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1

Thanks

That was clear and pristine. esp, the explanation on focal length :)

Submitted by Guest on Sat, 02/27/2010 - 17:33.
2

Lens specification 1:4 meaning

Please tell me what 1:4 means on a lens

Submitted by Guest on Thu, 09/23/2010 - 04:17.
3

Thank you!

Your explanations are crystal clear and concise. I have wondered about 1:4, can you please add a paragraph or two about that? Thanks again.

Submitted by Guest on Mon, 01/23/2012 - 08:23.

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