[Konvas] 5 different HDSLR specs

[Adam P.Jones]

The best seems to be the 7D. The K7 only does 30p. If it did 24p your anamorphic idea could get interesting. :)

--- On Thu, 9/10/09, Adam Frey <thefirstrule at chainsawlinux.com> wrote:

From: Adam Frey <thefirstrule at chainsawlinux.com>
Subject: [Konvas] 5 different HDSLR specs
To: "Konvas Discussion List" <cinema at konvas.org>
Date: Thursday, September 10, 2009, 5:32 PM

Here's a list of the 5 different HDSLR specs:

The Canon 5D Mark II does:
1920x1080 @ 30p (29.97) - h.264
Image sensor - 36.0mm x 24.0mm CMOS Sensor
HDMI
Suggested Retail Price: $2699.00 (body only)

The Canon EOS 7D does:
1920x1080 @ 30p (29.97), 25p, and 24p (23.976) - h.264
1280x720 @ 60p (59.94) and 50p - h.264
640x480 @ 60p (59.94) and 50p - h.264
Image sensor - 22.3 x 14.9 mm CMOS Sensor
HDMI
Suggested Retail Price: $1699 (body only)

The Panasonic GH1 does:
1920x1080 @ 24P - AVCHD / QuickTime Motion JPEG
1280x720 @ 60P - AVCHD / QuickTime Motion JPEG
Image sensor - 17.3 x 13.0mm Live MOS sensor
HDMI
Suggested Retail Price: $1,499.95 (body w/28-280mm Lens)

The Pentax K7 does:
1536x1024 @ p30 - AVI (Motion JPG)
1280x720 @ p30 - AVI (Motion JPG)
640x416 @ p30 - AVI (Motion JPG)
Image sensor - 23.4 x 15.6mm CMOS sensor
HDMI
Suggested Retail Price: $1,299.95 (body only)

The Nikon 300s does:
1,280 x 720 @ 24 fps - AVI (Motion JPG)
640 x 424 @ 24 fps - AVI (Motion JPG)
320 x 216 @ 24 fps - AVI (Motion JPG)
Image sensor - 23.6 x 15.8mm CMOS sensor
HDMI
Suggested Retail Price: $1,799.95 (body only)

An extra few thoughts...
I haven't seen anything released from Sony with HD video, but it's hard to figure out who's making what right now, and I may have missed it.

This is all pure conjecture on my behalf and I'm only speculating, but it seems like the K7 is using it's "full sensor" (well virtually anyway) to resample with the 1536x1024HD, as the numbers equal out to exactly 1.5:1 ratio, which happens to match the chip size exactly. So maybe there's a better image in that? Again, not sure, but it sounds like a better way of doing the bilinear interpolation, if they actually are using a bilinear interpolation method and not a .

The Pentax K7 will also take a slew of lenses - especially anything that's compatible with M42 mount. I can't remember if anyone ever made it (Raf, maybe?), but if you have an OCT18 or OCT19 to M42 adapter, then this one may be for you. Also, even though the camera shoots a weird 1536x1024, if you slapped an anamorphic lens on the front of it, then you'd have a 3:1 stretch that you could play with (in other words: "widescreen").

Okay - I now have to run to teach my "Intro to Film" class...


Cheers,

Adam Frey
Director/Cinematographer
Crimson Chain Productions
http://crimsonchainproductions.com

"I've shot the Moon and lived to tell about it."



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