Hi Roberto

Its a 15 consecutive frame pan in 24P, so this 15 frames amount to less than a second all up. However when you see it real time it is a reasonably slow pan, it takes about 9 seconds to get to the top of the metal post that holds the billboard, thats upwards...so its not entirely out of the frame (well within the slow pan recommendations)hower evn tho it's slowish, its also somewhat stuttery and jerky.(handheld) Even smoothed in Warp Stabilizer in CS6 it still looks kinda funky. I have done tons of smoothed shots but they always strobe...at 40 shutter and at 50 shutter, even after stabilizing them, better at 30 shutter tho, good...but definitely not perfect. If you note the dark car in the background (before the yellow sign)...moving at a moderate slower speed (30kh maybe), it has not moved that far thru those 15 stills. Also bear in mind that this is not an all Intra codec (its GOP6)... but all Intra does not look that much better (as far as panning is concerned).

@Roberto This may help somewhat too, its the clip those stills are taken from (scaled down to 32 meg) Its at 720P and lower bitrate (Gop6, 24P, Shutter 50...never higher than that) It has been smoothed in the CS6 Warp Stabilizer, so its improved on the original, but note that even tho its smoothed the bottom of the main billboard flickers and strobes as the camera pans up, and also the flicker-strobe of the white writing as the camera pans left ...almost jerking backwards and forwards (not so noticeable on the yellow writing tho). I know the later pans in this short clip are a little fast, but its the earlier part that is of interest. It starts approximately where those stills I sent you start. Here is the yousendit link https://www.yousendit.com/download/QlVpWmdndWM1R1AwZXNUQw

OK, I animated the frames into a GIF. It's not blurred and it stutters, of course. Fun but inconclusive, I'm afraid, because to see blur I have to magnify everything too much..

The attached close-up is waaay over-zoomed. I can't see any blurring but I'm not saying it isn't there.

Thanks for the clip. There's a bit with the close-up of the paperbark which wobbles and some jittery tree-leaves but for me not too much that I can really distinguish from jello and measure as I could with a vertical subject in edge-to edge movement.

@Roberto No worries mate, thanks for your time. Just doing A/B's with the same shots at 24P and 29.97 of the Dobro and another guitar pan with Sedna, Quantam 100, Flowmotion2, and Cluster 2E ...interesting

@zeko

You could shoot straight ahead at something going past the screen...

@Roberto I have straight ahead shots too, with cars (strobing) going by at 50shutter 24P.

Cheers

@Astro From information I gathered here on personal-view, it seems that a big problem is the sharpness that is always added in-camera to all micro 4/3 lenses, as even setting sharpness on theGH2 to -2 won't disable it completely. For this reason @LPowell suggests the use of a black diffusion filter with his Flow Motion, to reduce contrast in the same hi-con image parts where the in-camera sharpness is most active, without degrading the image too much. He suggests the Tiffen Black Diffusion FX3 filter, but other gradations are available (there's an entire thread here on that). Also Schneider makes some good ones. I bought a Tiffen Black Diffusion FX3 filter and it does indeed help with movement, even if it's completely useless on the lens I use the most, the Olympus 9-18, because the filter's pattern is visible in the frame as it's never completely out of focus. Now I'm looking at making a behind-the-lens net holder. It's not as easy as with PL mount lenses, but it might be feasible. Just wondering if anyone has gone that route already with m4/3 lenses...

Very interesting thread! What's the negative of using lower ss in 24p mode like 1/25 or 1/30 in order to reduce sstrobing? More blur in anything moving in the frame?

@Astro You shouldnt be using Cluster v2 its defunct witht the wrong tables. Try all three new Cluster v4 settings (3 GOP CLuster, 6 GOP Cluster and 12/15 GOP CLuster) and report back. Then try the new Crossfire (GOP1 on 24p). Let me know how all of those 4 get on - I will take a serious look into this problem this weekend.

All these new settings can be found here;-

http://www.personal-view.com/talks/discussion/3454/driftwood-quantum-x-settings-series-5-cluster-v4-mysteron-crossfire-quantum-9b-sedna-etc.../p1

Thanks. Nick

GH2 Shutter Test 1

Produce Motion Blur at Different Shutter Speeds

OK, I've done a little control test here - it shows how motion blur should look.

Procedure:

1. First I stuck a round, yellow sticker on the barrel.
2. I waited until daylight so I could use set up a lamp to set the speed of the rotating barrel.
3. Then, using daylight only, shot the spinning barrel at [edit: 50fps] 24fps - at shutter speeds of 1/50th , 1/40th , 1/30th and 1/25th of a second.

Observation:

• There was smooth playback throughout. Still grabs from VLC show a correct amount of motion-blur
• I am satisfied that, for fast moving images shot at **24P** 1080, the electronic shutter behaves as you would expect.

[Added] Table of threshold-processed images:

Note: The image grabs below are full-frame, un-retouched. Sorry they're so dark - (Daylight only, very overcast & GH2 was slightly closer than the lens's 2m minimum focus, with me standing at the edge of my veranda with a 1/2 metre drop behind me. I just needed to tighten aperture a bit so as not to fall over backwards!) However, we're not making pretty pictures here - just blur. All the shutter info is still intact.

Next, Test 2 - Test stuttering Video for presence of Motion Blur...(TBC)

@mo7ies

GH2, Sanity 5 @ 194Mb, Zenit Zoom with a .75 Diopter, Set to 24P but I ended up getting 25 cos of hack, I guess.

None of this matters - yet. I was sort of expecting rogue shutter behaviour from the GH2 but it performed like a champ.

I'll do next tests [24P] using a no-hack, I think - firmware 1.1 (there's got to be a benchmark to start with).

I must say it's a pain getting anything to function at a sync speed these days; I used to be surrounded by turntables, crystal-synced Nagras & Uhers. Now I'm actually contemplating filming circles on paper as they leave my printer! Any ideas of stuff we all have, let me know pls!

OK, not sure I follow. You said 50p originally?

Also, how fast was the barrel rotating?

As for the reference, I would not use a dot - IMHO, there has to be a vertical line, white on black or vice versa.