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RF 50mm f1.2 users (and probably EF version as well), do you use a protective filter on it?

Started Oct 13, 2020 | Questions thread
(unknown member) Regular Member • Posts: 333
Re: RF 50mm f1.2 users (and probably EF version as well), do you use a protective filter on it?

Master619 wrote:

raytracer81 wrote:

I'm more concerned about dust getting into the gap around the extruding front element. But putting a filter brings another question, where does the air go when the front element extrudes? Will the air get suck into the lens?

Yeah that's exactly my concern, my previous wording might have been confusing. I'm fine with some dust inside my lens, I know they won't affect image quality (maybe only affects resale value). But dust inside that gap could be trouble some, they could create friction and causing slower / less accurate autofocus?
The air pressure thing is another thing I'll need to think about, thanks for noting it.

I have the RF 50mm f1.2 and put a filter on as soon as I got the lens. The gap around the front element definitely collects dust, and it's a small price to pay for the added dust protection if nothing else.

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