A1U review

Wayne Morellini · June 25th, 2005, 10:24 PM

Shoot a pure blue or red pattern. In matter of fact shoot somebody with pure blue/red pattern on their clothing. The bayer relies on things having some washout, or change from pixel to pixel, so the algorithms can correctly predict the pixel changes, cut out green and you might as well shoot with 3chip DV. But as this is 4:2:0, not 4:4:4, this doesn't really matter that much.

I think the truth is that everything is a compromise so some people will buy the next model up. But for point and shoot, great. Philip, yep for doco the loss don't matter, for film they can use handheld stabilisers and tripods.

Radek, I would like to say on the behalf of everybody, thanks for your continuing efforts to bring us news on these cameras.

Wayne Morellini · July 29th, 2005, 02:08 AM

I'm actually not right here, and have come up with another method I am discussing over in alternative imaging:

http://www.dvinfo.net/conf/showthrea...561#post339561

Stephen Finton · July 29th, 2005, 08:25 AM

The resolution of HDV is 1440 x 1080. You guys keep on writing about 1920 x 1440...

1440 is stretched to 1920. This is the HDV standard. It's how they fit it in a 25Mbps stream.

The 5% reduction in pixels would be both horizontal and vertical if we are talking about electronic image stabilization but I thought the HC1 had optical...

Steven White · July 29th, 2005, 08:32 AM

1920x1440 is popping up because that's supposed to be the resolution of the CMOS sensor in the HC1/A1U.

-Steve

Stephen Finton · July 29th, 2005, 12:28 PM

Quote:

Originally Posted by Steven White

1920x1440 is popping up because that's supposed to be the resolution of the CMOS sensor in the HC1/A1U.

-Steve

That's weird. So are they downsampling or are they just ignoring the extra pixel count until you switch over to take a picture?

Douglas Spotted Eagle · July 29th, 2005, 01:20 PM

Quote:

Originally Posted by Stephen Finton

That's weird. So are they downsampling or are they just ignoring the extra pixel count until you switch over to take a picture?

The extra pixel area is ignored with video. I should have some images of this up soon.

June 25th, 2005, 10:24 PM	#16
Wayne Morellini Inner Circle Join Date: May 2003 Location: Australia Posts: 2,762	Shoot a pure blue or red pattern. In matter of fact shoot somebody with pure blue/red pattern on their clothing. The bayer relies on things having some washout, or change from pixel to pixel, so the algorithms can correctly predict the pixel changes, cut out green and you might as well shoot with 3chip DV. But as this is 4:2:0, not 4:4:4, this doesn't really matter that much. I think the truth is that everything is a compromise so some people will buy the next model up. But for point and shoot, great. Philip, yep for doco the loss don't matter, for film they can use handheld stabilisers and tripods. Radek, I would like to say on the behalf of everybody, thanks for your continuing efforts to bring us news on these cameras. Last edited by Wayne Morellini; June 25th, 2005 at 10:54 PM. Reason: "Radical departure", A low end camera that works well.

July 29th, 2005, 02:08 AM	#17
Wayne Morellini Inner Circle Join Date: May 2003 Location: Australia Posts: 2,762	I'm actually not right here, and have come up with another method I am discussing over in alternative imaging: http://www.dvinfo.net/conf/showthrea...561#post339561

July 29th, 2005, 08:25 AM	#18
Stephen Finton Major Player Join Date: Jun 2005 Location: Houston, TX Posts: 344	The resolution of HDV is 1440 x 1080. You guys keep on writing about 1920 x 1440... 1440 is stretched to 1920. This is the HDV standard. It's how they fit it in a 25Mbps stream. The 5% reduction in pixels would be both horizontal and vertical if we are talking about electronic image stabilization but I thought the HC1 had optical...

July 29th, 2005, 08:32 AM	#19
Steven White Major Player Join Date: Nov 2004 Location: Canada Posts: 547	1920x1440 is popping up because that's supposed to be the resolution of the CMOS sensor in the HC1/A1U. -Steve