Panasonic DMC-GH1 - Debut

RekindlePhoto 18 Mar 2009 15:26
And the soap Guiding Light also uses the Canon HDV. Seems like more and more producers see the value in small, cheaper consumer cameras for broadcast work.
ironstrike 18 Mar 2009 16:28
lol I am poor, 3000 dollars is a lot of money for me.

I have researched the 5D camera extensively. I know how the firmware works, I know how the codec works, I know how the mirror, sensor, processor all work. Motion shots are great no artifacts, greenshots are great, color is great (and can be exagerated even more in post).... What specifically is wrong with the cmos on the 5d? or DSLR?

Don't make blanket statements "the cmos sensor is bad" tell us why its bad. In chepaer cams the avchd codec uses inter framming compression methods for motion shots (because the processor is not as fast) Thats why motion shots aren't as good,,,, but the 5d doesn't have that problem.

(Crank rules BTW)
JHDT_Productions 18 Mar 2009 16:34
Mark, I was hoping you would come into this.... LOL
ironstrike 18 Mar 2009 20:03
Yeah I see on the red forums and 5d forums lots of people say 'uncompressed' is the only way to go...and yet they have no imdb credits, they don't have any TV credits or published DVDs.......right..... hmmmm.
So many people don't understand how compression works, they think it means loss of production value for some reason.

If there is a stock footage site that sells uncompressed footage I would like to know about it. Sometimes when working on CG sruff I have to render uncompressed AVIs, and they are huge!!! A 15second clip is 4.5 gigs.
Normstock 18 Mar 2009 20:08
Thanks for the link Jake, just amazing.................it's incredible what can be done with a can do attitude ; D

Loved Crank 1 btw
ionescu 18 Mar 2009 20:59
1. The fact that a camera is being used for whatever it does not necessarily mean that is a good camera, it means only that it suits the specific needs of that user.

2. CMOS is mostly suffering from rolling shutter. Watch for yourself:

http://www.dvinfo.net/conf/attachments/canon-xh-series-hdv-camcorders/9455d1224617482-sony-hdr-fx-1000-better-than-1-004-big.jpg

and

http://www.dvinfo.net/conf/attachments/canon-xh-series-hdv-camcorders/9454d1224617482-sony-hdr-fx-1000-better-than-1-001.jpg

Could you read what is written on that tram? And that is not an interlaced effect as one could clearly see the waiting car.

Unfortunately those are the only pictures I could find. I wish I could see such a 100% still preview for each camera being praised. There is a lot of talk on rolling shutter effect caused by CMOS and one could find it by oneself on DVinfo and other sites.

3.HDV is accepted with varying restrictions for broadcast TV use. The HDV format was developed to offer an affordable upgrade path from standard-definition DV video to high-definition recording. HDV is based on MPEG-2 video, which compresses data both within each frame (intraframe/spatial compression) and between frames (interframe/temporal compression). HDV 1080i uses a recording data rate of ONLY 25 Mbit/s

Other HD codecs using lower compression ratios need more bandwidth and storage capacity for a given amount of video, requiring significantly more complex and expensive recording solutions. For example, the Panasonic DVCPRO P2 cameras use memory cards which can cost over $50 per minute of recording capacity, compared to a few dollars per hour for Mini-DV tapes. This cost differential has helped make HDV a popular HD recording format for consumers, independent videographers and low-budget TV programs.
On Discovery(which is not a local tv station nor a cheap wedding videographer) HDV source content is accepted if it is limited to 15% of a whole program and is shot with a 1080-line camera.

4. @Mark: I have been watching
that I understand you shot with your 5d and I can see a lot of motion artifacts. Am I seeing wrong, is that caused by the site preview or this is how the original clip looks like? The full screen preview is very disappointing. And still, there is no fast motion in your clip.

I am bleeding. Help!
ironstrike 18 Mar 2009 22:15
lol OMG

Where to start....

You are confusing production value with data integrity.

LOL the rolling shutter effect (and interlacing effect) can both be fixed in After effects, with the time displacement effect..... and the 5ds is so fast its hardly noticable because the processor is faster. I only noticed it slightly at about 50mph.

You aren't supposed to read the side of a moving tram because there is motion blur. If you don't want motion blur you need to turn up the shutterspeed on your camera, that way there is less time exposure.
That is not compression.....That is motion blur.....

What you mean by "motion artifacts" is motion blur I think.... ???
I want a little motion blur. ???????
When you don't have any motion blur you get strobing which is bad.

That preview is new, and its streaming video ..... saying you notice compression is like saying you see dirt in the air because you are looking through a dirty window. ????

Yes I compressed that video as much as a I could and its still huge.
but you are missing the point. 500mb is still smaller than 4gig

When you are watchin a movie NO one goes up to the screen and pauses the projector to look for artifacts. Jpeg images are used on bill boards.... No one looks at the bill board up close. You look at it from far away.
The laws of http://en.wikipedia.org/wiki/Perspective_(visual) say that Objects that are farther away are smaller. You aren't supposed to look at a still up close When you look at a billboard the size (from your perspective) it has a certain display resolution in your "minds eye"...
dapoopta 18 Mar 2009 22:30
action packed post!
ionescu, do you have a video camera?

I think looking at the sales tells what buyers want. They buy from HV30 camcorders, and also from RED cameras. Not saying the quality is better in either, but the VALUE to the buyer is substantial enough to buy from an inferior camera.
vadervideo 18 Mar 2009 22:37
I personally always look at things from the pyramid eye on the dollar bill. - Okay, that sounds silly, but has some truth in it. What we are talking about is simply; "Is something worth the extra buck?" I hear lots of contradiction in these topics as well. You guys really need to clarify, which is more important - PV or Price and capability of equipment? - Thinking back to the old old days, when a guy would literally "crank" the camera by hand - the PV was obvious and required. Over the years as equipment got better and better, oh, darn... PV was still predominant. Now with yesteryear's capabilities even surpassed and in the consumer's hands, PV - yes, PV is the only thing that matters. I will take my cheap old SD 3CCD Sony and shoot good stuff, and still sell it today without issue. It's not the camera, the equipment or the bank behind it... it is always in the PV and PV comes from the guy that is using the equipment. A Red does not make a movie, a movie maker makes a movie - the RED is just a tool... same with everything else being discussed - these are tools - just because a hammer has some dings in it doesn't mean it can't drive a nail.
ironstrike 18 Mar 2009 23:10
Yes I agree, but I think a camera with a higher DOF and higher contrast inherently has more PV.... I have one explosion clip that is mostly black.. and it is only 4mb big. The reason its so small is because the color data in the black region was thrown out by the compression method.

I don't think that extra data would help its production value in any way.
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