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Color Gels - Day 15

Today I've made a test of all the color gels that was delivered with the HONL kit of light modifies for Nikon Speedlight. Here is the set I bought:



All items fit into a small black bag. It contains two large modifies in gold, silver and black that can be shaped like a snoot or a bounce card, a smaller light modified in silver, two barn doors in white and gold, two honeycomb grids, two speedstraps and a set of color gels - two of each color. 


Okay - I chose a simple set-up. A white piece of paper, where i placed a small white sculpture. My Nikon D300 with AF-S 18-70mm f/3.5-4.5G ED lens was mounted on a tripod. A SP-900 was connected to the camera with a SC-29 cable enabling me to handhold the flash and control the light path. 

Color correction is a process used photography and other disciplines, the intention of which is to alter the overall color of the light. Without color correction gels, a scene may have a mix of various colors. Applying color correction gels in front of light sources can alter the color of the various light sources to match.
Gels are also used to make a scene appear more natural by simulating the mix of color temperatures that occur naturally. Color gels may also be used to tint lights for artistic effect, which is what I have done in this little test.

Let's start with a photo without any color gel - just the honeycomb grid (narrow beam). I have made no alteration to the photo in LR.



From now on I referring to the names that HONL has given their gels.

Just Blue:


1/2 CTB (Color Temperature Blue):


Moss Green:


Full +Green:


Bright Red:


Medium Yellow:


Heavy Frost:


1/4 CTO (Color Temperature Orange):


1/2 CTO (Color Temperature Orange):


1/1 CTO (Color Temperature Orange):



The main color correction gels are CTB (Color Temperature Blue) and CTO (Color Temperature Orange). A CTB gel converts tungsten light of 3200K to 'daylight' color. A CTO gel performs the reverse. Gels that remove the green cast of fluorescent lights are called minus green. Gels that add a green cast are called plus green. A 1/2 CTO gel is half the strength of a (full) CTO gel.

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Finn has some strong facial features that fits well to a high contrast b&w photo. I asked Finn to pose facing both with the left and right side tilting his face slightly to give him som options depending on where the photo need to be uploaded.



The we tried a more direct pose showing his strong hands and with less contrast.


If you live near Copenhagen give me a ping if you want a new set of portrait photos for your CV or LinkedIN.