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Canon R6 AF Hunt / Failure with Horizontal Lines in Landscape or Vertical Lines in Portrait Orient

Started Feb 7, 2021 | Questions thread
OP JLGRAPHY New Member • Posts: 4
Re: Canon R6 AF Hunt / Failure with Horizontal Lines in Landscape or Vertical Lines in Portrait

moon1029 wrote:

JLGRAPHY wrote:

Hello,

I have a new R6 with 28-70mm F2 that I pick up about 2 weeks ago – was a Nikon shooter for 10+ years, gave up 2 bodies and primes for this new setup, been very pleased so far (minus the ergonomics and UI lol).

I recently noticed a big flaw with this otherwise near perfect AF system. In portrait orientation with straight, defined, geometric lines it focus hunts and actually NEVER finds it, doesn't matter what focusing point or method – please view the short video linked.

I'm trying to find out whether it's a body or lens issue. Could someone with a R6 and any other lens or the 28-70mm F2 try the out the quick experiment and report back here? Thank you so much in advance!

Jason

https://youtu.be/KHm1hn4jBzs

*UPDATE*

I discovered that it's actually an issue only with horizontal lines (hence vertical in portrait). The AF will NEVER find focus with horizontal lines when held in landscape orientation or vertical lines when in portrait – no matter how defined and clean the edges are.

Looking forward to others' testing and findings. Thank you.

Thanks so much for posting this with the clear video illustration!

I felt my 5DIII focuses better in some situations but I can't tell precisely. I also had problem focusing when I tried to focus on the red ring of my lenses with my R6.

I've tried on my R6. It happens only with horizontal lines. It can properly focus in portrait modes (and thus vertical lines in landscape mode). Same findings as you on my R6.

Thanks for posting this, and others' replies regarding DPAF.

My pleasure!

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