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Sony TRV950 / PDX10 Companion
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Old October 13th, 2005, 05:20 PM   #1
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Sony Pdx10

Just browsing some websites - I have a Sony PDX10, and I found this informations from

www.global-dvc.org
( http://images.google.co.uk/imgres?im...ial_s%26sa%3DN )

It says:

"One of the biggest differences is the way the chips are used for 16:9. The PDX10 actually does true 16:9 by using more pixels on the sides, instead of cropping"

Is this true?
I've seen else where you need to buy anamorphic thingy ma bobs (bit out of my depth there!)

Your help will be much appreciated!

Jason
www.jb-films.co.uk
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Old October 13th, 2005, 05:48 PM   #2
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Yes, it captures true 16:9 but, it does this but limiting the 4:3 chips. So when you capture a 4:3 picture it's not actually using the whole complete size of the chips - this is my understanding of it anyway.
It does however use the whole chip for stills.

That being said, it's a great little camera, that captures great images, but it's best left in 16:9 mode.
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Old October 13th, 2005, 06:33 PM   #3
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Ahhh i see.
That makes sense.
Bit unfair for the 4:3 shooters huh!!!

Yeah, its a great camera, so versitile and even better now i realise its true 16:9.

Cheers!

Jason
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Old October 13th, 2005, 07:02 PM   #4
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Hi Jason. I moved your thread to our PDX-10 forum. Browse around here for lots of information on this camera. See the following for a graphic explanation of how 16:9 is mapped on the PDX-10 CCD's:

http://www.greenmist.com/dv/16x9/10.JPG

You might also be interested in some tests I did awhile ago:

http://www.greenmist.com/dv/16x9/
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Old October 13th, 2005, 07:33 PM   #5
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Cheers Boyd. Will do some browsing. Also, thanks for you links. Theyw ere very helpful

Jas
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Old October 24th, 2005, 09:29 AM   #6
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I wouldn't exactly say it doesn't use the full 4:3 chips. Although that is technically correct, I feel it unfairly asserts that there might actually be less pixels used in 16:9 than in 4:3 when the opposite is true. When you check the link Boyd sent you will see the chips are sort of oversized to begin with.

When you go to 16:9 mode, you are actually gaining pixels the 4:3 mode isn't using on the sides of the chips. Pixel count is actually higher in 16:9 than 4:3. This makes it ideal for 16:9 use. I have never even used mine in 4:3 and I have been shooting with it for nearly a year and a half now.

I love mine too. Except for the light flare issue, which actually isn't as big a deal for me as it is for some, It's great. Enjoy.

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Old October 24th, 2005, 12:27 PM   #7
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I've hardly every shot 4:3 with my PDX-10 either. However the issue is that in 4:3 mode the camera doesn't use the full CCD's even though they are 4:3 native. Still photo mode is the only way you get to use all the pixels.
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Old November 8th, 2005, 04:16 PM   #8
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Boyd,

Thank you for those illustrations. So, the 4:3 vertical resolution is equal to, if not slightly better than, the 16:9 vertical resolution?

Everyone dumps on 4:3, but I actually prefer it to 16:9 (and the entire widescreen mania that seems to have gripped professionals and spectators alike). It's a classical shape and quite beautiful when used correctly. People seem to have forgotten that this is how cinema was originally shaped!

It sounds (and looks) like the PDX10 creates its 16:9 in the same way the XL2 does.
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Old November 9th, 2005, 01:06 AM   #9
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Yes, the PDX-10 and XL2 create 16:9 in a similar way but of course the XL2 has larger chips.

By all means, work in whatever format you like. Personally I've lost interest in 4:3... but that's just me. But if 4:3 is your thing then the PDX-10 is probably not a very good choice. You are really working with a tiny chip surface area in that mode.

Regarding vertical resolution, remember that it all gets written to tape 720x480. More pixels is certainly not a bad thing, but larger surface area is probably even better. If you prefer 4:3 then a PD-170 is probably a better choice IMO.
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Old November 9th, 2005, 11:49 AM   #10
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Is a camera's chip-size determined by the actual area of the chip the camera uses to make an image or is it the size of the chip including the area not utilized by the camera?


Also, Boyd, what are the effects of a smaller chip-size besides greater depth of field?
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Old November 9th, 2005, 08:11 PM   #11
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Well I'm not that knowledgeable about the tech details, but from what I understand smaller chips mean less surface for the light to fall on and therefore poorer performance in low light situations. I believe they are also more susceptible to vertical smear (a problem with the PDX-10), but that may have more to do with the chip design itself (ie: Sony's HAD technology).

Look at the specs for the camera in question. In the Sony manual they are providing specs (in milimeters) of the diagonal measurement of the physical chip. Sony doesn't provide any specifics on how the image is mapped to the chip; we seem to need to reverse engineer that part!
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