topic Re: R7 IBIS issues using adapted EF-mount Tamron lens in EOS DSLR & Mirrorless Cameras

R7 IBIS issues using adapted EF-mount Tamron lens

crispy9 — Wed, 02 Jul 2025 13:25:19 GMT

I recently purchased a new R7. I am trying to use a Tamron 90mm macro SP Di EF-mount lens adapted with a meike EF-RF adapter. Everything with the lens works just fine, but the IBIS is deactivated whenever using it. The lens does not have IS, and the menu option for enabling IBIS does not appear when I have this lens attached. When I use my Canon 18-55mm EFS lens on the R7 with this adapter, IBIS works and is enabled/disabled via the lens IS switch as expected. I think perhaps with the Tamron lens, the adapter is erroneously communicating to the camera that it has IS and that it is disabled. Does anyone have experience with a work-around for this problem?

Re: R7 IBIS issues using adapted EF-mount lens

deebatman316 — Wed, 02 Jul 2025 01:46:07 GMT

Stick with the Canon brand adapter. 3rd Party Mount adapters cause nothing but trouble. It could also be an incompatibility with the lens.

Re: R7 IBIS issues using adapted EF-mount lens

March411 — Wed, 02 Jul 2025 01:56:10 GMT

deebatman316 gives sound advice, I used the Meike adapter and it also had challenges. It went back and I picked up the inexpensive Canon adapter. I can only add that you may want to check to see if you have the latest firmware for your lenses.

Re: R7 IBIS issues using adapted EF-mount Tamron lens

crispy9 — Fri, 04 Jul 2025 17:28:13 GMT

I purchased a canon adaptor and it did not resolve the problem. The camera is still incorrectly detecting that the lens has stabilization and is deactivated. Bummer.

Re: R7 IBIS issues using adapted EF-mount Tamron lens

deebatman316 — Fri, 04 Jul 2025 17:34:22 GMT

If it were working correctly both IBIS & lens IS work in tandem. These 2 systems cannot work independently of each other.

Re: R7 IBIS issues using adapted EF-mount Tamron lens

March411 — Fri, 04 Jul 2025 17:34:30 GMT

Hey crispy, do you have a local shop that can check and update the firmware. That would be my next move.

Re: R7 IBIS issues using adapted EF-mount Tamron lens

crispy9 — Fri, 04 Jul 2025 18:17:22 GMT

The lens does not have stabilization. The camera is incorrectly detecting that it does, and also that it is deactivated. So IBIS is not active and I cannot enable it. Even with the canon EF-EOS RF adapter.

Re: R7 IBIS issues using adapted EF-mount Tamron lens

crispy9 — Fri, 04 Jul 2025 18:19:30 GMT

This lens predates Tamron's tap-in system and Tamron has not created any firmware updates for it.

Re: R7 IBIS issues using adapted EF-mount Tamron lens

deebatman316 — Fri, 04 Jul 2025 18:21:28 GMT

In my last post this was in regards to a lens with IS. Lenses without IS rely solely on IBIS if enabled. You likely have come across an incompatibility with the lens. You can reach out to Tamron about this and see if the firmware can be updated.

Re: R7 IBIS issues using adapted EF-mount Tamron lens

March411 — Fri, 04 Jul 2025 18:33:48 GMT

"This lens predates Tamron's tap-in system"

deebatman316 probably nailed it, because of the age of the lens and the inability to update the firmware it's incompatible with the R7 and most likely any of the R series bodies. I may be incorrect but I believe that the Tamron 90mm macro SP Di EF was released in 1997, it's a bit dated.

Re: R7 IBIS issues using adapted EF-mount Tamron lens

shadowsports — Fri, 04 Jul 2025 18:41:21 GMT

Greetings,

The R7 is particularly finicky with 3rd party lenses. Older lenses like his with certainty.

My recommendation would be to replace it.

Re: R7 IBIS issues using adapted EF-mount Tamron lens

March411 — Fri, 04 Jul 2025 18:42:29 GMT

I just checked the Tamron site for updates and found this:

Here is the link to that page. It does look like there was a firmware update but the R7 isn't mentioned.

Tamron Firmware

Re: R7 IBIS issues using adapted EF-mount Tamron lens

crispy9 — Thu, 10 Jul 2025 00:13:15 GMT

Yeah I think that this just isn't a lens I will be able to use with IBIS (though I'm still considering trying to mask pins on the EF-RF adapter). I guess I'm saving up for a newer lens.

Re: R7 IBIS issues using adapted EF-mount Tamron lens

March411 — Thu, 10 Jul 2025 00:35:37 GMT

The RF100mm F2.8 L MACRO IS USM is similar to your Tamron. I picked one up from the Canon Refurbished Marketplace and it was like new, excellent condition.

There is one in stock for $1079 now.

1/2000 and I still didn't get what I wanted from the wings 🙄 But the IQ is pretty nice for a lens at this price point. It was mounted on my R5