How about the compatibility of latest Tamron DSLR lens on film body?

I've replaced my EF DSLR and switched to RF system, while I still own EOS body for film photography. Those heavy and luxury "L" lenses are too surplus for film's resolution and that's why I am about to purchase Tamron 17-35mm (A037) and 35-150mm (A043) for EOS-7. However, when I communicated with the owner, he told me that this lens cannot fit his EOS-55 at all, even control aperture is impossible. And a report from another forum described that SP35/1.4 (F045) didn't work compatibly with EOS-1V. I'm doubting if I can choose this kit or not.

Have you ever tried new Tamron DSLR lens, at least released after 2016, on film camera? Did it work well? Please help me and thanks.

MsLing said:

he told me that this lens cannot fit his EOS-55 at all, even control aperture is impossible

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Sorry, I have no concrete evidence to the opposite, other than that within the Canon EF system, compatibility is in principle 100%, save for two isolated issues:
1: Some very old Sigma lenses (from the early 1990s) used a different aperture control command which turned out to be dropped by Canon in later (virtually all) EOS cameras. This only applies to very old lenses, however.
2: Image stabilization (if the lens has it) may not always work reliably on older EOS cameras. Sometimes you have to turn the camera off & on again for it to work. It may not work at all in some cases (although no specific instances come to mind).
Other than that, I'm not aware of any compatibility issues.
I wonder if the person you've been talking to is confusing Nikon compatibility issues with the EOS system.

All the Tamron EF mount lenses fit on all the Canon EOS bodies .
However there has been discussions on some forums ( including here ) that they don't all necessarily function correctly.
When activated the camera gives an error warning or shuts down showing a flat battery, even with new ones inserted .
It seems that as the newer lenses are designed for use with cameras with the bigger batteries when AF and IS is in use the current draw is above what some battery options can deliver , and as the voltage is reduced temporarily, the cameras thinks the battery is flat .

I can't remember if it seems all cameras are effected the same way or just some .
Some cameras with larger battery grips might still work.

You'll need to do a forum search for the issue .
I think the issue has also been discussed in DPR , so might also be worth doing a search there as well.

neilt3 said:

It seems that as the newer lenses are designed for use with cameras with the bigger batteries when AF and IS is in use the current draw is above what some battery options can deliver

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If that's the problem (and it's different from the non-functional aperture issue mentioned in #1), the diagnostic to try is to disable AF and IS on the lens and verify it works that way. If it does, it may continue to work if AF is enabled once the camera has powered on, and then IS (if present) after that.

MsLing said:

I've replaced my EF DSLR and switched to RF system, while I still own EOS body for film photography. Those heavy and luxury "L" lenses are too surplus for film's resolution and that's why I am about to purchase Tamron 17-35mm (A037) and 35-150mm (A043) for EOS-7. However, when I communicated with the owner, he told me that this lens cannot fit his EOS-55 at all, even control aperture is impossible. And a report from another forum described that SP35/1.4 (F045) didn't work compatibly with EOS-1V. I'm doubting if I can choose this kit or not.

Have you ever tried new Tamron DSLR lens, at least released after 2016, on film camera? Did it work well? Please help me and thanks.

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I have a Tamron 45mm f/1.8 VC, Tamron 85mm f/1.8 VC, Sigma 135mm f/1.8 and the autofocus, aperture and/or image stabilization all work on my Canon EOS Elan 7E.

In the worst case scenario you could switch camera bodies for less than $100.

The resolution of modern lenses isn't too much for film if you use a nice high-res film like Acros or Scala and you've got a good setup to digitize it. It also makes it more plausible to shoot wide open. Pay attention to the level of vignetting these lenses have at each aperture if you intend to use them on film, most of mine require 1/3 stop to 1 full stop down from wide open to remove dark corners. And the vignetting wide open can also require exposure compensation in some cameras/metering modes.

I've used Tamron - SP 90 F2.8 Di Macro USD (F004 from 2012) on my Minolta Dynax 5 without a problem - as a matter of fact, it works much better on a film camera than adapted to Sony A7IV with LA-EA5 in terms of AF.
I've read somewhere a long time ago that in combination with some film cameras disabling in-lens image stabilization on the lens does not work in prevention of greedy battery draw - I can't remember though if that was the case with Canon or Nikon cameras, but somehow I think it was the case with Nikon being the culprit.
My friend had some cheap superzoom from Tamron (APSC) fitted onto one of the late 90's Canon ELAN models which made the camera going awry frantic even with the fresh batteries installed.

koraks said:

If that's the problem (and it's different from the non-functional aperture issue mentioned in #1), the diagnostic to try is to disable AF and IS on the lens and verify it works that way. If it does, it may continue to work if AF is enabled once the camera has powered on, and then IS (if present) after that.

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AF couldn't work, yet. He showed me a video but the lens work well on GFX.

neilt3 said:

It seems that as the newer lenses are designed for use with cameras with the bigger batteries when AF and IS is in use the current draw is above what some battery options can deliver , and as the voltage is reduced temporarily, the cameras thinks the battery is flat .

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This reason seems logical because there was no battery pack on his camera. I will search DPR's threads and confirm what I want to know.