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Old Oct 15, 2004, 5:36 PM   #1
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I bought a Nikon Coolpix 3700 for its 640x480/30fps movie mode. I returned it because of the notorious sync problem (audio lags video by 270ms). Got the P100, but 640 movie images appeared soft, 3700's were way sharper. Some research on the web found the claim below, that Sony's 640 VX is only interpolated 320x240.Suspiciously, theP100 offers only 640 and 160 modes--no 320 option--I'm guessingto prevent direct comparison.

Is this outright deception from "It's a Sony"? I was unhappy about this enough to return an otherwise very good P&S camera andbuy backthe 3700 (AU$200 cheaper, and I'll correct the lag with an editor; Iwant and usetrue hi res video).

See also:

"Here's the skinny on the new MPEG-VX 640 x 480 movie recording mode. It doesn't look any better than 320x240 movies!!!!

"The MPEG-VX mode is an interpolated MPEG-HQX 320x240. And trust me.....I have tried and tried and tried to look for any difference between the VX and HQX (320x240) or even HQ (also 320x240) movies. There just simply isn't any discernable difference. I've even done back to back comparisons between the three (using a DSC-P1 and DSC-P9), and I have yet to find any difference.

"The most compelling evidence of interpolation is that the recording times for a 128MB memory stick are identical for MPEG-HQX and MPEG-VX. "


http://howstuffworks.shopping.com/xP...D-104205946500

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Old Oct 15, 2004, 11:29 PM   #2
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Use Fine not Standard and you'll see a BIG difference
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Old Oct 17, 2004, 3:44 AM   #3
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Fine mode refers to frame rate, not resolution. The three movie modes are:

1. VX Fine - 640 x 480 pixels, 30 fps
2. VX Standard - 640 x 480 pixels, 16 fps
3. Low res mode - 160 x 112 pixels, ? fps

My comments refer to 1.

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Old Oct 17, 2004, 1:45 PM   #4
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MarkE wrote:
Quote:
1. VX Fine - 640 x 480 pixels, 30 fps
2. VX Standard - 640 x 480 pixels, 16 fps
But I see a huge difference in video quality between these two modes....
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Old Oct 17, 2004, 3:28 PM   #5
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It is true that MPEG Movie VX is 320x240 interpolated to 640x480. Look at any Sony cam that has MPEG HQX(P7,P9,F717) and compare it to any Sony cam with MPEG VX with 16fps, you will see that they both use up the same amount of memory per second.
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Old Oct 23, 2004, 2:23 PM   #6
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I didn't take your comment seriously at first, but after looking at sample video clips from the sonys (W1 and T1) and comparing with clips from other 640x480s (Canon SD300, Fuji E550), I must say that the sony's VX fine mode definitely appears to lack resolution! The clips can be found near theend of the reviews, here are links. First two are the sonys, then the SD300, last two are from the fuji e550:

http://www.dcresource.com/reviews/so...ew/index.shtml

http://www.dcresource.com/reviews/sony/dsc_t1-review/

http://www.dcresource.com/reviews/ca...ew/index.shtml

http://www.steves-digicams.com/2004_...0_samples.html

http://www.dcresource.com/reviews/fu...ew/index.shtml

IMO the sony movie mode is definately lacking, you may have a point here.
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