the 81A , this filter is used primarily as a "warming filter". it decreses
the color temerature of a scende ( make more red). Reducing the bluish cast
on overcast days or at high noon. The 81 Series filters can be used together
to increase effects. This is a good filter for warming up skin tones in
portraits and scenery.
Filter Factor: 1.4 or 1/2 stops
Kenko Tokina USA Warranty - Each Tokina lens is manufactured under precise standards and has been subjected to stringent quality control inspections throughout the whole manufacturing process. It is warranted to be free from defects in material and workmanship for a period of two (2) years from date of purchase from an authorized dealer. This warranty does not cover repair issues related, but not limited to: Damage caused by misuse, accident, or careless handling Damage caused by water, mold, or other foreign substance(s) Damage caused by tampering, repair, or attempt to repair, by any unauthorized repair service or individual This warranty applies to Tokina Manufactured Products only and does not cover any inconvenience due to loss of film, other expenses and incidental or consequential damages. Cost of postage, shipping, sea or air freight or courier service from user to Tokina dealer, distributor or Tokina Repair Service Center is prepaid by user.