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09-10-2010, 09:15 PM   #1
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Rumoured video specs for the K-5

• AVi (Motion JPEG)
• 1920 x 1080 25p, 30p
• 1280x720 25p, 30p
• 640 x 480, 25p, 30p
• Av, Sv, Tv and M modes for video.
• External stereo mic jack.

This list is bouncing around on a couple of other forums - *IF* true this would be a nice step forward ...

09-10-2010, 09:18 PM   #2
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Dammit with specs like these, there's no sense getting a K-r as a backup unit.
Might as well just get another K-5
09-10-2010, 10:14 PM   #3
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Step forward for Pentax but sort of playing catch up, especially since the D3100 will have close to the same abilities (no 1080/60p I believe) and AF-C in video, and then the T2i has 720 60p, and both are much cheaper than the new flagship Pentax will be

These video capabilities really should have been on the Kr, it would have been the perfect camera if they would have done that

Last edited by future_retro; 09-10-2010 at 10:19 PM.
09-11-2010, 12:03 AM   #4
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These specs look pretty good - covers most of the essentials. Don't forget even the K-x offers in-camera SR - something no other MFG has had (I guess Sony's finally about to give us video with the SLT-A55, and is including SteadyShot).

I've found the FA31 works pretty well with video on the K-x. Not many primes (any?) for any DSLR have built-in SR. The SR appears to have been a Pentax advantage, yet I haven't heard it talked about.

09-11-2010, 08:03 AM   #5
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I'll have to try out the FA31. So far the SMC-M 50mm 1.4 and a 35-70 f2.8 has served me well in video. I've been very thankful for the built in SR. I figure I wouldn't mind spending more on the K-5 since I can still use lenses 30 years old and get image stabilization.
09-11-2010, 09:32 AM   #6
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QuoteOriginally posted by DSims Quote
These specs look pretty good - covers most of the essentials. Don't forget even the K-x offers in-camera SR - something no other MFG has had (I guess Sony's finally about to give us video with the SLT-A55, and is including SteadyShot).

I've found the FA31 works pretty well with video on the K-x. Not many primes (any?) for any DSLR have built-in SR. The SR appears to have been a Pentax advantage, yet I haven't heard it talked about.
the Alphas have have Steadyshot Inside for a while now, but did they not have video until the SLT's?
09-12-2010, 06:25 AM   #7
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I will wait for a FF version of the K-5 since I have a Panasonic HDC-TM700 3MOS camcorder with 35-630mm (35mm eqiv) F1.5-F2.8 Leica lens with active OIS that is much better than SR on my K-7.

Since I purchased my 64GB iPod Touch I enjoy viewing my Pentax K-7 1536x1024 HD videos since it has the same 4:3 aspect ratio as the 960x640 Retina display on it.
[YT]http://www.youtube.com/watch?v=Y4_Xy0ESChY[/YT]

09-13-2010, 02:01 AM   #8
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These specs look nice, but I really miss the 24P mode. Also, what do you think: Pentax will release a firmware update for the K-7 including the new movie recording modes, or will they go with "just buy the new K-5" business plan?
09-13-2010, 05:26 AM   #9
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I wish Pentax would come out with firmware giving the K-7 1080p24 and manual control of video shutter, ISO etc.
09-13-2010, 10:57 AM   #10
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QuoteOriginally posted by jogiba Quote
I wish Pentax would come out with firmware giving the K-7 1080p24 and manual control of video shutter, ISO etc.
Oh goodness did I wish too, if there was even a slight chance that would have happened I wouldn't have sold my K7.
09-13-2010, 01:16 PM   #11
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QuoteOriginally posted by future_retro Quote
Oh goodness did I wish too, if there was even a slight chance that would have happened I wouldn't have sold my K7.
While I think that Pentax won't offer any further updates for the K-7 regarding movie mode, there is still a little hope. After the release of the 645D, some of the firmware features of it (like Cross-Process filter) was integrated into the K-7 firmware (1.10), so technically, if there is no hardware limitations on the K-7 (which I find more than likely), there is a slight possibility of the K-7's firmware inherit this. Just don't give our hopes up.
09-13-2010, 01:19 PM   #12
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QuoteOriginally posted by dande Quote
While I think that Pentax won't offer any further updates for the K-7 regarding movie mode, there is still a little hope. After the release of the 645D, some of the firmware features of it (like Cross-Process filter) was integrated into the K-7 firmware (1.10), so technically, if there is no hardware limitations on the K-7 (which I find more than likely), there is a slight possibility of the K-7's firmware inherit this. Just don't give our hopes up.
If the K7 get's that in a firmware update then I will just go all deja vu and sell my Kx and buy a K7....

....which is exactly what I did 3 months ago
09-16-2010, 07:26 AM   #13
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If you want 24p and are using a 30p camera, what's the problem? Just transcode it to 24p. I mixed video from two cameras one camera shooting at 24p and the other 30p once. I transcoded the 30p into an editing format at 24p and dropped it in my editor on a 24p timeline. The quality was good from the conversion. No noticeable artifacts.
09-16-2010, 08:03 AM   #14
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QuoteOriginally posted by tuco Quote
If you want 24p and are using a 30p camera, what's the problem? Just transcode it to 24p. I mixed video from two cameras one camera shooting at 24p and the other 30p once. I transcoded the 30p into an editing format at 24p and dropped it in my editor on a 24p timeline. The quality was good from the conversion. No noticeable artifacts.
Slight threadjack here, but...

How exactly does trandscoding to another frame rate work? With 30 fps and 24 fps, really only 6 of the frames in a second should be the same and the rest would all be slightly different moments. So I would think that it obviouslt can reimagine what those other moments were like, so does it just drop 1 of of every 5 frames to make it 24? And is it much harder to transcode between 25fps and 30fps, or is it the same?
09-16-2010, 08:40 AM   #15
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QuoteOriginally posted by FullertonImages Quote
Slight threadjack here, but...

How exactly does trandscoding to another frame rate work? With 30 fps and 24 fps, really only 6 of the frames in a second should be the same and the rest would all be slightly different moments. So I would think that it obviouslt can reimagine what those other moments were like, so does it just drop 1 of of every 5 frames to make it 24? And is it much harder to transcode between 25fps and 30fps, or is it the same?
There's 3 ways to convert 30p to 24p. One method is to conform the 30p footage to 24p. This basically tells the player to play the entire 30p clip at 24 fps. All the frames are kept, but played at 24fps instead of 30fps. Because of the slower framerate, the duration of your clip will increase by 25%.

You described frame dropping, which is a second method of converting to 24p. In this method, various frames are removed from the clip. This method is not very CPU intensive. Your clip duration stays the same, but the motion may end up somewhat jerky depending on which frames get removed. The best case for going from 30 to 24p is to probably drop every 5th frame.

A third method of converting 30p to 24p is to do frame blending. In this method, various frames are blended into a single frame. Like in frame dropping, the duration of your clips will remain the same. Unlike frame dropping, frame blending will give much better transitions than frame dropping when the scene has lots of motion. However, this method is much more CPU intensive.

In regards to your other question, it's generally easier to go from a higher framerate to a lower framerate, as you're discarding data in this process. Going from a lower framerate to a higher framerate, such as 24p to 30p, is much harder, as the software needs to now interpolate your existing data to create frames that weren't there originally. This interpolation is much more CPU intensive than frame blending, as it requires complex algorithms to calculate the motion between frames to generate new frames. The smaller the gap between the existing and desired framerate, the better the interpolation will look; a 30p clip interpolated from 24p source will look better than a 60p version interpolated from the same source.

- Jason
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