The head on the F82 is slightly smaller than the F80, but the bristles are the same, it is not duo fibre, just has two-toned bristles. The bristles are shorter as well, but just as soft. The brush handle itself is slightly shorter too. You can get a more precise application with the F82 because the bristles are more dense and firm. The main difference is the head on the F82 is round whereas the F80 is flat topped, I think the F82 is easier to use to buff in your foundation because of the round shape. If you apply your foundation more in a tapping motion the F80 can be better since it is flat-topped, I use a combination of both methods.
Do I like this brush? I love it, I can see it quickly being added to my everyday routine for foundation and concealer application. If you liked the F80, you will like the F82 as well.
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Do you have this brush? What is your opinion of it?