5D Mark II Team

Improvements & Gear

Firmware Update 1.2.2


  • Firmware Update 1.2.2 – EOS 7D
  • Canon Official Announcements
  • Download
  • Additional Comments


As expected and mentioned in our last article, Canon has just announced a firmware update that fixes the “iris jitter” issue that we previously reported here and here for the Canon 5D Mark II on April, 2010, especially affecting macro lenses (but not limited to that kind of lenses).

Fortunately all those efforts to report that issue did help all Canon customers using all HDSLR cameras.

The fix was firstly released for the EOS 5D Mark II and then for EOS 1D Mark IV and EOS Rebel T2i/550D.

Now it’s time for the EOS 7D! This firmware update also fixes other issues as detailed below.

We thank Canon once again for listen to their customers. That really makes a difference.


Extracted from Canon website:

Firmware Version 1.2.2 incorporates the following fixes.

  1. Fixes a phenomenon in which the set aperture moves when shooting movies in manual exposure mode using some Canon lenses (such as macro lenses).
  2. Fixes the AF point-selection behavior of the C.Fn III-7 (Manual AF pt. selec. pattern) custom function when set to [1].
  3. Fixes the AF point display for the viewfinder electronic level when shooting in the vertical position.
  4. Corrects misspellings in the Spanish and Thai menus for applicable products.


Please, before downloading and updating your camera, read the entire contents of Canon download page.

You can download the new firmware from here:



Thanks to all people who helped on this regard.

If you appreciate our efforts to help all Canon users, please consider supporting us.

Thank you very much in advance.

July 22, 2010 Posted by | Articles & Tech Info, CANON, EOS 7D, Firmware Updates, News & Info | , , , , , , | 1 Comment

Firmware 2.0.7 Released


  • Firmware 2.0.7
  • Thanks & Comments
  • Support



As expected and previously confirmed to us by Canon, a new firmware update is now released for the EOS 5D Mark II. According to Canon website, this new update:

  1. Fixes a phenomenon in which the aperture exhibits abnormal movement when shooting movies in manual exposure mode and Aperture Priority AE (Av mode) using some Canon lenses (such as macro lenses). (*)
  2. Fixes a phenomenon in which the exposure level shown in the LCD panel differs from what is shown in the viewfinder when shooting still images in manual exposure mode.
  3. Fixes a phenomenon in which the Wireless File Transmitter (WFT-E4 or WFT-E4 II) may not automatically power off when used for FTP transfers.

(*) Note: This is the “Iris jitter” issue that we have been investigating since end of March, published on our first report of April 5th and further report update.

Those reports, along with users’ feedbacks were sent many times to Canon USA and Canon Europe to show Canon that this issue was a fact.

As previously explained, it not only affects (affected) Macro lenses, but also some few other non-macro lenses. For your convenience we published a list of lenses affected here.

▪ DOWNLOAD Firmware 2.0.7 from here:


IMPORTANT: Please take the necessary precautions during the update process. As mentioned in the download page: “Before downloading the firmware update, please be sure to read the entire contents of this page.”


We want to thank Canon for making this update. We are very glad that Canon is really “listening to customers” (not always easy to make them hear, but they actually do and THAT makes a real difference, so thanks once again Canon).

We also thank those users who participated and helped with their time to make video tests showing the iris issue and also giving feedbacks on macro and non macro lenses.

As we published on April 5th in our original Report and later in the Report Update, the “iris jitter” issue was detected and fully confirmed in firmware 2.0.4.

We spent lot of time, to make the tests and further reports as much detailed and clear as possible, to discard any possibility of cameras or lenses failures. As we stated many times after so many tests, this was a firmware issue, and NOT a lens issue.

Now it’s time to update!


If you appreciate our efforts and find this site helpful, please consider supporting us to keep this site running.

Thanks a lot in advance.


May 25, 2010 Posted by | Campaigns, CANON, EOS 5D Mk II, Firmware Updates, News & Info | , , , , , , , | 17 Comments

List of Lenses Affected – Update 3


  • List of Lenses Affected by Iris Issue – UPDATE 3
  • Comments – EOS 7D too?
  • Feedbacks
  • Contact Canon



Due readers requests, we collected all possible feedbacks to make a list of lenses that are affected and not affected by the “IRIS jitter” issue when mounted on a Canon EOS 5D Mark II with firmware 2.0.4.

Please keep in mind this list was made in part with the feedbacks from many readers. We did not test “all” these lenses by ourselves so we cannot guarantee 100% of accuracy, but the “affected” ones are 100% confirmed.

Continue reading

May 3, 2010 Posted by | Campaigns, EOS 5D Mk II, EOS 7D, News & Info, Reports | , , , , , , , , | 10 Comments

Is Canon aware or not?


  • Is Canon aware of iris issue or not?
  • Report to Canon
  • Light Metering Inaccuracy in LV Mode
  • Additional Feedbacks



We have reported the iris issue/malfunction found on firmware 2.0.4 to Canon, like many other users have already too.

The “Iris jitter” is VERY easy to reproduce, as we explained with full details in our Updated Report and also the Original Report.

We included more than one video showing the problem, also proving that is NOT limited to “Macro” lenses.

Aren’t all those tests, details and videos enough for a serious investigation?

There is no chance for an inconvenience to find that wrong behavior if the tech support do that simple test.

But Canon seems to be not fully aware of this issue. At least that is what many responses given by email are telling to their customers.

Below are quoted responses received from Canon (we keep names private):

From Canon USA:

“Canon has not found any issues with firmware version 2.0.4. The information you found online is not from a Canon website, and we cannot guarantee its accuracy. If we do find any issues we will release a service notice or firmware update to resolve them.

Please write to us again if you have any questions.


Technical Support Representative”

From Canon Europe:

“Dear Sir/Madam,

Thank you for your email reply.

Be advised that Canon Europe have not issued such a release regarding “Iris Jitter” thus far and as such I cannot give you an estimated release date for a quality issue that has not yet been publicised by Canon Europe. If such a statement is made in due course by Canon Europe, it will be published via the FAQ section of the Canon Europe website.

Hopefully you have been sufficiently informed but should you have any further queries, please do not hesitate to reply directly to this email by navigating to the link below.

Best regards,

X – Canon Support Centre”

A previous response from Canon Europe:

“Dear X,

Thank you for your patience in awaiting my response.

I have been investigating your findings for the past week and can confirm that Canon Inc are aware of this issue and are currently investigating.

I understand this occurs predominantly with the 100mm f2.8 MACRO lens.


Thank you for your understanding.

To reply to this mail please use this link: xx

We aim to answer queries as soon as possible. Responses on average take 1 to 2 business days (or the next working day if submitting on a weekend or public holiday).

Yours sincerely,


Canon Support Centre”

CONCLUSION: it seems there is some lack of communication between different Canon departments/regions.

We do not want nor expect Canon to make any kind of public official statement, but we think the responses given to customers who contact Canon Tech Support should be consistent and NOT contradictory.


We encourage all users to report this issue to Canon.  Please check the Canon contact information included on the sticky post at the Home Page.

Feel free to include a link to this blog or our detailed reports. There is no chance for any inconvenience to reproduce the issue.

Please also read the small report below about light metering inaccuracy, it should be reported too.


Additionally we encourage all 5D Mark II users to do this simple test:

– Place your camera on a tripod, aiming to a fixed scene with constant illumination.
– Turn it ON and put it in M mode and turn Live View mode ON (set it to “Stills+Movie – Movie Display“, do not skip this important detail).
– Start changing the Aperture value in 1/3 step using the rear wheel, and check the metering bar displayed on the LCD monitor.
– You will notice that sometimes the metering bar does not change when you change the Aperture (even when the scene brightness does change) OR it changes in 2/3 steps instead.
– This inconsistency or inaccuracy doesn’t happen always, but very often. And it occurs with ALL lenses. Just “play” a bit with the Aperture value and you will notice it.

CONCLUSION: Light metering inaccuracy whilst in Live View mode (Stills+Movie-Movie Display). We fully confirmed it in M mode with all lenses, but probably occurs on Av, Tv and P modes as well.

Report it to Canon too. The more customers reporting, the more chances to get it fixed.


We received a feedback telling the latest firmware release for Canon 7D also suffers from the same iris jitter problem when using the Canon 100mm 2.8 Macro lens. We still have to confirm it (if you do a video test, feel free to contact us).

In few days we will publish a “List of lenses affected and not affected” by the iris jitter when mounted on the 5D Mark II with firmware 2.0.4. Stay tuned.

Feel free to post a comment or contact us if you find the iris jitter issue on a different lens and/or camera (in that case please be as detailed as possible).

Users of Canon 7D, 1D Mark IV and other models are of course also welcome!

Our purpose is to help ALL Canon users.

April 23, 2010 Posted by | Articles & Tech Info, Campaigns, News & Info, Reports | , , , , , , , | Leave a comment

Canon aware of IRIS issue?


  • Response given by Canon
  • Comments


Canon has been contacted by many customers in the last two weeks.

One member of the Canon community received an answer from Canon Tech support after the report he/she sent regarding the issue/malfunction found in Firmware 2.0.4 (for full details of the problem please read the original Report here and the Update here).

Below is quoted part of the answer given by Canon (we keep privacy of the sender):

“Dear X,

Thank you for your patience in awaiting my response.

I have been investigating your findings for the past week and can confirm that Canon Inc are aware of this issue and are currently investigating.

I understand this occurs predominantly with the 100mm f2.8 MACRO lens.


Thank you for your understanding.

To reply to this mail please use this link:  xx

We aim to answer queries as soon as possible. Responses on average take 1 to 2 business days (or the next working day if submitting on a weekend or public holiday).

Yours sincerely,


Canon Support Centre”


We encourage Canon users who have EOS 5D Mark II and the 100mm 2.8 Macro lens or any other lens experiencing the explained malfunction to report it to Canon (contact information can be found here).

Please note that this is a Firmware issue, not a lens issue.

Not all reports sent to Canon were responded, but we sincerely hope Canon fix this issue in near future (especially since it’s not limited to “Macro” lenses) and also add some additional “very possible” functions to the next update.

Thanks in advance to everyone supporting and especially to Canon for listening to their customers.

April 12, 2010 Posted by | Articles & Tech Info, Campaigns, News & Info, Reports | , , , , , , , | 2 Comments

Malfunction in Firmware 2.0.4 UPDATE


  • Introduction
  • Video Tests
  • Additional Feedbacks
  • Considerations


For a full detailed report, please read our previous article.

We have been receiving additional reports from other users regarding the malfunction we found on Firmware 2.0.4: the “IRIS jitter”

Not all lenses are affected. This phenomenon occurs much more often with Macro lenses, but it is NOT limited to Macro lenses.

Please note that this is a firmware issue, not a lens issue.

How to reproduce the issue

As we explained in the previous report, it is very easy:

Set camera to M mode, Live View to “Stills+Movie – Movie Display“, which is the correct mode to get “full manual control” on movie mode. Then turn ON Live View mode and rotate the focus ring, and you will notice the iris jitter watching it directly or watching the image on the camera’s LCD, also hearing the noise of the iris.

Remember the camera is now in “full manual mode” for movie/video mode, so the iris should not change “at all” unless the user intentionally does change it.

Clarification of the issue: It is not the iris/diaphragm is closing or opening a step and remaining there. It is a jitter: a fast open/close or close/open movement of the IRIS, mostly depending on the direction the focus ring is being rotated. It usually occurs in small values (1/3 f-stops), with the consequence that the image is also suffering that “jitter” when recording a video clip (or even when not recording), making the footage unusable.

Important note: the IRIS jitter is NOT related to the amount of light being gathered by the sensor, nor being metered by the camera, because the same issue occurs in a dark room or with the lens cap on.


Thanks to the users who made their video tests and sent the links to us.

▪ With a Canon EF 100mm f/2.8 Macro USM lens:
Image jitter can be seen on the camera’s LCD monitor lot of times
It’s also recorded on the footage, making it unusable. It is much easier to see whilst testing or recording than in this video test. The most evident ones at 0:48, 0:57, 1:01, 1:03:

▪ With a Canon EF 300mm f/4L IS USM lens:

▪ With a Sigma 150mm f/2.8 Apo Macro:

▪ With a Canon EF 100mm f/2.8 Macro USM in a dark room:

For obvious reasons we can’t post a video showing the issue, but those users who own this lens can do the test in complete darkness, following the instructions, and then hear the iris jitter lot of times.

Note: this test can also be done with the lens cap on with the same results.


Some feedbacks from readers regarding this issue with other lenses:

Canon 300mm 2.8L IS USM:

“Canon 300 2.8 IS + 1.4x TC – does it pretty much every time you cycle focusing from around 20m to infinity position
Canon 300 2.8 IS – does it at times, a bit randomly, not every time, seems to occur a bit more toward the near focus end”

Tamron SP Di  90mm 1:2.8 Macro:

“Firmware 2.0.4 iris jitter malfunction on Canon 5D Mark II tested also with the following lens in FULL manual mode (iris jitter appears nearly EVERY time when rotating the focusring, so it is totally unusable):

Tamron SP Di  90mm 1:2.8 Macro”


We are only reporting a malfunction with the sincere hope it will be fixed at some point.

We do understand the HUGE efforts made by Canon engineers with the latest firmware update, and we are really grateful for that.

This is a great chance for Canon, not only to fix this issue, but also to add some of the features improvements hugely requested by thousands of 5D Mark II users around the world. We have already mentioned them in our previous report (click here).

We love this extraordinary camera and we want the best for it, that’s why we put very big efforts on everything related to the 5D Mark II, because we know its huge potential.

We are confident this issue will be fixed and possibly some features added too on a new update, for the benefit of all Canon users.

We sincerely thank Canon for listening to customers and being steps ahead far of competition.

April 8, 2010 Posted by | Campaigns, News & Info, Reports, Tech Ideas | , , , , , , , , | 2 Comments

Canon Official Update Information


  • Introduction
  • Canon Announcement
  • Additional Thoughts



As reported before, the new Firmware 2.0.3 has some bugs/issues, especially related to the new Audio functionality.

Some active users have reported that to Canon (thanks to all of them).

And Canon got aware of it.


Important Update Information for
Firmware Update Version 2.0.3

” Thank you for using Canon products.

We have learned that some users of the Canon EOS 5D Mark II digital SLR camera are experiencing issues with Firmware Update Version 2.0.3.

We are working on a new firmware update to address these phenomena, which will be available soon. If you have not registered your EOS 5D Mark II, please register so we will be able to notify you via email when future firmware updates become available for download.

Canon always strives to provide the highest quality products to our customers. We sincerely apologize for any inconvenience these phenomena may have caused. We appreciate your kind patronage and support.”


THANKS CANON for the announcement and your commitment to give the best possible to your customers. We appreciate your efforts. All you are doing will reflect in a long term company profit.

This would be a good opportunity to get even some minor additional improvements, like:

– Option to have histogram overlay whilst actually recording
– Have audio meters showing whilst recording
– Easier/quicker way to change audio levels
– AutoISO limits (which is in our List of Fixes & Request since early 2009)
– Crop Video mode? (which is in our List of Fixes & Request since several months ago)
– Cleaner HDMI output, and at Full HD while recording if possible? (also in the list)

Of course, the most important is to fix every possible current issue

Custom Modes are essential for thousands of users.

March 17, 2010 Posted by | Articles & Tech Info, Firmware Updates, News & Info | , , , , , , , | 1 Comment

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