rolling shutter hxp300?

I know you can't totally eliminate rolling shutter artifacts - I just hope Panasonic can reduce them to Red or Sony levels. Sure is an excellent camera, otherwise, and will definitely pick one up, if the artifacts can be reduced.
 
Kenn,

In my experience the level of rolling shutter artifacts between the RED and EXs are quite different.
We'll see where the 300 stands.
 
mrbrycel said:
What is the smallest size CCD that it is possible to fit 1920x1080 pixels on?
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The limit as I understand it is about 1.5 million pixels for interlaced, and about .7 million for progressive, at 60hz, when talking about 1/3".

For 1/2", you can get 1440x1080 in progressive.

In 2/3" you can get the full 1920x1080 in progressive.

The Panavision Genesis's CCD's are equal to a 35mm movie film frame right?
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In size, yes.

I read that the CCD is 5760x2160, but that the final output is still only 1920x1080.
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That's correct. It uses an RGB Stripe pattern (not a Bayer pattern) to deliver color at 1920x1080.

You have to remember, sensors are monochrome! If you had a 1920x1080 sensor, you could get 1920x1080 in black and white but that's it. That's why cameras use three chips; one for red and one for green and one for blue, so that they can see in color.

The Bayer pattern is a way to get a single sensor to see color, but you'll never get the sensor's stated resolution out of it, in color. Meaning, if you have a 4k sensor with a Bayer pattern, about the best you'll get out of it is 3k worth of resolved detail in color. Red's tests show that the 4K Red One resolves about 3.2K of detail.

So the RGB Stripe is a different type of sensor designed to deliver color resolution. Instead of a mosaic'd Bayer pattern color filter, it has vertical stripes of red/green/blue. It's designed to deliver a 1920x1080 full-color image. So it uses 1920*3 pixels wide (5760), and each column of pixels is striped red or green or blue with a color filter over the pixel column. While they could have made it 5760 x 1080, they chose to use double the vertical resolution as well so that it could fully resolve 1080 pixels worth of detail (in sampling theory you need to sample at twice the frequency to be assured of capturing all the desired detail, so it's sampling at 3x horizontal and 2x vertical, and the demosaic of combining the 3 horizontal separate-colored pixels into one composite pixel, and that gives them enough samples to create an accurate and ideal 1920x1080 image. You can't use spatial offset (or "pixel shift") with a single sensor, so no res gains are possible from that technique, you only get the res that the raw sensor pixels can deliver, and then you lose some of that in the demosaic or de-stripe process. (in other words, three chips can deliver more resolution than the stated pixel count of each chip; a single sensor can never deliver resolution equal to the stated pixel count of the chip).

RGB Stripe is a way of making a 4:4:4 image, but obviously it takes a whole lot of pixels to do it. Red uses a Bayer pattern and gets a higher-resolution image from the same number of pixels, but at the expense of total chroma resolution (Red's sensor can't deliver 4:4:4 color on its 3.2K image, it's more like 3:2:2). But at least Red can deliver a 3.2K image, which the Genesis' RGB Stripe can't. And while it sounds like 3 chips can deliver better results than one, (and they can), you have to understand that a single chip is the only possible design that a Red One or a Genesis could have been made with. The goal was to use film lenses, and you can't do that with a 3-chip prism design, only a single sensor could work.
 
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David, I find the RED much less susceptible to issues when panning, both had problems with fast object passing in front of lens.
It's a hard thing to measure and my observations were NOT scientific. This is merely an impression.
I haven't been a big fan of CMOS cameras, maybe the 300 will change that.
 
At the end of the clip, the vertical pillar warped a bit, but not too bad. Looking forward to seeing what the production version will do.
 
I do look forward to further testing. If it has the resolution of the EX1, Panasonic film gammas and it's a bigger camera that balances on your shoulder, it sounds like a winner!

Rolling shutter issues are pretty rare unless you are doing crazy camera moves or if you are shooting with lots of flashes going off (IMHO).

The price is also very good.
 
Is there "ueberhaupt" a possibility to give the HPX301 a firmware update ????
Via the USB input???

To be honest in both video's (HPX301 and EX1) I could not see a single artifact but maybe I am not critical enough ???
 
there are rolling shutter issues with the pre production camera, but I am confident they will be improved upon when released. So confident that I have placed an order for one.

There are many clients that I work for who use P2 and it's a great addition to my arsenal, not a replacement for my EX3, just a very worthy addition...coupled with a letus 1/3" relay it will be killer.
 
I was impressed with the lack of noise in your test. Thanks for doing it.
It would be cool to see a test with the JVC PL lens adaptor too.

Joe C.
 
I used the EX-1 to shoot football games last fall, between the fast motion and the horizontal lines from the stands, it was noticeable and annoying. Amazing images otherwise.
 
Man... Love the DOF on your shot Phil. Would be nice to not have to bother with an adapter.

I'm just wondering how the camera handles. Been so long since I used a shoulder mounted camera... certainly advantages and disadvantages with them..


is there a MSRP? Does it come with P2 cards and or anything else?... I'm also wondering if this might be a good studio rig type of package... kind of like the EX3.
 
Hi Justyn:

All of that is spread all over the site:

1. MSRP - U.S. $10,700.00 including lens and viewfinder. Does not include case, tripod plate, batteries, charger, AC adapter or microphone.

2. Does not come with any P2 cards, at least so far

3. Panasonic has said that they will release a true studio package for this camera as well

Dan
 
so around 10-12 K for a fully working package? and will there be an updated P2store type device or harddisk recorder? The original p2store was very reliable but not as functional with the need for more media space.
 
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