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View Full Version : Capture 1920x1080 instead of 1440x1080 from a HDV camera using Blackmagic Intensity ?


St Devious
28th March 2010, 00:29
Is this possible like Blackmagic says ?

http://www.blackmagic-design.com/images/products/intensity/hero.jpg

Here's a quote from their website

Full Resolution

http://www.blackmagic-design.com/images/intensity/intensity-full-res.jpg
Intensity uses full resolution HDTV, which is a massive 1920 x 1080 pixels for every video frame. HDV only uses 1440 pixels wide due to the limitations of the small cassette tapes used and the FireWire speeds build into the cameras. However the newer cameras being released, such as the Sony HDR-HC3 have built-in HDMI video output which allow access to the raw uncompressed video from the CCD directly. That provides incredible quality. If you're capturing off HDV tape, you can still enjoy editing video in full resolution, so your graphics and effects look sharp because only uncompressed video eliminates the horizontal scaling that’s required when rendering HDV footage with graphics and effects.

I have the above said camera: Sony HDR-HC3

So will I be able to capture Full-HD progressive video off the tape ?

Anybody used this ?

um3k
28th March 2010, 03:28
Not off the tape, only during live capture. It'd be a waste of time and space to capture a tape over HDMI.

dannotto
28th March 2010, 10:31
I think Blackmagic can do 1080i, not 1080p. Anyway Sony HC3 shot only interlaced. For progressive you need other card and camcorder.

Ghitulescu
29th March 2010, 10:14
such as the Sony HDR-HC3 have built-in HDMI video output which allow access to the raw uncompressed video from the CCD directly. That provides incredible quality. If you're capturing off HDV tape, you can still enjoy editing video in full resolution, so your graphics and effects look sharp because only uncompressed video eliminates the horizontal scaling that’s required when rendering HDV footage with graphics and effects.

That is a typical case of false advertising. They should be sued for this. It's also contradictory, see below*.

You can have full resolution only for LIVE (not TAPE) and only if it bypasses the video processor. If you store on a tape then play it back and capture via HDMI, you may have either 1440 or 1920, depending on your camcorder/player.

*In the first case you can't enjoy editing in fullHD, in the second you have the fullhd but it's upscaled from 1440 by the camcorder (it has also been subjected to compression and decompression).

Bottom line: forget HDMI-in cards, none of them can do 1920x1080p (AFAIK). You can't use them for HDCP-enabled signals, you need a really really speedier system, as HDMI is uncompressed. You need also to invest in a real good encoder. And it's real-time, but HDV is also real-time. For AVCHD, it's another story, it's no worth at all.

dannotto
29th March 2010, 13:45
The CMOS sensor is 1920x1080i, so live Full HD over HDMI may be true. I own a similar camcorder but I can`t test that. The only way to find is to ask Sony and only if they say the true (unlikely). Anyway, I doubt about getting the best from FullHD standard with a consumer camcorder even if his capable to send FullHD signal from sensor.
Capturing from tape over HDMI is a stupid thing.
If you have enough money you will find a progressive 1920x1080 capture card.