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Nicholas S.

Canon EF 100mm f/2.8 Macro USM + Canon Extender EF 1.4x II

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if i want to use Canon EF 100mm f/2.8 Macro USM with Canon Extender EF 1.4x II on S&S DX5

what ports do i nead ? A standard Flat Port + Extension Ring 40 is ok ?

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Nicholas

The Canon 100mm macro won't mate with that extender. You will need to get an indepedant extender such as Tamron. I have just bought the Tamron off Ebay for that very reason. Haven't used it underwater but can confirm it mates and focusses over the full range of the lens.

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Thank you very much about your advise, i really appreciate it. Assuming that i buy Tamron, what ports do i need?

Edited by Nicholas S.

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What I do is to use an extension tube (cheap and simple) and then the Canon 1.4 tele extender will work with the Canon 100mm macro lens. It also gets your focus closer. B)

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Sorry for delay in replying but the answer is that I don't know because I use Aquatica. If it is any help, the length of my Tamron 1.4TC (excluding the mount) is 18mms. Not sure if there are different models however - mine says C-AF1 MC4 on the side.

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