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Ferg42

Member Since 09 Jan 2006
Offline Last Active Aug 25 2014 08:10 AM
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Topics I've Started

Deep South Red Sea Photo Workshop

06 July 2014 - 08:04 AM

Here's a recent trip video from a deep south Red Sea photography workshop (Egypt). Shot with Canon 5D Mark III in Nauticam with Canon 16-35mm, 17-40mm and 8-15mm lenses. Lit with the Orcalight Seawolf 2260. Loving the sheer lumen power of that light.

 

 

For some reason the embedded video won't go above 720p res so for the full 1080 effect click through to youtube......


Orcalight Seawolf-22000 lumens in the Maldives

23 April 2014 - 07:48 AM

Hi All,

 

I recently had the opportunity to try out the ridiculously powerful Orcalight Seawolf video light in the Maldives and thought people here might be interested. Stuart Keasley (bottlefish) did a detailed technical review here so I won't go into too much depth on the specs. The main outstanding feature of this light is the sheer lumen-power. A single lighthead can push out 22000 lumens. I had previously considered my pair of 4000 lumen lights to be powerful, but this blows them out of the water. 

Why would you want or need so much light? I would say the main reasons are either for lighting very large objects in dark environments, such as deep wrecks or in interior of caves, or in shallower, brighter environments the lumen power comes into play to compete with natural light. Still photographers know that you need as much strobe power as possible to fill in the foreground shadows, especially when shooting into the sun. I've always been interested in achieving a similar look in video, and up till now that's been very difficult.

The Orcalight is not particularly small or light unit, but there again that is to be expected for such a powerful beast. The unit I tested is an umbilical arrangement, where the battery can be fixed either to the side of your cylinder or clipped to your BCD. Underwater this arrangement is fine and I found it didn't affect my buoyancy much at all. I think officially it is quoted as 200gms negative. The only problem I encountered was boat entry and exit from the water was slightly complicated when it was very choppy as I was effectively attached to the camera. However, Orcalight have since announced a self-contained unit, which should eliminate this problem. 

In use the unit was simple and reliable. I had no issues. It came with two lenses, a 60 degree and a 90 degree. I found the 90 degree sufficient to cover the FOV of a 17-40mm lens on full frame. I believe a 120 degree lens is also now available, which would suit those using a fisheye lens. Note the angles are horizontal field of view, rather than the diagonal 180 of a fisheye.  The light output was great and definitely a step up from anything I had used before. At 8-10m depth and beyond with bright tropical sunshine, the light balanced well with the natural light, and coverage was even. I was able to shoot off some stills as well- see attached pic below. Depth around 12m, ISO 200, 1/100th f8. 

 

 

I only managed a couple of dives with the light in the end as I was also shooting stills, but here are a few clips- 

 

 

It left me itching to shoot more with it, and I feel it has the potential to help create some really unique shots which weren't previously possible. This is particularly true with 4K video where there may be the potential to pull decent quality stills from the video- helpful when you need to shoot both with limited underwater time.

 

Ethics Statement: I have no association with Orcalight. I was kindly loaned the unit by Alex Tattersall of Underwater Visions, and Shane Newman of Orcalight provided very useful tips and is extremely responsive to requests for information.

 

 

 


Large Stingray ID required

11 March 2014 - 04:48 AM

Hi Folks,

 

Anyone any good at IDing stingrays? This biggy was almost 2m across, shot back in 2002ish I think in the Gulf of Masirah, Oman. Having filed it away and not thought much about it, I then saw a doco about Mozambique, saying this was the first time Small-Eyed Stingrays (Dasyatis microps) had every been filmed at that this was the only place they'd ever been seen alive. Of course, my one is probably just something different and common as muck......

 

Anyway here is the video I shot in Oman:

 

 

Compare with a video from Mozambique:

 

 

This was not the only one we saw, there were several at the surface, often shadowed by a smaller ray (male following a female?) and I've seen them on several occasions.


Red Sea Reef in 3D on youtube

06 February 2014 - 10:55 AM

Hi All,

 

I've been experimenting with low budget 3D underwater for a while. Here's a compilation on youtube:

 

 

It suffers from the usual youtube compression problems. I'm interested to see how it works for people with 3D displays or TVs. I found I had to tick the 'swap left and right' box as well as selecting the appropriate 3D display type. best at 1080 obviously.

 

Feedback welcome. I know there are a few slightly problematic shots in there.

 

Thanks