Which detail do I look for at DVinfo.net

Ron Aerts · February 25th, 2012, 04:31 AM

Did some field testing with an F3 last week recording to both SxS and NF. In mid-sunny weather I steadicammed through woody environment. I used an AC profile with CinGam 1. Did different approaches on DOF.
At 25p 280Mb/I-frame I just can't find differences in detail when comparing it to the SxS, even with some colorgrading.
What am I looking for? How can I force this difference?

Ron Aerts · February 27th, 2012, 10:54 AM

So, no one?
Maybe some real life exemples to post...

Jack Zhang · February 27th, 2012, 10:37 PM

If you isolate the red channel, you will see the Nanoflash has superior red chroma resolution than SxS, 4:2:2 vs 4:2:0.

It may also be worthwhile to check you are not recording 1080i as opposed to 1080PsF. That also makes a difference thanks to interlaced chroma vs progressive chroma.

Gints Klimanis · February 29th, 2012, 03:05 PM

What were the lens and shutter speed parameters for your shoot in the woods?

I've been surprised that not every shoot improves from recording at higher bitrates (50/100 Mbps LongGOP or 280 Mbps I-Frame) when compared to SxS on a Sony EX1 with 10-20 random frame grabs of the same slice in time. Also, I have been surprised that scenes at higher bitrates contain much more noise but not more appreciable detail.

Most of the shoots that have not yielded improvements were captured with the lens at wider apertures (shallowed DOF + lower lens sharpness) and slower shutter speeds 1/30, even on a tripod. Outdoor scenes with shutter speeds of 1/100 and f/4 .. f/5.6 exceed SxS and show an appreciable improvement. Lens and motion blur limit the utility.

Dan Keaton · March 1st, 2012, 01:29 AM

Dear Friends,

Here is an image with lots of detail and movement for comparison purposes:

February 25th, 2012, 04:31 AM	#1
Ron Aerts Regular Crew Join Date: Feb 2010 Location: Drachten, Netherlands Posts: 179	Which detail do I look for Did some field testing with an F3 last week recording to both SxS and NF. In mid-sunny weather I steadicammed through woody environment. I used an AC profile with CinGam 1. Did different approaches on DOF. At 25p 280Mb/I-frame I just can't find differences in detail when comparing it to the SxS, even with some colorgrading. What am I looking for? How can I force this difference? Last edited by Ron Aerts; February 25th, 2012 at 06:41 AM.

February 27th, 2012, 10:54 AM	#2
Ron Aerts Regular Crew Join Date: Feb 2010 Location: Drachten, Netherlands Posts: 179	Re: Which detail do I look for So, no one? Maybe some real life exemples to post...

February 27th, 2012, 10:37 PM	#3
Jack Zhang Inner Circle Join Date: May 2005 Location: Burnaby, BC, Canada Posts: 3,053	Re: Which detail do I look for If you isolate the red channel, you will see the Nanoflash has superior red chroma resolution than SxS, 4:2:2 vs 4:2:0. It may also be worthwhile to check you are not recording 1080i as opposed to 1080PsF. That also makes a difference thanks to interlaced chroma vs progressive chroma.

February 29th, 2012, 03:05 PM	#4
Gints Klimanis Inner Circle Join Date: Jun 2003 Location: San Jose, CA Posts: 2,222	Re: Which detail do I look for What were the lens and shutter speed parameters for your shoot in the woods? I've been surprised that not every shoot improves from recording at higher bitrates (50/100 Mbps LongGOP or 280 Mbps I-Frame) when compared to SxS on a Sony EX1 with 10-20 random frame grabs of the same slice in time. Also, I have been surprised that scenes at higher bitrates contain much more noise but not more appreciable detail. Most of the shoots that have not yielded improvements were captured with the lens at wider apertures (shallowed DOF + lower lens sharpness) and slower shutter speeds 1/30, even on a tripod. Outdoor scenes with shutter speeds of 1/100 and f/4 .. f/5.6 exceed SxS and show an appreciable improvement. Lens and motion blur limit the utility.

March 1st, 2012, 01:29 AM	#5
Dan Keaton Inner Circle Join Date: Dec 2002 Location: Augusta Georgia Posts: 5,421	Re: Which detail do I look for Dear Friends, Here is an image with lots of detail and movement for comparison purposes: Attached Thumbnails __________________ Dan Keaton Augusta Georgia