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Stewart L. Sy

Member Since 03 Feb 2003
Offline Last Active Aug 27 2015 12:11 PM

Posts I've Made

In Topic: which setup to shoot burst underwater?

11 August 2015 - 08:38 AM

I have shot higher speed bursts underwater.  I used my 5dmk3 shooting at 6fps with the YS-D1's.  By default, as the 5dmk3 does not have a pop up flash, I used electrical sync cords.  I used this set up mainly for mandarin fish or anemone fish shots.  Using the D1's at 1 click under half power, sometimes even 2 clicks.  I find I can fire around a 2 second burst with the D1's.  I don't do this often and do let the strobes cool down. Most of the time the burst is for 6-8 shots.   


Optical triggering by the factory popup flash won't usually work even if you manually set the flash to low power as (in Canon's case) the body limits to 3fps.  If you want optical triggering then you'll need some sort of converter from electrical to optical, like the one found on S&S housings, I believe this setup will also do TTL, but I don't have first hand experience.





In Topic: YS-D1 Minor Flood

28 May 2015 - 08:59 AM

After the vinegar, rinse out with fresh water then 99% rubbing alcohol.   The alcohol should displace the any leftover water and dry with no residue.

In Topic: switching from autofocus to manual focus underwater?

16 April 2015 - 07:22 AM

Any USM EF lens can be over ridden using the MF ring on the lens.  I use this method using my Aquatica housing.  I have the AF/MF Macro port.  If I want to use MF, then I turn the external knob on the port body, this is in turn connected to the MF gear mounted on the lens.  I have back button AF enabled so if I want to use the manually focused image then simply triggering the shutter release works.  If I want to go back to AF then simply re-engaging the rear AF button starts the camera to AF.  Aquatica also has a MF port extension for use with the Canon 16-35/17-40L Wide Angle zooms.





In Topic: WTB: Sea and Sea YS-D1's

15 April 2015 - 07:08 PM

Sent you a PM

In Topic: Canon 5dS and 5DR

12 February 2015 - 11:02 AM

Here's a very exciting comment from Tsunemasa Ohara, the Senior General Manager of Camera Research and Development at Canon Inc the man in charge of the 5ds & 5dsr's development  "...existing EOS 5D Mark III body shell used for these cameras" and from Canon CPS-Europe : Compatible with most EOS 5D Mark III accessories (note: the WFT-E7 requires new USB cables and firmware updated)."


This means that the new 5ds and 5dsr should fit in existing 5dmk3 housings! =)  Now to get some 44" wide media for my HP Z3100!  Heh heh.