I have always been fascinated by camera flash, as it allows for you to capture photographs which would not have been possible due to the available light. This is particularly so for UV-imaging (indoors or in the shade). This post is about an interesting flash – Cokin Creative flash.
This is a flash I discovered more than a year ago, which is very rare and unique in terms of features. We all know Cokin for the various filters they make. But very few know of or have even heard of the Cokin Creative flash system. This was only made for a short period of time, and hence there are not many of these units out there. But if you look out long enough, they do pop up on eBay every now and then.
So what is so special about this flash? Well, it has 3 flash heads in one. And each of these heads can be angled in 5 different positions (directly to the side, two positions angled towards the side, one straight ahead and one angled in for macro). This allows for the effect of having light from three sides (left, right and top), to give an impression of multiple light sources. I have removed the filters (very easy to do) from the flash heads to allow for maximum UV output.
It has multiple connector pins on its base, as well as a switch to select the camera system you are using it on (Canon, Nikon, Sony, Pentax and Olympus). Mine is set form OM for my Olympus E-M5.
Weight: about 500g including batteries (4 AA)
Guide number: 28 metres (ISO 100)
Power control: Full to 1/16
Trigger voltage: 10.5V (this is safe for Olympus cameras, but I am not sure about other systems)
Mounting: Cokin A system (can be used with Cokin A step rings to mount onto lenses)
For a ‘ring’ flash, it is actually very powerful (most ring flash do not exceed GN 18 metres). As you can mount the flash heads in front of the lens, it can be even closer to your subject which is important for UV-imaging; the closer the flash to the subject, the more UV will illuminate the subject.
This is an example of the Bidens from my garden lit by this flash (ISO 200, f11, 1/60, full power).
Notice how there is definition of the UV-dark areas due to the directionality of the 3 heads lighting the subject.
This is link to one on eBay(UK) and one on eBay(US):