Ask Matthew…
Q I bought the Sigma 24-70mm f/2.8 Art lens that you suggested and absolutely love it! What’s the best way to keep the glass clean and should I protect it with a polarizing filter?
Lene Herman
Glad you’re enjoying the Sigma! For keeping the front elements of lenses clean, I generally use a blower, like the Giottos Rocket (£13/$16), to remove any dust, then a soft, finely-woven microfibre cloth for
