Stacking step-up rings

Started Nov 9, 2004 | Discussions thread
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Herschel Forum Member • Posts: 89
Stacking step-up rings

I'm thinking about getting a 77mm Canon 500D closeup lens for my 80-200 AF-S. With a 72-77 step-up thread adapter, it will also fit the 72mm threads on my 24-120VR. What about my 50 f1.8? It has 52mm threads, and I noticed there's a 52-72 adapter so I can "stack" it to the 72-77.

The other obvious alternatives - go with a 52-77 converter, or buy a 52mm version of the 500D. The few mm added will act as an tiny extension tube, but other than that is there any downside to stacking the adapters?

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