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Philippines, Southern Visayas route with the Philippine Siren

Started Oct 13, 2019 | Discussions thread
OP Barmaglot_07 Contributing Member • Posts: 633
Re: Philippines, Southern Visayas route with the Philippine Siren

daveco2 wrote:

A few more questions, if you don't mind.

Have you been able to verify increased strobe power with the UwT?

I only did a two dives with the converter this past Saturday - was going to go for a third, but got cold in 24C water and 3mm wetsuit. First dive was with 16-50mm and 8" dome, the second with 90mm and macro port. I wasn't able to do a proper 'max power' comparison, but shooting corals at at various depths between 5 and 20 meters the exposure seems spot on.

What was your camera flash setting?

I was shooting manual mode (camera, not flash), AF-C, f/13, 1/160s, auto ISO 100-800, rear curtain sync flash, 0 flash compensation, 0 EV compensation, center metering.

A few samples - nothing specifically artistic about them, I was just verifying that they get exposed properly:

As I understand it, the auto-ISO setting balances the background exposure, while flash TTL balances the foreground. In lower light conditions, I can drop the shutter speed for brighter background.

For macro, I lock the ISO to 100, enable focus peaking (yellow/low) and switch focus mode to DMF. I briefly played with burst shooting (medium drive speed) and it appears to work, if only for short bursts before the strobe capacitors run out, but I haven't seriously explored it so far.

 Barmaglot_07's gear list:Barmaglot_07's gear list
Sony a6300 Canon EF-S 60mm f/2.8 Macro USM Sony E 30mm F3.5 Macro Sony E 18-200mm F3.5-6.3 OSS LE Sony E 10-18mm F4 OSS +5 more
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