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Possible Duplicate:
How does the lens diameter influence photo quality?

I'm wondering about 50mm f/1.4 for Nikons. The Nikon 50mm f/1.4D has a 52mm filter size. The Sigma 50mm f/1.4 has a 77mm filter size. There's a lot more glass in the Sigma.

So, does having a larger filter size mean that a lens will collect more light, and therefore produce better photographs?

merged by jrista Jan 20 '12 at 21:43

This question was merged with How does the lens diameter influence photo quality? because it is an exact duplicate of that question.

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