Canon R6 AI Focus (PULSING) - EF Lenses

[rascher]

I googled it, found that a lot of people are getting bad, blurry images from an anomaly in the eye focus mode. A focus pulsing occurs when keeping tracking active in the animal's eye.

The video below, from 10:00 on onwards shows exactly this problem.

www.youtube.com/watch?v=0lmjC07v8yI&t=471s  

In the Canon R6 manual it says that (ALL) EF lenses work with the use of the EF-EOS-R adapter. But nowhere in the manual does it report incompatibilities or focus issues related to the smart focus mode (eye focus).

drive.google.com/file/d/1RFP_2LmEDNksaPlnz7IiWuZjmFId8y2q/view?usp=sharing  

Link with images of a 100% static animal and still the focus shows (pulsing)

[FloridaDrafter]

Beautiful shots! I don't have the 70-200, but do have the EF 100-400mm L II and IIRC, I had similar results as far as keeper ratio when using the 100-400 adapted to the R5 & 6 when tracking, and better when in one shot with the fine AF point. I have never noticed any "pulsing" on the adapted EF or native RF glass. I have had a better ratio with the native RF lenses, especially the 100-500.

Newton

[Tronhard]

That is precisely my experience too.  Thanks for your support and comments on this.  I think lot of invalid criticism and innuendo is being bandied about and expanded upon by people who get a benefit from the click bait.  In this case, I think it likely the configuration and operation of the system being used, and is certainly not a systemic failure on Canon's behalf.

[rascher]

Hello John,

The distance is in the attached JPG images, referring to each shot. It's written on the right. I have f10 images of hummingbird at a shorter distance and he is completely focused, full body!!! This insect is only 4 cm long!!! It should be completely within the depth of field!

[rascher]

Hi Waddizzle,

You are completely wrong in all your statements. As soon as I have time I will separate an image of a hummingbird taken near this angle and draw your conclusions again. Opening, subject distance and compare after I post.

[rascher]

Newton,

See my instagram. All my recordings were done with a Canon 40D and most of my recordings with a Canon 5D Mk3 using the 70-200 f2.8 L USM with the 2x extender. Instagram images lose a little quality but even so it is possible to see the excellent results I have obtained over these years. If you didn't get good results with the 2x extender, I'm sorry, but you can't generalize and say that the problem was the 2x Extender. I see a lot of people here speculating, finding this or that, treating me like I'm a deceiver or something. It is unpleasant to read certain things by educated people or seem to be educated on the subject.

INSTAGRAM: rodrigorascher

[Waddizzle]

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@rascher wrote:

Hi Waddizzle,

You are completely wrong in all your statements. As soon as I have time I will separate an image of a hummingbird taken near this angle and draw your conclusions again. Opening, subject distance and compare after I post.

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FYI, 4cm is roughly equivalent to 1.5 inches.  Assuming that you are using a 200mm lens with a 2x teleconverter.  At f/11, you do not achieve 1.5” DoF until your at a distance of 10 feet, or 3 meters, from the subject.

[rascher · Accepted solution]

I realize that the JUDGMENT about myself and what I have placed is a very toxic judgment. I will not write anymore here. This was my first post on this forum and will be my last. If I knew I was going to read so much nonsense and wrong speculation about me and my resumes, I really wouldn't have made the post.

Life goes on….