Measuring rolling shutter: put a number on this issue!

[CaptainHook]

We were asked about the Micro Studio 4K, 9.9ms for that camera.

 

[Samuel H]

Added. Thanks!

 

[starcentral]

That's handheld, I can't take a measurement I'm afraid. It looks mediocre at best, that's all I can say.

that's quite an understatement.

Looks absolutely horrendous. Worse than any camera I've ever seen. honestly.

 

[geffyb]

that's quite an understatement.

Looks absolutely horrendous. Worse than any camera I've ever seen. honestly.

Way better than some a6300 videos I have seen. Also you can put it into sport mode which significantly reduces rolling shutter at the cost of some DR.

 

[shijan]

i find ALEXA PLUS rolling shutter test https://www.youtube.com/watch?v=Xm7PLBgHkvc also Alexa, Red MX & Sony F3 test https://vimeo.com/20899638
Samuel, can you add it to list? to download youtube video you can use free app ClipGrab or somethin similar.

 

[Samuel H]

Thanks! I just downloaded both clips, but won't be able to take the measurements until Monday.

 

[Kholi]

I suppose that readout speed for 2K crop is something I noticed, but thought I was crazy, and goes a long way to figuring why I love the hell out of 2K mode on the camera so much.

Was almost going to dedicate it to shooting 2K straight-RAW or XQ... now, I'm officially going to buy some S16 glass.

 

[Kholi]

Also, nice work Samuel! Your times were super close!

 

[Samuel H]

Thanks!

 

[Dr_Jon]

Don't know if it's enough to be any use, but 5Dmk4 - https://www.dpreview.com/news/70570...elf-canon-eos-5d-mark-iv-rolling-shutter-test
Doesn't look great.

 

[Samuel H]

Thanks! I can't take measurements from that because it's handheld, but it does look pretty bad. Like the a6300, as they say in the video.

 

[aldolega]

Would this work for the measurements, for the GX85?

https://www.youtube.com/watch?v=NVdgdLJS68Q

 

[Samuel H]

It's perfect. I'll check it out this afternoon.

 

[Dr_Jon]

Hmmm...
http://global.canon/en/news/2016/20160831.html

"Canon develops global shutter-equipped CMOS sensor"

"...consider deploying it in the field of video production for cinema production applications, TV dramas, commercials and more."

 

[Samuel H]

It sounds great, but it reminds me of this announcement, which took two years to become an actual product (this one). Though that one came with sample videos. And not all such announcements become an actual product.

 

[Samuel H]

GX85 added: 28.9 ms in 4k (much slower than GH4; not good but still better than most current Sonys) and 15.4 ms in 1080p (so, great backup that I would s*%tch to for those few shots that have a lot of motion and won't be detailed anyway because of blur)

 

[geffyb]

Apparently the NX500 has impressive performance:


1080p30 20ms
1080p60 20ms
UHD@30 17ms
DC4k@24 20ms
DC4k@24 - hacked to 2.5k@24 8ms



https://www.dpreview.com/forums/post/58263916

I purchased one to confirm, will post RS video samples when I get it. Hope the 2.5K performance can be confirmed.

 

[Samuel H]

The problem with the NX500 is that it had a huge crop, at least at launch. Apart fromthat, it was a really nice little camera. Let us know how you like it

 

[geffyb]

The problem with the NX500 is that it had a huge crop, at least at launch. Apart fromthat, it was a really nice little camera. Let us know how you like it

That's the thing, the 2.5K mode is not cropped, so if it's a 180 mbps 2.5K Super35 image with a 8ms rolling shutter that image would be a dream.

 

[Samuel H]

That sounds great indeed. It's such a pity that Samsung let the NX line die. Letting it open for hackers to add all kinds of features would have cost them very little and would have made them a very strong contender in lots of niche markets.