step up ring


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The_Cheat

Senior Member
Jan 19, 2004
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Singapore
#2
Step up ring is useful to change the thread size of your lens. Let's say that your lens have a diameter of 52mm, and most of your filters are 55mm, then a 52-55mm step-up ring would be useful in this case, allowing your lens to use the 55mm filters that you own.
 

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