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i am wondering what size of the filters should i go for? the 84/85mm ones or the 100mm ones. Since i am currently using a 60D with a 17-55mm with a 77mm filter thread, will i need to go up to 100mm filters?? I would see myself upgrading to a 10-22mm lens for my landscape works though. But it is also a 77mm lens. So would i need a 100mm filter for this UWA lens?
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