doidinho wrote in post #5719181
Picked up a Lee sample pack today and pulled out the filters you suggested. Can you point me in the direction of when to use what gel? is the CTO for indoor tungston lighting? What is the straw for? Some experimentation would be usefull, but I don't use the flash too much and would like to get an idea of where to start. Thanks.
Roughly speaking, flashes have a colour temperature of around 5000-5500k which is the equivalent of direct sunlight at noon. The lower the sun gets, the warmer the ambient light will get so the more CTO you will need to add to your flash to compensate. If it's early afternoon or late morning I'll use 1/4 CTO , if it's early morning/late afternoon I'll use 1/2 CTO or full CTO as the situation demands. If I need to use flash at sunrise/sunset then it can take anything from full CTO to double CTO to match the natural light.
In shade or on overcast days the ambient light can actually be cooler than the output of your flash - if you are shooting landscapes then 1/4 or 1/2 CTB can be useful to correct this difference, if shooting portraits then you might not want to bother as a slightly warm flash will not be as unflattering to your subject as an overly cool flash.
The CT Straw does much the same as the CTO but with a slightly more yellowish tint - they could help you with landscapes as they are often better suited to sunny shots when the sun is low but the sky is very clear.