Significant Motion Blur, Canon R6. Caused by IBIS? Wide angle only.

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electronicsenthusiast Junior Member • Posts: 42
Significant Motion Blur, Canon R6. Caused by IBIS? Wide angle only.
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An R6 shows significant motion blur at shutter speeds between 1/60 to 1/200, occasionally on only the lower part of the frame.

Focusing is typically solid and sharp. Issue happens most frequently on an EF 16-35 f4L IS USM, usually at wider focal lengths. Occurs, occasionally, and differently, on an RF 24-70 f/2.8 IS USM. I do not experience the same issue on an RF 70-200 f2.8 IS, but could be because of smaller sample selection at those shutter speeds.

2/3 of the time, the entire image may show image blur, but 1/3 of the time, I see blur in the lower or upper frame only. See samples...

I never saw this issue with the EF 16-35 on a Canon 5D III.

Canon support acknowledge the issue, thinks it may be the sensor, and asked to send the body in for evaluation. He didn't sound confident. Is it worth sending in? Do you experience the same issues?

Note in the samples, parts of the image on the same focal plane and at several distances may be sharp above, or severely blurred below. Look at sharp edges to see the movement.

IMAGE 1: Sharp close and at a distance on top of frame. Red lettering middle left is passable. Lower 1/3 is out of focus. Note movement on mirrored glasses, lower right.

IMAGE 1: 1/80 f/11 18mm

Image 2: top of frame just fine. Look at the greenish statues, left and right. Bottom half blurred, top half in focus. The decorative front, and bush on the retaining wall are in front, and behind of the fence post pillars in the lower left of the image, 1/3 up, 1/3 right. The posts are all out of focus.

IMAGE 2: 1/200 f/6.3 16mm

Shot at f/6.3, the background was to be blurred. Motion blur upper half, passable lower half.

IMAGE 3: 1/125 f/6.3, 16mm

What happened here? Sharp left, motion blur everywhere else.

Image 4: 1/200 f/9 17mm

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Canon EF 16-35mm F4L IS USM Canon EOS R6 Canon RF 24-70mm F2.8L IS USM
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