So, i'm about to buy a 70-300 L (having just sold my non-L to my sister after only owning it 8 months, it's downright blurry at 300mm...)


anyway, i'll quote directly from the review on this site first:


Fluorine anti-smear coating has been applied to the 70-300 L's front and rear elements... The 70-300 L was noticeably easier to clean than the other two lenses - I
basically wiped the oil right off the lens with only a swipe of a
microfiber cloth.
The fluorene coating is going to be especially useful in the field where
the dirt typically shows up most frequently...

but then:


A rubber gasket can be seen near the lens mount - this is a weather-sealed lens.
It has been confirmed to me that this lens, like most other non-super telephoto lenses, requires a filter for complete sealing.




So, i buy a lovely easily-cleanable lens, and then am forced to put a UV filter over the top of the lovely easy-clean element to waterproof it.


I've read so many pro/con UV filter discussions, and an article or two comparing different brands, but which ones are nicely easy to clean? If i'm going to be using this in the rain, i want to be able to clean off water specs from the front, nothing ruins a good shot more than 'lens-droplet-bokeh'.


Suggestions?