46 - 49mm step up ring adapter for Sigma 30mm lens - how much do I need to spend?

Started Jan 31, 2013 | Discussions thread
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Jonn Quest
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46 - 49mm step up ring adapter for Sigma 30mm lens - how much do I need to spend?
Jan 31, 2013

I'm looking at a Fotodiox ring on Amazon.  It only costs $3.  Do I really need to spend more?  Other recommendations?

Thanks

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