Extreme Underwater Macro using a dSLR
By Guido Zsilavecz, November 2013
Going beyond your macro lense's ability of life-size reproduction on the sensor (1-to-1) is challenging and fun, revealing a world beyond what one normally sees. There are multiple ways of achieving this, and in this article we explore most of them. For article click here.
Experiences using the Pentax Optio W30 amphibious camera
By Guido Zsilavecz, August 2008
A need to photograph fish in rock pools for a research project prompted Guido to acquire a Pentax Optio W30 amphibious camera, capable for being submersed down to 3m. While the camera in general performs very well, some problems were experienced with getting proper flash coverage when close to subjects. This article discusses the problems and solutions. For article click here.
The SURG collecting jar and syringe system
By Peter Southwood, February 2008
Collecting small, sedentary, creatures up to 20mm long is often dificult underwater. In this article a collecting har and syringe system is described. Developed by SURG, it was tested extensively and found to be extremely effective. Furthermore, the low cost of the components and the easy assembly make it very attractive. For article click here.
False Bay Cerianthids (Tube Anemones)
by Peter Southwood, 2005
Peter noted in his log book on seeing his first cerianthid: "Things in tubes that look like anemones, but have short tentacles in the middle and retract when disturbed." It intrigued him, and he started finding out more about them. This article explains what they are. For article click here.
Improving macro photography using Canon A-series cameras in their housing and Inon add-on lenses.
by Guido Zsilavecz, May 2006
Canon's A-series cameras, like the A70 and A75 have quite good macro capabilities. These can be improved by using Inon add-on lenses. The problem is, the mounting for these lenses has a badly-designed diffuser, which causes large shadows. To overcome this Guido built his own, resulting in perfect, even coverage. In this article the problems and the solution are described. For article click here.
Further experiences with digital underwater photography and external strobes
by Guido Zsilavecz, September 2004
Since his previous article "Some problems and solutions for digital underwater photography", written in October 2003, Guido has managed to gain further experience, especially in the use of external strobes: he used his own slave trigger extensively both in local as well as international waters, acquired another strobe, and a different, TTL-emulating, trigger. His experiences using these various pieces of equipment are described in this article. For article click here.
Some problems and solutions for digital underwater photography
by Guido Zsilavecz, October 2003
After flooding his Nikonos V overseas Guido was "stuck" with the recently acquired small digital camera in its housing. Knowing the effects of backscatter when using the internal flash, he created a flash trigger, so he could use his Nikonos strobe. After much experimenting and playing he started getting good results again. In this article he describes the problems with digital photography and flashes and their solutions, and discusses other avenues he explored to gain that extra light underwater photography relies on. For article click here.