Compression Artifacts! What Compression Artifacts?

That's fine, just don't want it taken out of context.

The context of that picture was: a lot of detail should be visible in the back of the ship. To see what the ship actually looks like, I showed a pic from the HVX file where I found it brightly lit (or at least as brightly as I could find it).
 
I don't think there is any misunderstanding here. HDV can get into trouble in certain scenes. We don't shoot strobing lights every day but we do shoot while panning. SOMETIMES it will look bad in static frames. Will someone notice? Perhaps. I think if someone is not interested in compositing and special fx, HDV can work fine. And in a studio, we can skip HDV and go HD-SDI with uncompressed or DVCPROHD anyway.
 
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Even though it's only 4:2:0 the difference when color correcting is huge between HDV and SD. You can push it a lot further before it starts to degrade the image quality to a noticable amount.
 
Sorry to bring this thread back up, but I've noticed that there were some issues while panning with an HC1 at Best Buy. It was like a section of the frame couldn't keep up and split the image across and realigned once the pan was done. Very strange. I've also examined tons of clips on the HDV artifacting issue and really, it is noticeable if it happens in a big way, like a water fountain showing up bad. Other reports I've read also say that the artifacting is sometimes an on/off issue depending on the situation. Still, I wouldn't mind it since it seems pretty avoidable as long as you know what to avoid.

Though it may not seem like it to some of you, Barry's example was a good one. There's plenty of things this example relates to, such as explosion effects and how they would be affected by HDV artifacting. You wouldn't want to be filming an action film and "BOOM!" there goes the explosion and "FUDGE!" goes your footage. =D

Besides, as far as HDV goes, the Sony cams seem to be the biggest culprits, with the slight exception of the Z1U as it is more flexible. JVC's HD100U and Canon's XLH1 should be the only cameras to consider for the majority of HDV filmmaking. I'm not saying you can't use the Sonys, it just depends on your film's needs.
 
Jack_Felis said:
Sorry to bring this thread back up, but I've noticed that there were some issues while panning with an HC1 at Best Buy. It was like a section of the frame couldn't keep up and split the image across and realigned once the pan was done. Very strange. I've also examined tons of clips on the HDV artifacting issue and really, it is noticeable if it happens in a big way, like a water fountain showing up bad. Other reports I've read also say that the artifacting is sometimes an on/off issue depending on the situation. Still, I wouldn't mind it since it seems pretty avoidable as long as you know what to avoid.

Though it may not seem like it to some of you, Barry's example was a good one. There's plenty of things this example relates to, such as explosion effects and how they would be affected by HDV artifacting. You wouldn't want to be filming an action film and "BOOM!" there goes the explosion and "FUDGE!" goes your footage. =D

Besides, as far as HDV goes, the Sony cams seem to be the biggest culprits, with the slight exception of the Z1U as it is more flexible. JVC's HD100U and Canon's XLH1 should be the only cameras to consider for the majority of HDV filmmaking. I'm not saying you can't use the Sonys, it just depends on your film's needs.
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True the explosion is a good example in itself. But not to compare side by side with something else. I will say this, I own an Fx1 and have shot an asortment of things over the past 7 months I have had it, and not once did the camera blow a shot for me.
 
All HDV cameras have the same problems. The problem is always there. It's not a Sony thing. Also, you might want to see the footage on a 1280x720 display (or 17/19 inch PC monitor) to see if it's that terrible. This is a trully extreme test for HDV. Not representative of real life performance.
 
The more i keep shooting with this camera the more i like it. Will post clips and pics soon. For $5000 australian dollars this is one heck of a great camera.
 
Jack the problem you talk about is due to the rolling shutter that the CMOS uses this problem was highlighted already a long time ago over at DVinfo.net , it is a problem ONLY on the HC1/A1 because they use a single CMOS with rolling shutter (its not a format Issue).

I hope that helps

Anhar
 
Thanks Anhar, I probably should have made that clearer. I was talking specifically about the HC1, not HDV cameras in general. Though, the HC1 is an HDV camera, I thought it would highlight some of the issues with HDV cameras, guess I was wrong and it's about the single CMOS imaging. My bad =P.
 
Man, more and more this is starting to look like personal attacks instead of useful information.

...what the world needs now...is love, sweet love...no not just for the DVXusers...but for everyone (yes, this was the original lyrics on Burt Bacharachs' song)
 
I think it is worth the resolution loss. I also see less compression artifacts in the progressive modes. Never studied that in a scientific test though. I could be wrong:) Even with the resolution loss the camera does not appear inferior in vertical resolution to my JVC or the HVX to my eyes.
 
limo991 said:
I think it is worth the resolution loss. I also see less compression artifacts in the progressive modes. Never studied that in a scientific test though. I could be wrong:) Even with the resolution loss the camera does not appear inferior in vertical resolution to my JVC or the HVX to my eyes.
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Oh yes defiently in cf25 it compares to the 720 modes of the JVC and the HVX, but if your going for pure raw quality plain old 60i takes the cake. What do you mean vertical resolution, mabye you mean horizontal.
 
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