Is this rolling shutter? EM5ii on silent: Micro Four Thirds Talk Forum: Digital Photography Review

Is this rolling shutter? EM5ii on silent

Started Jul 6, 2015 | Discussions

Nicholas Johnson • Regular Member • Posts: 387

Is this rolling shutter? EM5ii on silent

Jul 6, 2015

Going through my first 2000 photos (across two batteries) I see this strange scene. I expect I whipped the camera around to the subject and shot while still moving. Shot on silent. Maybe I'll have to use the physical shutter as my default after all. Though one in 2000 for my style of shooting might make it worth not wearing out that shutter with my spray and pray style.

Truck was in a parade doing maybe 3 mph.

Olympus E-M5 II Olympus M.Zuiko Digital ED 75mm F1.8

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Helen • Veteran Member • Posts: 7,606

Re: Is this rolling shutter? EM5ii on silent

In reply to Nicholas Johnson • Jul 6, 2015

Nicholas Johnson wrote:

Going through my first 2000 photos (across two batteries) I see this strange scene. I expect I whipped the camera around to the subject and shot while still moving. Shot on silent. Maybe I'll have to use the physical shutter as my default after all. Though one in 2000 for my style of shooting might make it worth not wearing out that shutter with my spray and pray style.

Truck was in a parade doing maybe 3 mph.

Yes, that's it. A potential side-effect of pretty much all silent shutters at the present time (the Nikon 1 models seem a bit less prone than most, since they scan a bit faster than the average).

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lattesweden • Veteran Member • Posts: 5,583

Re: Is this rolling shutter? EM5ii on silent

In reply to Helen • Jul 6, 2015

If I think correctly here, from a technical standpoint a person with programming skills should be able to construct a program/plugin that somewhat fixes this problem by side stepping each line horizontally on the long side of the picture to the next one with the right amount. Since the scanning time is different for each camera, the side stepping needs to be adjustable and a final crop will be necessary so one would loose some of the size.

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OP Nicholas Johnson • Regular Member • Posts: 387

Found more examples, though less severe

In reply to Helen • Jul 6, 2015

Looking through more 11 fps bursts and scrolling in Adobe Bridge it seems the rolling shutter is strong. Wobble wobble everywhere though you generally can't tell in a still. When I was on a four-wheeler, shooting with my elbows vibrating to the idling engine the effect was most noticeable with side by side images. Luckily the normal shutter is really quiet too. I wonder if any of this is exacerbated by the IBIS moving quickly or if its all my movement. The subjects were barely moving.

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OP Nicholas Johnson • Regular Member • Posts: 387

Re: Is this rolling shutter? EM5ii on silent

In reply to lattesweden • Jul 6, 2015

lattesweden wrote:

If I think correctly here, from a technical standpoint a person with programming skills should be able to construct a program/plugin that somewhat fixes this problem by side stepping each line horizontally on the long side of the picture to the next one with the right amount. Since the scanning time is different for each camera, the side stepping needs to be adjustable and a final crop will be necessary so one would loose some of the size.

Photoshop > Edit > Transform > Skew

Made the leaning line vertical and cropped. So there is a fix in case I get an image I really want thats rolled.

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Astrotripper • Veteran Member • Posts: 8,676

Re: Is this rolling shutter? EM5ii on silent

In reply to Nicholas Johnson • Jul 7, 2015

Note that this fix will work ok only on images where rolling shutter effect was provoked by the camera movement. This was the case here, since not only the truck is skewed, but the background in the distance as well, so everything was skewed pretty much the same.

If you kept your camera still and captured fast moving subject, you'd have a situation where you'd either have skewed subject or skewed background. I imagine fixing this would involve more photoshop work.

I expect this will be greatly reduced with the use of next generation of sensors, but until then, mechanical shutter is the only option when fast movement is involved.

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sigala1 • Veteran Member • Posts: 3,911

That's it exactly

In reply to Nicholas Johnson • Jul 7, 2015

Never use e-shutter if you are moving or anything in the picture is moving.

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ysal • Veteran Member • Posts: 8,769

Re: Is this rolling shutter? EM5ii on silent

In reply to Nicholas Johnson • Jul 7, 2015

Yes. Look at what e-shutter did to the wing tips of this hummingbird.

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yuki

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Bas brugemann • Regular Member • Posts: 101

Re: That's it exactly

In reply to sigala1 • Jul 7, 2015

Even the corrected image has some obvious skewing. Never knew this could happen.

sigala1 wrote:

Never use e-shutter if you are moving or anything in the picture is moving.

Good advice.

It has something funky on hummingbird wings though.

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