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03-06-2012, 12:30 AM   #1
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Pentax K5 HDMI out compressed or uncompressed

Do anybody know, Pentax K 5 HDMI output compressed or uncompressed ? Is there possible record video directly to device like that Sub-$1,000 HDMI Field Recorder Atomos Ninja Now Available - NoFilmSchool

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03-06-2012, 02:15 PM   #2
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I believe you mean, is the VIDEO compressed or uncompressed. There is no "compression" in the HDMI interface itself. With that said, the compression will depend on the codec used. Practically all cameras that shoot video use some form of compression, otherwise the bitrate is insane especially if shooting HD 1080p. According to the specs the video is Motion JPEG, so yes there is compression.
03-06-2012, 02:44 PM   #3
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The output from K-5 during video-recording is not at full resolution so you can't use it for external recording.
03-06-2012, 05:40 PM   #4
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QuoteOriginally posted by RonHendriks1966 Quote
The output from K-5 during video-recording is not at full resolution so you can't use it for external recording.
Just to clarify, HDMI out at 1080i with the K-5 is indeed possible, but only during playback in camera from a recorded movie file.

But as Ron notes, and as the K-5 Manual confirms, if you want to see live output via HDMI whilst the exposure mode is set to Movie, you will only get 480p coming out:

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03-06-2012, 11:43 PM   #5
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I looked into K-01 manual, but couldn't find anything stating about this. So who knows what K-01will give you during video recording?
03-07-2012, 12:18 AM   #6
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I dont see any reason why it wouldn't I doubt pentax would intentionally cripped it.
03-07-2012, 01:28 AM   #7
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QuoteOriginally posted by Verglace Quote
I dont see any reason why it wouldn't I doubt pentax would intentionally cripped it.
The processor needs to be able to handle it. So maybe a technical issue.
03-07-2012, 04:25 AM   #8
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Thank you RonHendriks for clear answer and rawr pointing out exact place in Pentax K5 manual. Cbope, I do not know which reasons the Pentax K5 HDMI video is set only 480P when exposure mode is set to Movie. I actually thought that there maybe are cripled HDMI interface. So I am mistaken here. But I know that there are cameras where you can get full resolution out of HDMI when filming and record it directly to harddrive and if you have proper device-harddrive you can use better codec in your movie than possible in camera. This is very useful if there is intention to use dslr more professionally as video camera too.

I googled a lot and find that there is only Panasonic cameras GH2 for sure and recent Nikon fullframes and Nikon 7000 can do it but I am not sure about last one.

Pentax K5 is really good photo camera but I hope that successor give as better movie options.

Excuse my bad English!
A

03-07-2012, 02:28 PM   #9
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QuoteOriginally posted by 645user Quote
But I know that there are cameras where you can get full resolution out of HDMI when filming and record it directly to harddrive and if you have proper device-harddrive you can use better codec in your movie than possible in camera. This is very useful if there is intention to use dslr more professionally as video camera too.
Believe it or not, the Canon 5DmkIII that was just released doesn't even do this, but the new Nikon D800 does. The Canon HDSLR users like Vincent LaForet are pretty pissed Canon only put that feature in the much more expensive C300

The D7000 does not....not enough processing power...not sure what it outputs, but it's definitely not 1080p/i out the HDMI port...
03-07-2012, 03:18 PM   #10
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QuoteOriginally posted by kenyee Quote
The D7000 does not....not enough processing power...not sure what it outputs, but it's definitely not 1080p/i out the HDMI port...
Indeed. When monitoring the liveview via HDMI it outputs 720p, and the information overlays can't be switched off either.

However it is possible the K-01 may let you get a liveview feed out to an external monitor via HDMI at HD resolution. At least the K-01 manual doesn't say it isn't possible, unlike the K-5 manual.
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