SI-2K CMOS Size at DVinfo.net

Andronico Gonzalez · September 17th, 2009, 08:38 PM

I post in the silicon imaging forums last week and no one answer me.

I read in a Fletcher comparison chart that the SI-2K sensor is 10.3 X 5.76 mm. Is this accurate?, s16mm is 10.6 X 6 mm, so the difference would be really small 0.033%.

Kaspar Kallas · September 18th, 2009, 01:16 AM

Hi

the sensor has pixels size of 5 microns.
So full 2K is (2048x1152)=10.24x5.76mm
1080 (1920x1080)=9.6x5.4mm
720 (1280x720)=6.4x3.6mm

Hope this helps, have not had time lately to check SI forum.
-Kaspar

Rohan Dadswell · September 18th, 2009, 03:39 AM

I was under the impression that Super 16 frame size was 12.52mm x 7.41mm (std 16 10.26 x 7.49)

There does seem to be a different field of view from S16 to SI-2K

Kaspar Kallas · September 18th, 2009, 08:23 AM

Hi

You are correct about S16 (16 mm film - Wikipedia, the free encyclopedia)
I use multiplier of 1.2(2)

-Kaspar

Andronico Gonzalez · September 19th, 2009, 12:17 PM

Hi Kaspar & Rohan,

By a mistake in my notes I use the frame size of standard 16mm instead of s16 mm, but you are also wrong because Wikipedia dimensions doesn't use the standard ISO 5768:1998
As you can see Panavision or Zeiss does:
Information: Formats
http://www.zeiss.com/C12567A8003B8B6F/EmbedTitelIntern/ARRIUltra16Brochure/$File/ARRI_Ultra16_brochure.pdf

Kaspar, Where do you find the info about the pixel size in SI-2K CMOS sensor?

Steve Nordhauser · October 1st, 2009, 03:47 PM

Kaspar is exactly correct in the sensor pixel size and the effective sensor size at various resolutions. It should be in our specs and is in the FAQ. One of the problems in saying that a sensor is exactly a film size is the variation in aspect ratio involved.
-Steve

September 17th, 2009, 08:38 PM	#1
Andronico Gonzalez New Boot Join Date: Apr 2009 Location: Distrito Federal, Mexico Posts: 12	SI-2K CMOS Size I post in the silicon imaging forums last week and no one answer me. I read in a Fletcher comparison chart that the SI-2K sensor is 10.3 X 5.76 mm. Is this accurate?, s16mm is 10.6 X 6 mm, so the difference would be really small 0.033%. __________________ ANDRONICO GONZALEZ Director of Photography - Mexico

September 19th, 2009, 12:17 PM	#5
Andronico Gonzalez New Boot Join Date: Apr 2009 Location: Distrito Federal, Mexico Posts: 12	Hi Kaspar & Rohan, By a mistake in my notes I use the frame size of standard 16mm instead of s16 mm, but you are also wrong because Wikipedia dimensions doesn't use the standard ISO 5768:1998 As you can see Panavision or Zeiss does: Information: Formats http://www.zeiss.com/C12567A8003B8B6F/EmbedTitelIntern/ARRIUltra16Brochure/$File/ARRI_Ultra16_brochure.pdf Kaspar, Where do you find the info about the pixel size in SI-2K CMOS sensor? __________________ ANDRONICO GONZALEZ Director of Photography - Mexico

October 1st, 2009, 03:47 PM	#6
Steve Nordhauser Silicon Imaging, Inc. Join Date: May 2004 Location: Troy, NY USA Posts: 325	Kaspar is exactly correct in the sensor pixel size and the effective sensor size at various resolutions. It should be in our specs and is in the FAQ. One of the problems in saying that a sensor is exactly a film size is the variation in aspect ratio involved. -Steve __________________ Silicon Imaging, Inc. We see the Light! http://www.siliconimaging.com

September 18th, 2009, 01:16 AM	#2
Kaspar Kallas Regular Crew Join Date: Oct 2007 Location: Estonia Posts: 142	Hi the sensor has pixels size of 5 microns. So full 2K is (2048x1152)=10.24x5.76mm 1080 (1920x1080)=9.6x5.4mm 720 (1280x720)=6.4x3.6mm Hope this helps, have not had time lately to check SI forum. -Kaspar

September 18th, 2009, 03:39 AM	#3
Rohan Dadswell Major Player Join Date: Jun 2006 Location: Canberra Australia Posts: 228	I was under the impression that Super 16 frame size was 12.52mm x 7.41mm (std 16 10.26 x 7.49) There does seem to be a different field of view from S16 to SI-2K

September 18th, 2009, 08:23 AM	#4
Kaspar Kallas Regular Crew Join Date: Oct 2007 Location: Estonia Posts: 142	Hi You are correct about S16 (16 mm film - Wikipedia, the free encyclopedia) I use multiplier of 1.2(2) -Kaspar