I've been shooting film alot longer than I've been shooting guns...Pentax to me is synonymous with quality and price. Of the Japanese lens makers, Pentax's glass is the finest. When compared in price to the Germans, they still get the nod due to the price differences, they just lack the snob appeal.
When it comes to multicoating, Pentax is just about tops. There is no one better, except maybe the Zeiss T*.
In small, medium, and digital format cameras I won't buy anything that's not Pentax.