[nosnoop]

watchthewaves:
Assuming that there is no autofocus or autofocus is slow, in general a consumer HD cam is probably a better idea for a non-professional without help to capture footage of a child, sports, etc. A DSLR (even at 720p) is likely to look better (because we like shallow DOF, since it's "different") but that doesn't mean much if everything is out of focus all the time.

Agree.
And for taking vacation video, kids, sports, the video would look smoother in 60i. People talk about the 24p film look, but it takes experience to make the 24p video look good, otherwise, in the hands of the inexperienced, all you get is stuttering video.

[watchthewaves]

Thanks. So if I'm trying to be artistic, the DSLR will allow me to play with shallow DOF and bring things in and out of focus. But if I want to do simple recording of the event, then I simply use a smaller aperture setting to provide for more DOF, right?

As for 24p shooting, my understanding is that most flat panel displays now will playback at a higher frame rate (eg the 2009 Panasonic plasmas accept 1080/24p but playback at 1080/60p). Does that mean that I shouldn't see any problems with motion?

[falconeye]

I updatd the video specs on this thread's front page

- Video up to 25 min or 4 GB (which implies that a video file is written -- but no word about format or compression rate). 4 GB in 25 min are 22 Mbit/s. 22 Mbit/s in MJPEG would be ~100kB per frame -- not ideal (the 21 fps K20D bursts are ~900 kB per frame).

- Still ambigous about 30 fps ("up to" wording ...)

- Stereo! (with ext. microphone)

- New rumor: Either 9 Mbit/s or 9 MByte/s MJPEG codec in AVI container


source:
http://img132.imageshack.us/img132/2462/k71.jpg
http://img198.imageshack.us/img198/9629/k72.jpg

[NunoBarbosa]

I updatd the video specs on this thread's front page

- Video up to 25 min or 4 GB (which implies that a video file is written -- but no word about format or compression rate). 4 GB in 25 min are 22 Mbit/s. 22 Mbit/s in MJPEG would be ~100kB per frame -- not ideal (the 21 fps K20D bursts are ~900 kB per frame).

- Still ambigous about 30 fps ("up to" wording ...)

- Stereo! (with ext. microphone)


source:
http://img132.imageshack.us/img132/2462/k71.jpg
http://img198.imageshack.us/img198/9629/k72.jpg

It would be nice to have 25p to european people.
I'm anxious to see the video sample later today...

[falconeye]

New from https://www.pentaxforums.com/forums/603606-post3676.html in THE THREAD:

Movie (All AVI/MJPEG at 30 fps):

format *quality* "duration until 4GB full" -> MBit/s data rate / "kByte/image frame"

1536 x 1024p *** 7:23 -> 74.0 / 316
1536 x 1024p ** 10:22 -> 52.7
1536 x 1024p * 14:40 -> 37.2

1280 x 720p *** 9:26 -> 57.9 / 247
1280 x 720p ** 13:19 -> 41.0
1280 x 720p * 18:37 -> 28.4

640 x 416p *** 31:55 -> 17.1 / 73
640 x 416p ** 41:44 -> 13.1
640 x 416p * 60:57 -> 9.0 / 38


74.0 MBit/s or 9.2 MByte/s is twice the data rate of a Canon 5Dmk2, so far industry's best. Quality would be comparable, because of MJPEG vs. H.264.

Earlier in this thread, I had computed ~250 kB would be a good quality (*** JPEG) for a video frame image. The K20D 21 fps burst image are about 900 kB each, but compression quality hasn't been their problem


Given that a 1024p 3:2 video stream would be free of motion compression artifacts, this is very good news.

Let's hope that the K-7 1536 x 1024 mode isn't really 768 x 1024 internally (as with K20D). Or at least, that the 720p mode is a true one.

[falconeye]

Data write rate: 8.1 MB/s (65 Mbit/s, 2x of 5Dmkii H.264)

It turns out that I was very close, only by deduction It feels good

[NunoBarbosa]

New from https://www.pentaxforums.com/forums/603606-post3676.html in THE THREAD:

Movie (All AVI/MJPEG at 30 fps):

format *quality* "duration until 4GB full" -> MBit/s data rate / "kByte/image frame"

1536 x 1024p *** 7:23 -> 74.0 / 316
1280 x 720p *** 9:26 -> 57.9 / 247

74.0 MBit/s or 9.2 MByte/s is twice the data rate of a Canon 5Dmk2, so far industry's best. Quality would be comparable, because of MJPEG vs. H.264.

That sound really promising...but i'll miss 1080p and 25p...
My lens are already crying to be attached to that k-7!

[jogiba]

I get about 14 minutes per 4GB (FAT32 Limit) in 1280x720 30fps (M-JPEG AVI) mode with my Canon TX1 or 56 minutes total using my 16GB Sandisk Extreme III 30mb/sec SDHC card. With the 32GB SDHC cards it would be 1 hour 52 minutes. The K-7 in *** 1536x1024 30fps mode would get about one hour from a 32GB SDHC card. I will order the K-7 ASAP.

[CherryO]

I have shot videos with the K-7!

There, now that that's out of the way, I can't comment on too many features, since the firmware was unrefined.... but I'll say this:

SR during video shooting is brilliant! I was shooting handheld 1:1 macro with my DFA 50 with no jitter. Except for slower arm movement, the video was incredibly smooth.

[Ted1212]

Do you need a lens with an aperture adjustment or can you control it in camera if a lens doesn't have one?

Will CA correction work with video? That's pretty substantial if it does.

[nosnoop]

I have shot videos with the K-7!

How much manual control do you have during movie shooting?
Aperture is in the menu item, how about shutter speed and ISO?

[karl79]

no video samples

[Torphoto]

ya like wheres the samples of the video quality!!!

[CherryO]

no video samples

Sorry... as of now, they're pretty big. When I have time I'll try to find a way to compress them and upload them. I really don't know much about video.

[falconeye]

In some of the many reports which emerged after embargo ended, I've read this:

(Contrast) AF in video is not continous/automatic. You have to push the AF button to change the focus.