The end of 35mm adapers and hv20s....

In-camera saturation for Panny LX3

In-camera saturation for Panny LX3

Not my footage. But I'm sure the contrast can be turned down. It has am impressive amount of manual settings..
Also, it has a CCD. Ever tried a CMOS camera for aerial video or a helmet cam or surf videos ? Try it and see what I'm talking about.
 
zcream said:
http://www.camcorderinfo.com/content/Canon-HV20-Camcorder-Review/Performance.htm#

>>>
Video Resolution (18.75)
To test the resolution of the Canon HV20’s video, we shoot a DSC Labs video resolution CamAlign chart under bright, even light. Resolution is measured in line widths per picture height. In 1080i, the HV20 showed a vertical resolution of 575 lw/ph and a horizontal resolution of 625 lw/ph. In 24P, the camcorder actually improved the vertical resolution, producing less break-up and artifacting in areas of high-density information, boosting the vertical resolution up to 600 lw/ph. The horizontal resolution remained unchanged at 625 lw/ph.
>>>
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zcream said:
So the resolution on a decent video on the D90 would be about 700-800 lines I'd reckon..With a decent glass..
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I don't think so because true resolution is limited to about half of the sampled resolution which is proven in theories by a man named Nyqvist.

Looking at the numbers from the HV20 review we see that it got a vertical resolution of 575 which is about half of 1080. Horizontal 625 is about half of 1440.

In a review of a 720p camcorder the following was found:
We found the SC-HMX10 produces a horizontal resolution of 425 line widths per picture height (lw/ph) and a vertical resolution of 425 lw/ph.
source

Those values are similar to what the resolution chart Joe shot shows.


However, I think mostly colors and depth of field are what makes pictures appealing, not resolution.

EDIT: And moving pictures should not look Jerky, which reminds me of this! =). To make moving pictures with a low framerate smooth there has to be some motion blur. We need to figure out how to control the shutter speed.
 
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zcream said:
Not my footage. But I'm sure the contrast can be turned down. It has am impressive amount of manual settings..
Also, it has a CCD. Ever tried a CMOS camera for aerial video or a helmet cam or surf videos ? Try it and see what I'm talking about.
Click to expand...

No one said the D90 or even CMOS was ideal for every application. I'd much rather attach an LX3 to a helmet than a D90 anyway.
 
HV20 native res is 1920 not 1440 but I get your point. So we are talking lower res than the HV20. Hmmm.. Is the bokeh and dynamic range worth sacrifcing nearly 30% resolution ?
 
In mine too.

And about 1920 vs 1440. The native resolution is resampled to 1440 prior saving it to tape. The value 625 wouldn't have changed much if resolution before resampling was 4k.
 
Thank you guys for all the samples and test you have done so far. I have to be honest but I’ve seen a lot sharper images coming from an HV20/30 attached to a DOF adapter than I have with any of these images. I love the dynamic range of the cam and the bold colors…but that’s where it stops for me. Nice try Nikon. As suggested earlier…maybe a firmware update (or even a hack) would get more performance out of this cam.
 
bearing said:
I don't think so because true resolution is limited to about half of the sampled resolution which is proven in theories by a man named Nyqvist.

Looking at the numbers from the HV20 review we see that it got a vertical resolution of 575 which is about half of 1080. Horizontal 625 is about half of 1440.

In a review of a 720p camcorder the following was found:
We found the SC-HMX10 produces a horizontal resolution of 425 line widths per picture height (lw/ph) and a vertical resolution of 425 lw/ph.
source

Those values are similar to what the resolution chart Joe shot shows.

However, I think mostly colors and depth of field are what makes pictures appealing, not resolution.

EDIT: And moving pictures should not look Jerky, which reminds me of this! =). To make moving pictures with a low framerate smooth there has to be some motion blur. We need to figure out how to control the shutter speed.
Click to expand...

i hope someone with a fine printed chart will eventually do a proper test, at least listening to my suggestions poste earlier.

until then i'll try to re:vision some motion blur & see what happens
 
Resampling

Resampling

I have the HV20 and I use a portable HDMI recorder to capture via HDMI. The resampling is a myth..Some people swear by it - some don't..Its full 1920 x 1080

bearing said:
In mine too.

And about 1920 vs 1440. The native resolution is resampled to 1440 prior saving it to tape. The value 625 wouldn't have changed much if resolution before resampling was 4k.
Click to expand...
 
Ok, I didn't know you recorded the signal before the resampling stage. I think I saw some resolution charts that showed the difference between tape and HDMI. It was small but it was there.
 
ando said:
until then i'll try to re:vision some motion blur & see what happens
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I'm sure you understood that I did not suggest making motion blur when shooting a resolution chart. I was talking about shooting reality; things that move.

One thing I think is funny is trying to get as high resolution as possible and then shooting 24P with a 1/48 shutter which often makes the high resolution pictures blurry.
 
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Madmanden said:
Does anyone know of a piece of software that can fix the wobble? And/or other kinds of distortions?
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The closest thing I can think of is Deshaker, which has rolling shutter compensation.

http://www.guthspot.se/video/deshaker.htm#rolling%20shutter%20setting
Examples here:
http://forums.steves-digicams.com/forums/view_topic.php?id=590946&forum_id=92

The future will bring rolling shutter compensation into future DSPs so that it can be done within the camera itself, and not in post. Relatively speaking, shutter
distortion in horizontal and vertical motions have low computational complexity hence should not be too difficult to implement (unlike rotational and zooming movements).

There are other technical ways of reducing rolling shutter, but these rolling shutter compensation algorithms don't require any modification to sensor design.

Picture2.png

Picture3.png
 
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kevm14 said:
It is DX not FX. While it has a decent build quality with some metal in its construction it is assuredly NOT a pro lens. I have one. But they hit the mark considering the inherent compromise in such an aggressive design.
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sure, dx not fx a typo (f right next to d on the keyboard) LOL.

Nikon has always discerned their pro from non pro by the metallic body (and prices of course) of course you could argue all you want that the dx format is not a "pro" format...bla,bla,bla. it's all semantic really. Having started in photography over 25 years ago with a nikon" F" a 50mm nikkor, evrything is pro today by yesterday standard.

to me pro mean the ability to endure the field and heavy use. Nikon doesn't make bad optics, they are actually the leader in photographic optics, their "pro" rating is not based on optics quality, never have been including their "E" series. It's mostly the construction... :)

Last, what make a pro photographer isn't what the photographer caries in his bag... LOL
 
.

Constructive /destructive input is welcomed, but dont change the topic to HV20/30 as some of us are trying to read this tread and get some info.(or LX3.)





SomewhereinLA said:
sure, dx not fx a typo (f right next to d on the keyboard) LOL.

Nikon has always discerned their pro from non pro by the metallic body (and prices of course) of course you could argue all you want that the dx format is not a "pro" format...bla,bla,bla. it's all semantic really. Having started in photography over 25 years ago with a nikon" F" a 50mm nikkor, evrything is pro today by yesterday standard.

to me pro mean the ability to endure the field and heavy use. Nikon doesn't make bad optics, they are actually the leader in photographic optics, their "pro" rating is not based on optics quality, never have been including their "E" series. It's mostly the construction... :)

Last, what make a pro photographer isn't what the photographer caries in his bag... LOL
Click to expand...

LOL
 
Used a mini-ITX board with a PCI-e extender + Blackmagic Intensity card. Added a LiOn battery and a port for eSATA.
Have a Cineform license.. Essentially a DIY portable with a touchscreen and the Intensity card. The quality is awesome.
Thats why I was going on about the HDMI on the D90. Its not at all hard to capture uncompressed if the D90 can be made to output 1080p 4:2:2 uncompressed or even 4:4:4 on the HDMI port..
And really, I think its doable..

Madmanden said:
Which portable recorder is that?
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