Win a Pentax Limited Lens: Raffle Now Live!

RolloR · 09-20-2010, 03:05 AM

ok, how about:

853 x 480 resolution? instead of useless 640x424

853x480 60/50/30/25/24 with minimal jell-o effect would be awesome for me.

DVD resolution still looks pretty good on my 32" LCD TV. And DVD file sizes are still way smaller to Upload/Download and share with people.

Yeah you can reduce the resolution of 720/1080 in post. But why not a native 853x480? It will be way easier for the camera to handle.

fzwo · 09-20-2010, 03:50 AM

Because the sensor can't do pixel binning on-chip. So with a lower resolution you get larger gaps in-between pixels, downscaling after recording at thigher resolution should result in superior image quality and less moiré.

In the following example, "." is a blind pixel, and "o" a pixel that gets recorded.

1080p on the 16 MP sensor looks like this:

o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o

480p would look like this:

o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o

jogiba · 09-20-2010, 07:09 AM

Looks like no full manual control in video mode.

andi · 09-20-2010, 07:13 AM

25fps only? Looks like they don't care about the US too much...
25fps is terrible for editing. Maybe they can do 24fps in fw update...

Asahiflex · 09-20-2010, 07:14 AM

How would you know? It could say Auto, Fixed and Manual right after "Movie Aperture Control".

fzwo · 09-20-2010, 07:24 AM

It says "Auto" and "Fixed" (which means: Av), like in the K-7. It wouldn't make sense to call the option aperture control if it meant auto/manual exposure

filmamigo · 09-20-2010, 08:38 AM

fzwo, do you know for sure? Have you seen it?

GAH, the least they could do is give us a locked 1/48 or 1/60 ....

fzwo · 09-20-2010, 08:53 AM

I am sure, but I haven't seen a K-5 in person yet, but everything else would be illogical.

I am pretty sure that shutter angle remains fixed at 180° (that is, 1/50 and 1/60 respectively) as long as selected aperture and auto-gain (I. e. auto ISO sensitivity) permit. This was the case with K-7 and K-x, and it's both logical and easy to implement.

Still, manual control would IMHO have been not only nice, but a necessity for not alienating the video crowd.

ogl · 09-20-2010, 08:59 AM

Originally posted by fzwo

It says "Auto" and "Fixed" (which means: Av), like in the K-7. It wouldn't make sense to call the option aperture control if it meant auto/manual exposure

No AF in video too?

FullertonImages · 09-20-2010, 09:13 AM

Originally posted by Asahiflex

How would you know? It could say Auto, Fixed and Manual right after "Movie Aperture Control".

Because we already have manual aperture control. That's what Fixed is. It's shutter speed and gain that we have no control over, and there's no reason that those would be in the aperture control menu.

falconeye · 09-20-2010, 04:01 PM

Originally posted by andi

25fps only? Looks like they don't care about the US too much...
25fps is terrible for editing. Maybe they can do 24fps in fw update...

I think it is 25fps for 1080p and 25fps or 30fps for 720p. I guess 1080p @ 30fps is too fast for the sensor to handle. You're correct about your 24p comment of course.

jogiba · 09-20-2010, 05:07 PM

Originally posted by ogl

No AF in video too?

If you want HD video and AF with the same sensor get the new Sony SLT-A55V for $749.99.
Sony SLT-A55 Review: 1. Introduction: Digital Photography Review

fzwo · 09-21-2010, 02:20 AM

I have hooked up my K-7 to my girlfriends' TV this morning, and it seems as if what I posted about switching aspect ratio in movie mode was correct. The TV doesn't give lots of details on input resolution though. I thought I could test on my monitor (which gives very detailed statistics), but I don't have a HDMI->DVI converter handy.

I think it's becoming clear that Pentax doesn't care about video except as a bullet point on the spec sheet.

Jasvox · 09-21-2010, 02:40 AM

Originally posted by jogiba

If you want HD video and AF with the same sensor get the new Sony SLT-A55V for $749.99.
Sony SLT-A55 Review: 1. Introduction: Digital Photography Review

or the D7000...seems to be more advanced than the K-5 in my opinion. (and costs less)

Jason

TZH · 09-22-2010, 07:10 AM

Originally posted by Jasvox

or the D7000...seems to be more advanced than the K-5 in my opinion. (and costs less)

Jason

So we have to wait for K-5 replacement again

09-20-2010, 08:53 AM	#68
fzwo Forum Member Join Date: Jul 2010 Posts: 81	I am sure, but I haven't seen a K-5 in person yet, but everything else would be illogical. I am pretty sure that shutter angle remains fixed at 180° (that is, 1/50 and 1/60 respectively) as long as selected aperture and auto-gain (I. e. auto ISO sensitivity) permit. This was the case with K-7 and K-x, and it's both logical and easy to implement. Still, manual control would IMHO have been not only nice, but a necessity for not alienating the video crowd. Last edited by fzwo; 09-20-2010 at 09:30 AM. Reason: Of course I am sure!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
VOGUE CHANEL Feature & Making of Video	benjikan	Photographic Technique	4	09-07-2010 10:48 AM
Manual controls in Pentax P&S	toylas	Pentax Compact Cameras	4	04-15-2010 02:45 AM
Useful K-7 hints/tips/controls not in the manual?	zoltan1983snapper	Pentax DSLR Discussion	0	07-10-2009 06:06 AM
Animation/HDTV video feature on K20D!	HermanLee	Pentax News and Rumors	11	01-30-2008 03:43 AM
Manual Lens, what a neat feature.	Ed in GA	Pentax SLR Lens Discussion	4	07-05-2007 05:09 PM

09-20-2010, 03:05 AM	#61
RolloR Senior Member Join Date: Feb 2010 Photos: Albums Posts: 264	ok, how about: 853 x 480 resolution? instead of useless 640x424 853x480 60/50/30/25/24 with minimal jell-o effect would be awesome for me. DVD resolution still looks pretty good on my 32" LCD TV. And DVD file sizes are still way smaller to Upload/Download and share with people. Yeah you can reduce the resolution of 720/1080 in post. But why not a native 853x480? It will be way easier for the camera to handle.

09-20-2010, 03:50 AM	#62
fzwo Forum Member Join Date: Jul 2010 Posts: 81	Because the sensor can't do pixel binning on-chip. So with a lower resolution you get larger gaps in-between pixels, downscaling after recording at thigher resolution should result in superior image quality and less moiré. In the following example, "." is a blind pixel, and "o" a pixel that gets recorded. 1080p on the 16 MP sensor looks like this: o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o . . o . . . o 480p would look like this: o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o . . . . . . o

09-20-2010, 07:09 AM	#63
jogiba Banned Join Date: Sep 2006 Location: Millstone,NJ Posts: 6,491	Looks like no full manual control in video mode.

09-20-2010, 07:13 AM	#64
andi Senior Member Join Date: Sep 2009 Posts: 200	25fps only? Looks like they don't care about the US too much... 25fps is terrible for editing. Maybe they can do 24fps in fw update...

09-20-2010, 07:14 AM	#65
Asahiflex Pentaxian Join Date: Jan 2008 Location: Netherlands Photos: Gallery Posts: 2,795	How would you know? It could say Auto, Fixed and Manual right after "Movie Aperture Control".

09-20-2010, 07:24 AM	#66
fzwo Forum Member Join Date: Jul 2010 Posts: 81	It says "Auto" and "Fixed" (which means: Av), like in the K-7. It wouldn't make sense to call the option aperture control if it meant auto/manual exposure

09-20-2010, 08:38 AM	#67
filmamigo Pentaxian Join Date: Aug 2007 Location: Toronto Photos: Gallery \| Albums Posts: 797 Original Poster	fzwo, do you know for sure? Have you seen it? GAH, the least they could do is give us a locked 1/48 or 1/60 ....

09-20-2010, 08:59 AM	#69
ogl Banned Join Date: Dec 2007 Location: Sankt Peterburg Photos: Gallery \| Albums Posts: 8,382	Originally posted by fzwo It says "Auto" and "Fixed" (which means: Av), like in the K-7. It wouldn't make sense to call the option aperture control if it meant auto/manual exposure No AF in video too?

09-20-2010, 09:13 AM	#70
FullertonImages Veteran Member Join Date: Apr 2009 Location: Boulder, CO Posts: 883	Originally posted by Asahiflex How would you know? It could say Auto, Fixed and Manual right after "Movie Aperture Control". Because we already have manual aperture control. That's what Fixed is. It's shutter speed and gain that we have no control over, and there's no reason that those would be in the aperture control menu.

09-20-2010, 04:01 PM	#71
falconeye Veteran Member Join Date: Jan 2008 Location: Munich, Alps, Germany Photos: Gallery Posts: 6,871	Originally posted by andi 25fps only? Looks like they don't care about the US too much... 25fps is terrible for editing. Maybe they can do 24fps in fw update... I think it is 25fps for 1080p and 25fps or 30fps for 720p. I guess 1080p @ 30fps is too fast for the sensor to handle. You're correct about your 24p comment of course.

09-20-2010, 05:07 PM	#72
jogiba Banned Join Date: Sep 2006 Location: Millstone,NJ Posts: 6,491	Originally posted by ogl No AF in video too? If you want HD video and AF with the same sensor get the new Sony SLT-A55V for $749.99. Sony SLT-A55 Review: 1. Introduction: Digital Photography Review

09-21-2010, 02:20 AM	#73
fzwo Forum Member Join Date: Jul 2010 Posts: 81	I have hooked up my K-7 to my girlfriends' TV this morning, and it seems as if what I posted about switching aspect ratio in movie mode was correct. The TV doesn't give lots of details on input resolution though. I thought I could test on my monitor (which gives very detailed statistics), but I don't have a HDMI->DVI converter handy. I think it's becoming clear that Pentax doesn't care about video except as a bullet point on the spec sheet.

09-21-2010, 02:40 AM	#74
Jasvox Veteran Member Join Date: Oct 2007 Location: Melbourne, Australia Posts: 3,107	Originally posted by jogiba If you want HD video and AF with the same sensor get the new Sony SLT-A55V for $749.99. Sony SLT-A55 Review: 1. Introduction: Digital Photography Review or the D7000...seems to be more advanced than the K-5 in my opinion. (and costs less) Jason

09-22-2010, 07:10 AM	#75
TZH Senior Member Join Date: Aug 2010 Location: Kuala Lumpur Photos: Gallery \| Albums Posts: 118	Originally posted by Jasvox or the D7000...seems to be more advanced than the K-5 in my opinion. (and costs less) Jason So we have to wait for K-5 replacement again

K-5 manual video controls - KILLER FEATURE

Win a Pentax Limited Lens: Raffle Now Live!