CTS (Color Temperature Straw)

Most commonly used to create a warmer color temperature than CTO.  Shifts towards golden rather than red.

Color Correction Gel to convert Daylight to Tungsten with a slight yellow tint.

Full CTS 

Lee 201

Rosco 3202

Cotech 201

A yellower (or less red) version of Full CTO. Converts 5500*K daylight to 2900*K.

  Light Loss = 1 Stop

Half CTS

Lee 202

Rosco 3204

Cotech 202

A yellower (or less red) version of Half CTO. Converts 5500*K daylight to 3800*K.

  Light Loss = 2/3 Stop

Quarter CTS

Lee 203

Rosco 3208

Cotech 203

A yellower (or less red) version of Quarter CTO. Converts 5500*K daylight to 4500*K.

 Light Loss = 1/3 Stop

Eighth CTS

Lee 218

Rosco 3216

Cotech 218

A yellower (or less red) version of Eighth CTO. Converts 5500*K daylight to 4900*K.

   Light Loss = 1/3 Stop