Filter confusion

[eyetrip]

Can someone explain to me the differences between these:
1a/b, 80a/b and 81a/b

I think the 1a/b is mostly for cutting glare and some blue?

but I am probably reading things wrong because right now I am under the impression both the 80 and 81 increase "warmth" under bright outdoor light? If not, what are these 2 best used for?

 

[ChroniC]

Can someone explain to me the differences between these:
1a/b, 80a/b and 81a/b

I think the 1a/b is mostly for cutting glare and some blue?

but I am probably reading things wrong because right now I am under the impression both the 80 and 81 increase "warmth" under bright outdoor light? If not, what are these 2 best used for?

I think you've got it right, cant find anything about the 1a/b but i know the 80 and 81 add an orange warmth over a shot.
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