I've seen more reports of NEX-5 jerky AVCHD video. Sys specs are high enough (i7). AVCHD video looks very good from other camera's.

sorry 1/60 - ntsc?

the sample footage i saw was pal - and not to much of it either...

... ah ... sorry ... what are we talking about??

Jerky AVCHD so much I understand - but on the cameras LCD? - on a PCs (specs?) monitor (specs?) - and played by which player? - are we talking about 50i or 60i? - are you playing through the usb connection?- or from a SD card (specs) - or from your HDD? (viruses?) - or is it jerky in the Vegas preview? - or when it is rendered and to what format? - and played through what i.e. DUNE HD or PS3 or a PC with RGB connection or HDMI or DVI ...or????

Jerky everywhere. 50i (PAL). On Camera LCD, directly played on a PC monitor, preview in Vegas (where other AVCHD source footage plays smoothly), on a hardware multi media player.

Example footage:

What is the shutter speed?

Bob.

Bob, I used both 1/60 & 1/100. Example is shot wit 1/60.

Definately something wierd going on there.
Firstly 1/60 is technically the wrong shutter speed for 50i, it should be 1/50. In theory that shouldn'y matter but... What happens if you shoot 60i?

Secondly have you tried a completely locked off shot on a tripod?

Thirdly what flashes past the camera at around 17:00 for a couple of frames?

Bob.

Have seen the example 3 times in 720. Must be my eyes: I see no jerky playing - just some handheld shaking.

My Sony CX550v with an ACTIVE steadyshot switched on could have recorded this quite calmly - my other cameras with just optical steadyshot (no active s. ) would have been quite shaky too.

Did you use a lens with some kind of anti-shaking? (as far as I know only the 18-200 mm lens has the active mode)

60i on a PAL camera? Not possible.
Don't know what flashes before the lens, UFO's?
Haven't used a tripod with this Mickey Mouse camera.
I changed to MP4 format.

Problem is now, do I run into the same issues with the VG10 I am planning to get?

Could this contribute to the problem? I downloaded the YouTube video and inspected via MediaInfo - the framerate looks strange for a PAL video:


...Jerry

"Have seen the example 3 times in 720. Must be my eyes: I see no jerky playing - just some handheld shaking"
Watch the wheels of the bicycles as they pass the camera.
On the other hand what Jerry has found makes what we're watching on YT suspect.

Bob.

I think, that is what YouTube does with uploaded video.
Original file is mts 25 fps 16 Mbps 1920*1080

"Have seen the example 3 times in 720. Must be my eyes: I see no jerky playing - just some handheld shaking"

Ah - I see - so we are discussing "Sony NEX-5 Jerky AVCHD Video" on the basis of some handheld and fast shaking clip which has been through an original-to-Youtube and 25-to-30-fps and interlaced-to-progressive and God-knows-what conversion -
Well, here I have to draw back - my video skills are just not good enough for this type of discussion.
:- )

"I think, that is what YouTube does with uploaded video.

No, feed Youtube a standard framerate and it comes back the same, whether PAL, NTSC, IVTC (except it comes back VFR to afford them a miniscule amount of compression). Apparently the video you sent Youtube was rendered at 30fps, but you shot PAL?

Putting your Youtube video on the timeline shows that every fifth frame is duplicated, as one might expect from PAL->NTSC, and is causing at least part of your observed stutter. Youtube does not do this.


You would need to Match Media Settings in your Vegas Project, and render accordingly at the same frame rate. The defaults will not do this for you.

What can I say? I clearly mentioned the recorded media is 1080i 25fps (NEX-5 PAL doesn't even allow any other setting).
I am talking footage here, nothing has been edited or rerendered and doesn't look good on any of the stated platforms.

Please upload your original NEX5 footage somewhere (Mediafire, Dropbox) and let others look at it on their systems. I'm sure there is a simple explanation.

Meanwhile, here is what is on your Youtube example, suggesting 30fps was uploaded (are you sure it's what was on your camera, and not exported/imported using different settings?)

I've recently been playing around with an NEX-5. Shooting in NTSC mode, image quality is very impressive for such a small camera. Not perfect, to be sure, but very nice. Note that the NEX-5 shoots a progressive frame and splits it into fields, so 1080i is really 1080-30p in NTSC.