Lady Tamron is a cruel mistress


EOS M(ediochre)
Jun 12, 2012
I have tried so hard to fall in love with the Tamron 18-200 for the EOS M
When I bought it hit the market at the same time like the 55-200 from Canon.
The Canon was plastic all down to the bayonet, the Tamron a steely tank.
The Canon zoomed smooth the Tamron had to be worked like squeezing the last drip of water out of a wet towel when wrenching the zoom ring.
So I gave back the Tamron.

Later I sold it for halfprice and I bought it again. It weight was more than the 55-200 + the Kit lense but real estate is scarce in my bag so I thought it is a fair tradeoff. But... b*** of a lens did not work with my new M3.

So I returned it and than they said they had fixed that problem and I bought this lens for the third time.

Guess what... yesterday my EOS M5 arrived. Guess what happens... Camera says faulty lens and shuts down.
Well 8 years of cursing Sigma's sparkle coated old lenses with more compatibility flaws than bennefits should have teached me.

For the moment: hands away from Tamron for M


Earl of Exposure
Dec 17, 2013
neuroanatomist said:
I'd recommend the Canon EF-M 18-150mm. I'm quite happy with mine.

Same with mine however focus lock at longer focal lengths is a challenge, I'd love to use the MF magnify with this lens while it's at 150 but unfortunately it only works if you have the green box first.


EOS M(ediochre)
Jun 12, 2012
To be honest I'm a Tamron Fan in Not for the M
Tampon always seems to have the Lens I warnt to upgrade to.
My old 17-35 L got. replaced with their 2.8 stabilized wide angle and my Version I 24-70 L as well with their new Lens. Hurts the pride to loose the red Ring.... but replacing my old L lenses with Canons successor lenses Horts my Bank Account much more than my pride Can be hurt


May 4, 2011
I actually thought about the Tamron 18-200 shortly after it came out, but the size and weight made me reconsider and I wanted to see if Canon had an equivalent lens in the pipeline. I didn't even think much about the compatibility issue (for some reason I thought it would be a bigger factor with DSLRs)...but reading this is reminding me why I have ultimately backed away from third-party lenses. Seems like you just never know what could happen.

I have since picked up the EF-M 18-150 and it is an okay lens optically...impressive range though and I would second the recommendation if you must have a one-lens solution for the M...nice and compact too, easy to travel with...


EOS M(ediochre)
Jun 12, 2012
Yes... The spell checker... I use an Oppo R11+. That is a Chinese Operating system with a forced on German keyboard layout doing German auto correct while typing English. Because of the Chinese input engine spell check "coorrects" words after I have typed two or more words ahead already.


Sep 1, 2014
reviving an old topic with a somewhat related question: has anyone tried the tamron 60mm macro on the M system (specifically M5)?
i'm considering it as an alternative to the EF-S 60 macro, which is similarly priced SH but a stop slower...
somehow i couldn't find anything related to that combination...
May 16, 2016
There were rumours that the 16-300 didn't work at all with the M series, so I'd try the 18-400. Once I'd got a decent copy (my first one was front focussing badly at 18mm) the quality is superb. Easily a match for my 18-150 and, of course, goes out to 400 (x 1.6, so 640mm by EF standards). I'm running am M5.

I can recommend you try one out


Mt Spokane Photography

I post too Much on Here!!
CR Pro
Mar 25, 2011
I've generally been happier with Tamron than Sigma, but have never had one on a "M". Of the 3rd party lenses, I've liked Tokina best, but they seem to be slowly dying out, they have few new lenses and my 17mm f/3.5 prime is pretty old now.

I did break down and buy a used Sigma 18-35 f/1.8 for my SL2 to use in very low light. AF is poor, and, adjusting the lens to be accurate on my SL2 is a onerous process that I have never found time to do. It is just OK when using live AF, but nothing special. I much prefer my Canon 15-85 so the Sigma just sits. If the SL2 had AFMA, then I could use the Sigma Dock based on the AFMA values and adjust it at the 4 distances. If I can find the time, I'll adjust it, but it is not a easy process getting it right. I was hoping to use FoCal to analyze a group of images taken at various settings of the dock, I may try that.


CR Pro
Jan 5, 2013
Just saw this post, Mt Spokane and am sorry to hear your Sigma 18-35 is not all you wanted it to be where auto focus is concerned. Personally, I have had no focus issues with my 18-35 Sig, using it on my Canon M50. When I bought mine, it came with a free doc but I have never needed it as auto-focus has worked great right out of the box. Here's a link to a recent photo album using this lens. While every photo is not perfect, I'm satisfied overall, with the lens performance.


Apr 29, 2012
We have six (!?) of the mk i Tamron 70-200 f2.8 is at work. They are great on the 70Ds we have - 85% of the performance of the Canon equivalent at 50% of the cost, but DPAF doesn't work on the C100/C200. I would imagine its the same thing with other M and RF cameras.

Has been a bit of a burned by 3rd party future compatability issue. Same thing happened with the Sigma Art 35mm, but fortunately the Sigma Art lenses can be upgraded via dock. I think the same goes for the G2 Tamrons but that doesn't help us with the G1 lenses we have.


It's not the gear.
CR Pro
Apr 18, 2013
Colorado, USA
Tamron upgraded the firmware on my G1 150-600. Now works on my M5 and 1DX2. Had it back in a week. Assume the same can be done here. A nuisance for sure, but they handled it under warranty.

Avenger 2.0

EOS M6 Mark II
Jul 30, 2017
After updated firmware (from tamron), the EF-M 18-200mm does somewhat work on the M50.
Face/Eye AF will give you random focusing errors. Single point/box AF works the best.
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