GH2 14- 140mm lens faulty? Or camera?

[Fly-catchers]

I got my GH2 with the 14-140mm in April and have shot quite a few short videos on it. I got my Voigtlander 25mm f/0.95 in about mid May and used that exclusively till a couple of weeks back. Since using the 14- 140mm lens again I am finding I am getting these little jumps at random points in recordings. They last about one or two frames and either the whole of the image blurrs upwards or sometimes you get a image where the bottom half blurrs upwards and the top half softens but does not blur as much. Either of these look like jumps when played back.

Here is an example:

The first photo is roughly the moment before the jump followed by the jump and the final photo is the next frame after the jump. It was taken at 30mm on the lens, 1/50th F14 160iso.

The blip when it occurs has been on a variety of lens positions from WA to tele and ETC. And different apertures and in some cases shutter speed and iso. In all cases the OIS is on and the camera is hand held. I first saw this effect on a tripod shot with the OIS left on by mistake. But them have continued to see it on hand held shots since them. It is random but did not occur on around 250 short recordings 20 secs to 10 minutes done when I first got the camera. If it had occured from the start of using the camera I might well put it down to the limitions of the OIS- which might still be the case. But it seems strange that it should only have started to occur recently. Any ideas? Given its intermittent nature if it is a fault will imagine it might be of a nightmare getting it fixed! Or might the issue be in the camera? It is unhacked and both the lens and camera have the latest Panasonic firmware- 1.1 & 1.4.

Thanks

 

[Exice]

I had been having the same issue. With the MEGA O.I.S on anytime I panned or tilted and then stopped for a few seconds I would notice the frame jump. I may be the only other person that has actually had this issue as when I searched for a solution your posts were the only ones that came up. On other sites you were told that you should just run the camera without the stabilizer on. Bullhonkey(keeping it clean for the kids)!!! The whole point of the stupid thing is to stabilize the image and not have it jump around all willy-nilly.

So, I took mine into a service center and was told that there was an issue with the stabilizer in the lens. So to answer your question... your lens is probably faulty.

You should take it in for repair while you are under warranty. Yeah you may be without the camera for a time but at least you get a properly working lens. Also, while it's there get them to check out any other issue you've been having with your camera. I noticed you had some sound stuff going on too.

Good luck!

 

[Bern Caughey]

This is a well known issue with optical image stabilization.

IS cuts both ways. Sometimes it can make a shot, other times ruin one.

Choose your poison.

 

[Fly-catchers]

Amazon sent me a replacement GH2 kit. This has cured the "whistling noise" and "for now" the video jumps. I say for now as my original 14-140mm did not suffer from this problem for the first couple of months of use (about 250 short videos). But them began acting up. And seeing that a number of people have had this issue wonder whether it is a quality control issue. I also just wonder how reliable long term any of these electronic lens will prove to be as against purely manual lens. Hearing the constant motor noise it seems unlikely that any lens will remain without issues in the long term. I had been thinking of investing in the 7-14mm lens but not sure now- at least it does not have OIS!!

I accept that IS is far from from perfect. But this video jump was not normal behaviour from the OIS but a fault.