Tom wrote:
"Why?
It matters the least on the front of the lens.
It increases transparency by a little, but doesn't reduce glare at all,
unless you have a filter on."
Sorry Tom, I have to agree with C.H.
The antireflection coating on the front surface works both ways. It reduces
reflections from the front and therefore increases transmission as you say.
But it also reduces reflection of light bounced back from within the lens. In
order to reduce flare light, all surfaces need to be as low reflectivity as
possible.
Chris
Chartered Nit-Picking Physicist
Malvern
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