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Firmware update for EF-M 32mm f/1.4 lens?

Started Sep 20, 2018 | Discussions
Marco Nero
Marco Nero Veteran Member • Posts: 7,582
Firmware update for EF-M 32mm f/1.4 lens?

Does anyone think we'll need a Firmware update - since the new EF-M 32mm f/1.4 STM lens won't be in the existing camera's database for lens correction?
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The basic early opinions from people who have claimed to have shot with this lens have been positive.  They said it was sharp and I saw no obvious corner vignetting (so far) in the samples posted.  Those were not meant to have been edited.  But as an f/1.4 lens, I would expect to see some falloff in the corners (like most bright lenses tend to demonstrate).  My guess is that the M-series cameras will potentially need an update to accommodate the new lens... unless Canon saw fit to include it in advance in some way.  Anyone had a chance to check yet (since at least one member says he has picked his lens up already)?
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When previous lenses were released, occasional Firmware updates have surfaced.  I seem to remember one was needed for the 11-22mm lens.  I'm wondering if we'll see one (or need one) with the new lens.  I've used about 4 different "fast" lenses on my EOS M cameras ranging from f/1.2 to f/1.4 and f/2... and they all appeared to be recognized by the camera when connected.  And they all tended to offer an amount of light falloff in the corners - though somewhat subtle.  The in-camera lens correction resolved this most of the time with JPEGS.   The option of enabling peripheral correction with newer M-camera may simply be a generic one where the cameras can now recognize whether or not the lens requires adjustment without the need for Firmware updates for specific lenses.

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MyM6II Senior Member • Posts: 2,424
Re: Firmware update for EF-M 32mm f/1.4 lens?

Marco Nero wrote:

Does anyone think we'll need a Firmware update - since the new EF-M 32mm f/1.4 STM lens won't be in the existing camera's database for lens correction?
.
The basic early opinions from people who have claimed to have shot with this lens have been positive. They said it was sharp and I saw no obvious corner vignetting (so far) in the samples posted. Those were not meant to have been edited. But as an f/1.4 lens, I would expect to see some falloff in the corners (like most bright lenses tend to demonstrate). My guess is that the M-series cameras will potentially need an update to accommodate the new lens... unless Canon saw fit to include it in advance in some way. Anyone had a chance to check yet (since at least one member says he has picked his lens up already)?
.
When previous lenses were released, occasional Firmware updates have surfaced. I seem to remember one was needed for the 11-22mm lens. I'm wondering if we'll see one (or need one) with the new lens. I've used about 4 different "fast" lenses on my EOS M cameras ranging from f/1.2 to f/1.4 and f/2... and they all appeared to be recognized by the camera when connected. And they all tended to offer an amount of light falloff in the corners - though somewhat subtle. The in-camera lens correction resolved this most of the time with JPEGS. The option of enabling peripheral correction with newer M-camera may simply be a generic one where the cameras can now recognize whether or not the lens requires adjustment without the need for Firmware updates for specific lenses.

I think the camera downloads the data from the lens itself when it is attached.

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Torres Regular Member • Posts: 120
Re: Firmware update for EF-M 32mm f/1.4 lens?

The Canon software is now offering these kind of data updates.

Plug the camera to the PC and download the lens data.

thunder storm Forum Pro • Posts: 10,139
Re: Firmware update for EF-M 32mm f/1.4 lens?

This lens is designed for aps-c, the front element is not so large while the aperture is large. I think there will be noticeable vignetting.

I think Canon will release a lens profile. These profiles can come later than the lens itself.

I download these profiles to my desktop and upload it to the camera. It is not really a firmware update.

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Roland King Regular Member • Posts: 203
Re: Firmware update for EF-M 32mm f/1.4 lens?

thunder storm wrote:

This lens is designed for aps-c, the front element is not so large while the aperture is large. I think there will be noticeable vignetting.

I think Canon will release a lens profile. These profiles can come later than the lens itself.

I download these profiles to my desktop and upload it to the camera. It is not really a firmware update.

How do you do that? I have an app in my  Canon folder called 'EOS Lens Registration Tool' which I think I read once would update lens information in a camera. However when I just ran it, it says  'camera not recognised' so it  may be old junk from years ago.

In DPP there's a little button in the lens correction section which, if I remember the video series I watched the other day, will download the latest lens profile or profiles for DPP's use.

VisionLight
VisionLight Veteran Member • Posts: 6,226
Re: Firmware update for EF-M 32mm f/1.4 lens?

Roland King wrote:

In DPP there's a little button in the lens correction section which, if I remember the video series I watched the other day, will download the latest lens profile or profiles for DPP's use.

You are correct about this button. It will display a list of all Canon lenses and you chose which ones you want downloaded. I just checked and the M 32mm f/1.4 is not in the list (the newest 70-200 III appears to have been added only today, 9/21/2018). The M lenses are at the bottom of the very long list of lenses.

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Roland King Regular Member • Posts: 203
Re: Firmware update for EF-M 32mm f/1.4 lens?
1

ok I sorted out some of this stuff, still have as many questions as answers.

For my M50 you can upload 3, and only 3, lens profiles to the camera. Not surprising as they are each 16-18MB. To do that you connect via EOS Utility and go to the lens aberration settings which will let you choose from those you've already downloaded to DPP, or the  full list, which is downloaded from the internet every time you start. (from here if you're interested).

If you don't have a profile on your camera, the shooting settings for lens aberration are still available except the 'lens optimisation' one, so that must be what the profile is used for.  Either the camera does best guess for the other settings or the lens does have minimal information on it. Since it even works with my ancient EF 35 f2, I don't think it's on the lens. For some reason even if the profile is missing, the in-camera RAW post-processing still offers all options including lens optimisation, which makes no sense, but perhaps it doesn't really do anything. I think I'll try Canon support on this see if I can get some clarification.

In DPP you can indeed hit the little arrow in the lens correction box and pull in information about any lens you like, Canon nicely doesn't pull all 225 available profiles as that would suck down 3.5GB of hard drive. That list is updated every time you hit the button and indeed it doesn't yet have the 32 on it. The EF-Ms are at the bottom of the list, but you can also just hit the clear selection button and then select EF-M and only they are displayed.

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