Lee Filters warm up polyester set is made up of colour correction filters designed to warm up landscape and portraits. 

Supplied with plastic frames to fit the holder.  

Included:

Polyester 81 Standard
Exposure: ?
Conversion: 3300K to 3200K
Mired Shift: +9
Pale amber for fine adjustment.

Polyester 81B Standard
Exposure: ?
Conversion: 3500K to 3200K
Mired Shift: +27
Pale amber for fine adjustment.

Polyester 81D Standard
Exposure: ?
Conversion: 3700K to 3200K
Mired Shift: +42
Pale amber for fine adjustment.

Polyester 85C Standard
Exposure: ?
Conversion: 5500K to 3800K
Mired Shift: +81
Amber for major adjustment.