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Explore the world of vintage lenses through repair notes, real test shots, and detailed archive threads packed with images.

Explore the world of vintage lenses through repair notes, real test shots, and detailed archive threads packed with images.
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M42 AF Chipped Adapters and the T4i
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So, I've gone through two adapters from separate dealers on eBay, both chipped. Neither one of them works. I've only been getting the Err 01 code. I guess I have a few questions. First, has anyone used the chipped versions on their T4i? I ask this as none of the descriptions mention the T4i (650D) as compatible. Second, I'm aware eBay is hit or miss on reliability so who is a reliable seller for these chipped adapters? I've seen Fotodiox mentioned but even their product page doesn't specify the T4i in the description. I'd really like to be able to get a working chipped version. Thanks for any help on this.


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I use big-is adapter, and it works fine.


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I also recommend Big-Is & his adapters; easy to email ask if any of his chips work with T4i.


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Another vote for big_is, emailed enquiries always answered, very helpful and quality adapters. Cool


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Sounds good. Anybody have a link?


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mackeral wrote:
Sounds good. Anybody have a link?


Use ebaY Advanced Search to find items by seller big_is or click http://tinyurl.com/anpfb9g


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So, I just got my last adapter that I was hoping would work, and don't you know, it does... but not on the T4i. It was tested on both the T4i and a t3 and everything works on the t3 so it must be an issue with T4i's in general or at least mine. I guess I'll have to look into this some more.


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I've not had these problems with my 7D, I guess there's something about the T4i which doesn't play nicely with chips on adapters.
I used to buy nothing but chipped adapters, until I realised that the AF indicators were utterly unreliable. I thought it was me at first, then I did some tests using my tripod and remote and it turned out that when the adapter said there was focus it was lying to me. Sad

I've now dumped all the chipped adapters I had and use only the basic ones. They don't lie to me, I'm happier now.

If you want absolute accuracy you can't rely on cheap, chipped adapters. Wink

(I can't speak for the expensive ones, I've only used the cheapy ebay ones)


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It has to be something with the T4i. It would make sense as it is the latest DSLR released by canon so something may have been adjusted with them. Who knows. I'd love it if someone with a T4i could verify.