Pentax k-5, am i doing something wrong or have they made a false statment?


Glover

Link Posted 05/02/2011 - 17:11
According to pentax the k-5 is capable of full hd movie recording at 1080p. is it just me or is this wrong? everything i can find in the settings and the manual says its 1080i which is not full hd.

Have i got a missed setting or is it only capable of 1080i? if i've missed something what have i missed?

Cheers.
Pentax K-5
DA 18-55mm AL WR DAL 50-200mm Tamron 70-300mm, Auto Chinon 28mm 2.8. sigma 30mm 1.4 DC
Metz 48 af-1
Flickr

geclinke

Link Posted 05/02/2011 - 17:19
It only says 1080i in the manual. When did Pentax say it was 1080p?

Either way, that's talking about the HDMI output from the camera, and not the videos that you're actually taking.

The videos themselves are 1920 x 1080 at 25 fps.
k5, 50mm FA, 18-55mm Kit, 50-200mm DA, 15mm Fisheye Sigma, 10-17mm DA Fisheye, 18-55mm DA WR, DA* 60-250, DA* 16-50

Don

Link Posted 05/02/2011 - 17:20
I was under the impression it shot 1080p
but the difference is academic, Flat panels don't interlace when displaying, only crt tv's do that.

I have yet to meet a person that can spot the difference between 720 p and 1080 anything, when viewing.
Fired many shots. Didn't kill anything.

Glover

Link Posted 05/02/2011 - 17:30
the pentax site says its full hd recording at 1080p

The difference between 720p and 1080p are actually quite large, more noticeable if you view console games but still noticeable on anything really. Fact is they say its full hd at 1080p when it actually seems its not. Thats false advertising if that is the case.

If you watch sky hd then thats not actually full hd either, only actually 1080i or 720p, if you watch a full hd blueray or hd dvd at 1080p its very noticeable.
Pentax K-5
DA 18-55mm AL WR DAL 50-200mm Tamron 70-300mm, Auto Chinon 28mm 2.8. sigma 30mm 1.4 DC
Metz 48 af-1
Flickr

Glover

Link Posted 05/02/2011 - 17:31
its here in black and white
link
Pentax K-5
DA 18-55mm AL WR DAL 50-200mm Tamron 70-300mm, Auto Chinon 28mm 2.8. sigma 30mm 1.4 DC
Metz 48 af-1
Flickr

bretti_kivi

Link Posted 05/02/2011 - 17:46
I will be using this in a few days, will let you know how it goes.

Pain is not being able to set exposure as wanted when filming... but I'll get around that

Bret
my pics: link
my kit: K3, K5, K-01, DA 18-55, D-FA50 macro, Siggy 30/1.4, 100-300/f4, 70-200/2.8, Samsung 12-24/f4, Tamron 17-50, and lots of other bits.

Mike-P

Link Posted 05/02/2011 - 17:51
Are you playing back through the camera?

I believe its 1080i playback .. but 1080p recording ?
. My Flickr

pentaxanne

Link Posted 05/02/2011 - 17:51
it will be noticible on bigger screens over 32" 1080i is no good for fast moving action.

royd63uk

Link Posted 05/02/2011 - 18:01
i actually switched my sky from 1080i to 720p because it is better without the interlacing
regards
Roy

Pentax K3 gripped,and some lenses
https://www.flickr.com/photos/pentaxroy/

my pbase gallery

geclinke

Link Posted 05/02/2011 - 18:04
Glover wrote:
its here in black and white
link

It's all in the language;

"...HD video with stunning detail at full 1080p resolution and 25 FPS..."

It is 1080 resolution, which doesn't matter whether it's i or p, it's still 1920 x 1080. I don't think it's misleading advertising, it's just very badly worded - as is the whole meaning of the various "standards", and phrases, around HD TV.
k5, 50mm FA, 18-55mm Kit, 50-200mm DA, 15mm Fisheye Sigma, 10-17mm DA Fisheye, 18-55mm DA WR, DA* 60-250, DA* 16-50

pentaxanne

Link Posted 05/02/2011 - 18:07
geclinke wrote:
Glover wrote:
its here in black and white
link

It's all in the language;

"...HD video with stunning detail at full 1080p resolution and 25 FPS..."

It is 1080 resolution, which doesn't matter whether it's i or p, it's still 1920 x 1080. I don't think it's misleading advertising, it's just very badly worded - as is the whole meaning of the various "standards", and phrases, around HD TV.

full hd means it does 1080i full hd 1080p means it does 1080p and there is a big difference, and it does matter if its i or p,

1080i: 1,920x1,080 pixel resolution. High-definition picture that is displayed interlaced. Each odd line of the picture is displayed, followed by each even line, and the resulting image is not as smooth as a progressive feed. 1080i is therefore a more detailed picture suited to documentaries and wildlife footage, but less suitable for action-oriented material such as sports and movies.

1080p: 1,920x1,080 pixel resolution. High-definition picture that is displayed progressively. Each line is displayed on the screen simultaneously, therefore it is smoother than an interlaced picture. This is the ultimate high-definition standard -- the most detailed picture, displayed progressively.

There are two main formats for HDTV, namely 720p (i.e. a 720 line picture progressively scanned 50 times a second) and 1080i (1080 lines interlaced at 50 cycles per second). The picture resolution of a high definition digital TV is about 4 times greater than a typical 576 line TV picture.
Last Edited by pentaxanne on 05/02/2011 - 18:13

geclinke

Link Posted 05/02/2011 - 18:12
In which case the k5 is neither 1080p or i, it's 1920 x 1080 pics 25 times a second - which isn't covered by either standrd.

Also, did you know 576p was actually classified as "HD" in North America for a while - that'd be really dissapointing...
k5, 50mm FA, 18-55mm Kit, 50-200mm DA, 15mm Fisheye Sigma, 10-17mm DA Fisheye, 18-55mm DA WR, DA* 60-250, DA* 16-50
Last Edited by geclinke on 05/02/2011 - 18:14

pentaxanne

Link Posted 05/02/2011 - 18:14
The movie industry has embraced 1080p24 as a digital mastering format in both native 24p form and in 24PsF form. 1080p24 has become an established production standard for digital cinematography and there is plenty of equipment capable of capturing and processing 1080p24 signals. This may be the first universal video standard which transcends continental boundaries, an area previously reserved for 24-frame film.[2]

For live broadcast applications, a high-definition progressive scan format operating at 1080p at 50 or 60 frames per second is currently being evaluated as a future standard for moving picture acquisition.[3][4] EBU has been endorsing 1080p50 as a future-proof production format because it improves resolution and requires no deinterlacing, allows broadcasting of standard 1080i25 and 720p50 signal alongside 1080p50 even in the current infrastructure, and is compatible with DCI distribution formats.[5] Recent studies show that for digital broadcasts compressed with H.264/AVC, transmission bandwidth savings of interlaced video over fully progressive video are minimal even when using twice the frame rate, i.e. 1080p50 signal (50 progressive frames per second) actually produces the same bit rate as 1080i50 signal (25 interlaced frames or 50 sub-fields per second). [5][6]

In Europe, 1080p25 signals have been supported by the DVB suite of broadcasting standards. The 1080p50 standard has been foreseen as a future-proof production format, and eventually a future broadcasting format.[3] 1080p50 broadcasting should require the same bandwidth as 1080i50 signal and only 15-20% more than that of 720p50 signal due to increased compression efficiency,[5] though 1080p50 production requires more bandwidth and/or more efficient codecs such as JPEG 2000, high-bitrate MPEG-2, or H.264/AVC and HEVC.[8]
Last Edited by pentaxanne on 05/02/2011 - 18:16

bretti_kivi

Link Posted 05/02/2011 - 18:24
right. And a 7D supports 24, 25 or 30fps, depending on whether it's NTSC or PAL. The K5 (and there's a lot of evidence to support this, including samples and lots of review site) is said to be 1080p. I will have this tested just as soon as mine turns up....

576p is NOT HD, no matter what the americans say. 720p or 1080p is the only way to go.

What I don't understand is why the 7D doesn't offer 720p @ 25fps, where the K5 does.

Bret
my pics: link
my kit: K3, K5, K-01, DA 18-55, D-FA50 macro, Siggy 30/1.4, 100-300/f4, 70-200/2.8, Samsung 12-24/f4, Tamron 17-50, and lots of other bits.

Mike-P

Link Posted 05/02/2011 - 18:25
Is Stefan back in disguise?
. My Flickr
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