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Bricked a Canon EF-S 10-18


Studio G
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I think I just bricked my son's Canon lens! Today he bought a used Canon EF-S 10-18 STM for his Canon T4i, and it was working perfectly.

 

I thought I'd compare its IQ to my EF-S 10-22 which I was using on my a6500 via Commlite adapter. (Terrible blurring in the corners, don't even try it on mirrorless — no such blurring on the Canon SLR.) So I put the 10-18 on my a6500, and it wouldn't even recognize the lens. F stop was reported as 00, and no autofocus. No manual focus either, because this lens is focus by wire.

 

So I thought no biggie, and put it back on his T4i. But now it won't work on the Canon either — F 00, no focus, no red focus points, and when I try to click the shutter I get an error 01, communication error with lens. I tried all the tricks. Clean contacts, remove battery, re-mount lens, no joy. So I think this lens is ruined.

 

Anyone else experience this? Is there a fix for it, or do I have to give him my 10-22 in compensation?

 

Whelp, that's enough third party lenses for me.

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Guest Jaf-Photo

I think there was an issue with Commlite adapters frying circuitry a while back. Probably lucky it didn't fry the camera.

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Guest Jaf-Photo

There was a particular version of the Commlite adapter that caused damage to the gear. I believe they did a firmware update that didn't work and then a recall of the adapters. So it's a specific problem. In any case, you're lucky it only toasted a relatively affordable lens.

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    • Hmm that's pretty dreadful indeed... My 18-105 for sure is sharper than that. If I have time tomorrow I'll shoot an example with mine at 40mm f/8 side by side with the 16-55. Sold my kit lens when I bought the 18-105 so can't compare those anymore.
    • Thanks for the very useful information. The 16-55 tempts me, I can live with the absence of stabilisation, what holds me is the price tag. As always, there is not such a thing like a free lunch in life. The Sony gives performance at a reasonable size but with no stabilisation and higher price tag, the Zeiss is compact, stabilised and reasonably priced but lower performed, while the Tamron provides performance at very good price and stabilisation at the expense of bulkiness. 😀 All in all, I think I will give a try to the Tamron, once I have taken in my hands. Here are two cutouts taken close to the center of the picture. The sharper one is the kit zoom, the other is the 18-105 mm, at approximately the same lenght around 40 mm at /f 8. The difference is impressive and more impressive for me is that all the lenses in the shop had the same behaviour on two different cameras. At this point looks like a whole batch and not just a lens.  

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    • That's a pity and certainly doesn't match with my experience with the 18-105: mine is definately on par with the 16-50 kit lens (which on its own was as decent as I could expect from such a cheap lens). Sure, dont expect sharp corners especially wide open, but in the center my 18-105 left little to be desired across most of the zoom range. The 16-55 does beat it in every regard except zoom range though. The Tamron 17-70 trades blows with the 16-55 and might be the better choice in some cases. I went for the 16-55 because of the smaller size (I also found the 18-105 too bulky most of the time) and slightly wider FoV. My camera has a stabilized sensor so stabilized optics was no requirement for me. As you noted, I kept the 18-105 on my old A6000 for the occasional video project.
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