[Saaby]

I see! Is there a way to control the exposure in video while maintaining an aperture (to maintain DOF) but not get the video all choppy and blurred?

Yeah, you need more light. Then you can speed the shutter up. It slightly change the way motion looks. Lower shutter speeds give you a little bit of blur in motion, and sometimes that is actually desirable. Standard shutter-speed in film, for example, is 1/48 shutter for 24 FPS frame-rate.

So I mean if you need more light you only have so many options, but if you need less light there are many options to get the right shutter speed/FPS/DOF combination.

[falconeye]

I don't understand why they shoot in 25p but record it in 50i. So if playback is at 50i?

I am not sure, but FWIW ...

I believe that the only common HDTV modes are
- 720p@50/60Hz
- 1080i@50/60Hz
- 1080p@50/60Hz
- 1080p@24Hz (more recently)

So, a 1080p@25/30Hz stream may simply not play if connected to a HDTV. At least, I can only select from the above list to connect my media center to HDTV.

[Torphoto]

I am not sure, but FWIW ...

I believe that the only common HDTV modes are
- 720p@50/60Hz
- 1080i@50/60Hz
- 1080p@50/60Hz
- 1080p@24Hz (more recently)

So, a 1080p@25/30Hz stream may simply not play if connected to a HDTV. At least, I can only select from the above list to connect my media center to HDTV.

there is a 1080p 30hz mode as there is a 720p30. 1080p 60 is actually rare since mostly it is 1080p30 that has been upscaled to 1080p60.

Most TV's will accept signals outside the standard once the hz and frequencies fall with in it, EG computer monitor modes like 1680x1050 etc. So as long as the K7's above 720p mode falls into either a standard hdtv mode or computer monitor mode it can be displayed on 99% of hdtv's out there. Since all computer monitor modes are progressive there is no issue with 30fps. Also if the display can not accept a true 1080p input most can display it as 1080i, it will downscale it internally. Now this is for most newer monitors and hdtvs, older ones can not do either.

[jogiba]

1080p 60 camcorders:
Digital Camcorder | Full HD Camera | VPC-FH1 | Xacti SANYO

[Torphoto]

Those sony 1080P60 are new cameras, I'm sure the video quality will not be spectacular either. I used a canon HV20 earlier this year, in 1080p24 mode I was not impressed as it did not look any better than upscaled 480p from my panny dvc30/dvx100. The canon A1/G1 in 1080i is VERY impressive and looked far better than what I have seen from any consumer 1080p cam, just convert it to 1080p24 and it looks very very good.

Now we know the K7 does 720p30 and supposedly 1536x1024 30fps, that last mode can probably be easily upscaled in 3rd party ( tho I hope Pentax provides something ) software to full 1080p. IF the video quality lives up to the hype we will have a good alternative to the 5d MKii for pro looking video on the cheap .

For anyone with the k7 once the NDA is over please post a sample of the 2 top video modes uncompressed, like on rapidshare or something so we can play with conversion methods.

[Logics]

I am not sure, but FWIW ...

I believe that the only common HDTV modes are
- 720p@50/60Hz
- 1080i@50/60Hz
- 1080p@50/60Hz
- 1080p@24Hz (more recently)

So, a 1080p@25/30Hz stream may simply not play if connected to a HDTV. At least, I can only select from the above list to connect my media center to HDTV.

I cannot speak for Europe but in the US, the only television/HDDVD/Bluray modes are 720p (progressive) which shows 60fps, 1080i (interlace) which shows 30fps and 1080p which shows 60fps. Now in cinema, I get to understand that there exists a 1080p 24fps mode to compliment cinema film frame rate but I will skip that for now.

In 720p, 1080i and 1080p, the camera films at 60 shots per second (60Hz refresh rate) but in progressive modes, (720p/1080p), each shot is a complete frame scanned one line at a time from top to bottom. In interlace mode, (1080i), each shot alternates even lines from top to bottom then odd lines from top to bottom so two shots are required to produce a full resolution image so each full resolution image occurs once every 1/30th of a second or 30fps. Nevertheless, the refresh rate is 60Hz.

So apparently, if the camera is shooting 1080 resolution at 30/24fps but recording at 1080i 30/24Hz then the camera is taking full frames every shot but throwing away half the data to form an interlaced frame in which case you can only be getting 15/12fps 1080i @30/24Hz. This is not true HD.

The only other thing I can think is that the camera is shooting at 30/24Hz, dividing each frame into two interlaced frames thus doubling the amount of half images for 60/48Hz, and combining them, interlaced, at 60/48Hz to produce a 1080i 30/24fps movie. The problem with this is that in true interlace mode, each half frame is to be a picture advanced in time by 1/60th (or 1/48th) of a second.

In this case, the first and second half frames are the same point in time and the third and fourth half frames are 1/30th or 1/24th of a second ahead in time. This will not make smooth video but more like stop-motion filming at thirty images per each second of motion but only moving the models between every second image instead of between each image.

Tim Burton is rolling in his grave!

[Torphoto]

I cannot speak for Europe but in the US, the only television/HDDVD/Bluray modes are 720p (progressive) which shows 60fps, 1080i (interlace) which shows 30fps and 1080p which shows 60fps. Now in cinema, I get to understand that there exists a 1080p 24fps mode to compliment cinema film frame rate but I will skip that for now.

In 720p, 1080i and 1080p, the camera films at 60 shots per second (60Hz refresh rate) but in progressive modes, (720p/1080p), each shot is a complete frame scanned one line at a time from top to bottom. In interlace mode, (1080i), each shot alternates even lines from top to bottom then odd lines from top to bottom so two shots are required to produce a full resolution image so each full resolution image occurs once every 1/30th of a second or 30fps. Nevertheless, the refresh rate is 60Hz.

So apparently, if the camera is shooting 1080 resolution at 30/24fps but recording at 1080i 30/24Hz then the camera is taking full frames every shot but throwing away half the data to form an interlaced frame in which case you can only be getting 15/12fps 1080i @30/24Hz. This is not true HD.

The only other thing I can think is that the camera is shooting at 30/24Hz, dividing each frame into two interlaced frames thus doubling the amount of half images for 60/48Hz, and combining them, interlaced, at 60/48Hz to produce a 1080i 30/24fps movie. The problem with this is that in true interlace mode, each half frame is to be a picture advanced in time by 1/60th (or 1/48th) of a second.

In this case, the first and second half frames are the same point in time and the third and fourth half frames are 1/30th or 1/24th of a second ahead in time. This will not make smooth video but more like stop-motion filming at thirty images per each second of motion but only moving the models between every second image instead of between each image.

Tim Burton is rolling in his grave!

Some clarification is needed.

the TV modes are as follows

480i ( 50 or 60 fps interlaced )
480p ( 24, 30, 50 or 60 fps )
720p ( which can be 30 50 or 60 fps )
1080i ( 60 fps interlaced, some tv's deinterlace to 30 fps progressive internally ) )
1080P ( 24, 30 or 60 fps ).

There are some computer modes that are supported
640x480 vga
800x600 svga
1024x768 svga
1280x800 or 1024 xvga
1440x800 or 900 or 1024
1680x1050
1920x1200

and a few variations between as well, computer modes can be 30 or 60 fps and are all progressive.

Now these are standards and there are variations to them, eg the first batch of HD cams did not do 1920x1080 but many did 1440x1080 in progressive or interlaced, most could easily be upscaled to true 1080p and looked very good.

using 3rd party software like sony vegas or adobe primere can convert between modes and resolutions as well. It's not all hard and fast or the holly grail and variations are allowed, plus most can be compensated for in some way form or fashion

[nosnoop]

So apparently, if the camera is shooting 1080 resolution at 30/24fps but recording at 1080i 30/24Hz then the camera is taking full frames every shot but throwing away half the data to form an interlaced frame in which case you can only be getting 15/12fps 1080i @30/24Hz. This is not true HD.

It is not as complicated as this. You can certainly make a native 24p and 30p recording, and no you don't need to throw any data out. The way that current consumer Canon AVCHD camcorder does it is to use progressive segmented frame or 2-3 pulldown to record the 30p and 24p into an interlaced stream. And the 30p and 24p video can be restored with editing software.

Anyways, I think most HDTV can process native 30p signal as well; and should have no problem playing from K-7 HDMI.

[nosnoop]

The first good news out of the gate (from the Hands On photos):

Aperture control is possible during movie mode.
SR is active during movie mode.
Exposure compensation is possible during movie mode.

So I presume that shutter speed control is probably possible as well.
This is already better than many other DSLRs, and I hope the image quality would be excellent as well.

[Yohan Pamudji]

I cannot speak for Europe but in the US, the only television/HDDVD/Bluray modes are 720p (progressive) which shows 60fps, 1080i (interlace) which shows 30fps and 1080p which shows 60fps. Now in cinema, I get to understand that there exists a 1080p 24fps mode to compliment cinema film frame rate but I will skip that for now.

No, plenty of Blurays are at 1080p/24, and you can watch it in native 24 fps as long as your TV can handle it. Not all TVs do.

[falconeye]

I removed the EVF rumor from the specification on the front page of this thread.

[vizjerei]

I really want to see how well the video will be for K-7 + the limited lens

[Yohan Pamudji]

I really want to see how well the video will be for K-7 + the limited lens

Probably great if you don't need AF

[Steelski]

I really want to see how well the video will be for K-7 + the limited lens

We all do. I think it will be either great or really cr@p.
I hope the first as everyone will be complaining about "why did they include it if it increases cost"

[and]

So many lenses that will be interesting to try out with video, what about a voigtlander outside in a green forrest to get that voigtlander green bokeh in the vids