one of the tiny fallen leds). I put the final setup in an old Ikelite flash housing. The cord goes to my video housing, where I put a sealed lead-acid 12v battery and an on/off switch operated by a control rod. It's definitely not pretty. I have some brighter leds and current-regulating circuitry on order to make a much brighter light.
The LED light was made from a few Luxeon Rebel Tri-Star chips wired together on an aluminum heat sink, using resistors to regulate the current. High-powered LEDs are so hot that the solder would melt in seconds without the heat sink (The first time I tried testing it without the heat sink, the circuit melted and fell apart in about 2 seconds. I burned my fingers trying to pick up one of the tiny fallen leds). I put the final setup in an old Ikelite flash housing. The cord goes to my video housing, where I put a sealed lead-acid 12v battery and an on/off switch operated by a control rod. It's definitely not pretty. I have some brighter leds and current-regulating circuitry on order to make a much brighter light.
3D diver
Contributor
You've almost got a 3D setup there.
Pics of light? I like the Ikelite Flash Housing idea...hadn't thought of that.
Pics of light? I like the Ikelite Flash Housing idea...hadn't thought of that.
OP
MarkH
Contributor
Here's a close-up of the leds:
Here's the whole thing together:
The cord coming out of the front of the housing goes to a laptop fan I have near the dome to clear condensation underwater:
Here's the battery and switches all held together with electrical tape:
I tried to make the whole thing as ugly as possible so If I accidentally leave it on the beach, people will think it's a bomb and leave it alone.
Here's the whole thing together:
The cord coming out of the front of the housing goes to a laptop fan I have near the dome to clear condensation underwater:
Here's the battery and switches all held together with electrical tape:
I tried to make the whole thing as ugly as possible so If I accidentally leave it on the beach, people will think it's a bomb and leave it alone.
3D diver
Contributor
Pretty cool, thanks. Watch out the bomb squad doesn't blow it up.
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