Done! Sent you the link on Vimeo.
Vertical Streaking: Got my camera back from Panasonic...
- Thread starter cordvision
- Start date
Cavemandude
Well-known member
There has been no solid proof of this, nothing even close.
Is this supposed to be the only camera in history that people think can have a digital sensor with variable image quality? Are people claiming this with any Canon, Nikon DSLR's or other Panasonic cameras? It's even gotten to the point of people thinking that one GH1 has stronger color output than another one. What's next, sharpness, white balance, contrast? This isn't a violin, it's a digital camera.
Randy
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I'm neither a scientist nor an engineer, so I can't say with any authority. However, given that I've had identical models of electronic equipment that have exhibited differences, I won't say it's an outlandish claim. I have no strong opinion either way. I had a $10,000 Fujinon lens for my camera at work that exhibited way more chromatic aberration than other models. I got a replacement. Same model, better image. So my own internal logic tells me it's possible this happens with imaging sensors. But again, I'll admit I'm not an engineer.
I'm still interested in what panasonic had to say when they returned the camera to the original poster with no improvement. I still believe unscientifically there are, however rare, variations between a certain number of bodies. I am sure if canon and nikon showed this obvious banding characteristic users would be more critical to compare, just like ourselves.
cordvision
Well-known member
It did improve, just not as much as I hoped for. Comparing my footage to other peoples footage lets me believe that the banding is at a normal level, and not worse than other cameras. For my style of shooting the GH1 isn't the right camera for me (I do a lot of low key lighting), so I decided to sell the camera...
Paul Hudson
Vacuum Tube Member
Why would people even consider this camera a viable option with these problem? I don't get it.
mojo43
Well-known member
Because most of the complaints come from people who underexpose their images and then pixel peep the result. They expect infrared...
Because in most situations, it's a non-problem. For somewhere in the vicinity of $1000, you get 1080p 24fps video that looks awfully darn close to 35mm film. And there's less aliasing and moire than the Canon and Nikon counterparts. And there's a flip-out LCD screen. And you can use inexpensive but quality manual lenses from Canon, Nikon, Olympus, etc. via cheap adapters. It's really quite an incredible little camera and it has made my life a very happy one for the year I've owned it.
It really confuses me. Another day I shot something and it was really noise with lots of banding, today I shot a test to see how bad was my banding issue and it was completely acceptable(hell yeah) even on Iso 1600. Does the camera sensor gets better with time?
I bought this GH1 more than 1 year ago and a simple did not used, maybe once every month at maximum.
I bought this GH1 more than 1 year ago and a simple did not used, maybe once every month at maximum.
Cavemandude
Well-known member
Did you shoot the same subject matter with the same settings in the same environment? Do you have pics showing the difference?
No, the sensor doesn't improve with age. This is not wine it is a digital sensor so it will not get better over time, you just unconsciously get better at avoiding situations where banding will occur. So maybe it is simply you that gets better over time.
Randy
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mojo43
Well-known member
What about Burn in???
Cavemandude
Well-known member
No conclusive proof that leaving your camera on for hours or days on end (which some people call "Burn In" and I call "Burn Out") does anything except put useless wear and tear on your camera. Several people here that know how to properly test a camera have tried it with no improvements.
Randy
Randy
This may have been written before, but in case it hasn't...
I was playing around tonight with some low light stuff and kept seeing vertical banding in the poorly exposed areas at 1000 iso (as is the norm). When I moved to a properly exposed zone, and then back to the poorly exposed zone, the bands were gone. I was able to reproduce this effect many times.
I was playing around tonight with some low light stuff and kept seeing vertical banding in the poorly exposed areas at 1000 iso (as is the norm). When I moved to a properly exposed zone, and then back to the poorly exposed zone, the bands were gone. I was able to reproduce this effect many times.
something everyone that is experiencing vertical banding should try. I have a 2009 model that only shows banding in grossly underexposed lighting. also high shutter speeds introduces noise
can you run through exactly what you did. settings, scene, and all. quite interesting.
Cavemandude
Well-known member
Well, since this is easily repeatable why don't you record of video for us to look at of this happening but this time put the GH1 on a tripod and don't move it, just adjust the lighting up and down (in a way that the amount light is repeatable like a light being turned on and off) to show the vertical banding not returning back after exposing it properly then going back to it being underexposed enough for vertical banding to be able to appear which it shouldn't.
Sort of a contradiction since the test is repeatable and the only way you can do that is if the banding comes back at some point when in the same low light situation. How long is the vertical banding supposed to go away since you admit it does come back by being able to reproduce this effect many times? What makes the vertical banding come back?
Randy
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Cavemandude
Well-known member
If it did work it would be easy to prove and you would see dozens of people posting "before and after" pics and videos showing that it does.
Randy
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paulhouston
Member
I have never noticed any serious striping issue. Well, I never had to use the top ISO setting, until yesterday evening when I recorded a piano solo recital in a church that was not well lit. I had to use ISO 1600 for the entire recital (about 2 hours). I did not see striping as a serious problem. Noise was quite obvious at this ISO setting, but not striping, maybe just a hint of it.
The following is a short sample. Wonder whether there are relatively large differences among individual cameras. I bought mine in Sept 2009.
The following is a short sample. Wonder whether there are relatively large differences among individual cameras. I bought mine in Sept 2009.
Cavemandude
Well-known member
Vertical banding shows up when it wants to show up not because you shot with a high ISO in a low light situation. That doesn't automatically guarantee banding problems, which many people have shown with their own pics and videos. But, just because you don't see it in a particular video or pic doesn't mean your GH1 is any more special than any other one. Now, put multiple GH1's in the same room shooting the same image with the same settings that causes vertical banding and let's see if any are special, that's the test I want to see.
Randy