Does the C6 really have superior ISO? at DVinfo.net

Graham Jones · March 24th, 2006, 10:28 AM

HD1:
ISO speeds: 50-400 still image, 200-1600 in movie mode

C6:
ISO speeds: 50-400 still image, 450-3600 in movie mode

C5:
ISO speeds: 50-400 still image, 200-800 in movie mode

Thus, still image are same performance but the movie low light performance of C6 is little more than twice of HD1 or 4 times of C5.

( this is a quotation from Steve's Forums http://www.stevesforums.com/forums/v...28&forum_id=27 )

Patrick Tobey · March 24th, 2006, 12:48 PM

Graham,

Try This URL for ISO comparison:

http://c-kom.homeip.net/review/blog/...c1c6hd1_i.html

Or for a Google translation in English:

http://translate.google.com/translat...language_tools

Chris Wells · March 24th, 2006, 03:51 PM

Thanks for that post Patrick, I had no idea the C6 was that much more effective in low light.

Does anyone know if the C6 firmware update made this difference, or if it was that much better in low light from the start?

David Kennett · March 25th, 2006, 03:39 PM

The limitation in low light sensitivity is noise coming from the sensor. Want me to design a camcorder with 6400 ISO? I just crank up the gain in video amp! The real test would be to bring up video level (contrast & brightness) of the HD! (in post) to match the C6 - then evaluate for noise. The fact that the picture is a little darker can be corrected in post - fixing the noise is tougher. Sometimes I prefer a picture that is a little darker - making the noise a little less obvious

Chris Wells · March 25th, 2006, 04:08 PM

Post processing does not compensate for image blurr, and is somewhat ineffective when the scene contains lighting shifts. There are advantages to recording at both higher and lower ISO settings and, while post processing will solve some issues, it's not a total solution.

Graham Jones · March 26th, 2006, 01:21 PM

Thanks for link Patrick - full of interesting info about the HD1!

Graham Jones · April 7th, 2006, 04:39 PM

From Camcorderinfo's review:

http://www.camcorderinfo.com/content...der-Review.htm

Chris Taylor · April 7th, 2006, 06:20 PM

Excuse me have a question :-) how do I select 1600 iso for the HD1 I only see upto 400 ?

Chris Taylor
http://www.nerys.com/

Jacky Yew · April 8th, 2006, 12:12 AM

HD1 add four pixels (RGBG) into one, so sensitivity in video mode is 4x selected ISO value.

For low light, try 640x480 30fps, seems less noise than HD

March 24th, 2006, 10:28 AM	#1
Graham Jones Major Player Join Date: Jan 2004 Location: Europe Posts: 489	Does the C6 really have superior ISO? HD1: ISO speeds: 50-400 still image, 200-1600 in movie mode C6: ISO speeds: 50-400 still image, 450-3600 in movie mode C5: ISO speeds: 50-400 still image, 200-800 in movie mode Thus, still image are same performance but the movie low light performance of C6 is little more than twice of HD1 or 4 times of C5. ( this is a quotation from Steve's Forums http://www.stevesforums.com/forums/v...28&forum_id=27 ) __________________ www.irishfilmmaker.com

March 24th, 2006, 12:48 PM	#2
Patrick Tobey Tourist Join Date: Mar 2006 Location: LSMO, USA Posts: 2	C1 / C6 / HD1 ISO Comparison Graham, Try This URL for ISO comparison: http://c-kom.homeip.net/review/blog/...c1c6hd1_i.html Or for a Google translation in English: http://translate.google.com/translat...language_tools

March 25th, 2006, 03:39 PM	#4
David Kennett Major Player Join Date: Jul 2003 Location: North Ridgeville, Ohio Posts: 407	The limitation in low light sensitivity is noise coming from the sensor. Want me to design a camcorder with 6400 ISO? I just crank up the gain in video amp! The real test would be to bring up video level (contrast & brightness) of the HD! (in post) to match the C6 - then evaluate for noise. The fact that the picture is a little darker can be corrected in post - fixing the noise is tougher. Sometimes I prefer a picture that is a little darker - making the noise a little less obvious __________________ Dave

March 26th, 2006, 01:21 PM	#6
Graham Jones Major Player Join Date: Jan 2004 Location: Europe Posts: 489	Thanks for link Patrick - full of interesting info about the HD1! __________________ www.irishfilmmaker.com

April 7th, 2006, 04:39 PM	#7
Graham Jones Major Player Join Date: Jan 2004 Location: Europe Posts: 489	From Camcorderinfo's review: http://www.camcorderinfo.com/content...der-Review.htm __________________ www.irishfilmmaker.com Last edited by Graham Jones; April 8th, 2006 at 01:38 AM.

March 24th, 2006, 03:51 PM	#3
Chris Wells Regular Crew Join Date: Mar 2006 Location: Kelowna, Canada Posts: 148	Thanks for that post Patrick, I had no idea the C6 was that much more effective in low light. Does anyone know if the C6 firmware update made this difference, or if it was that much better in low light from the start?

March 25th, 2006, 04:08 PM	#5
Chris Wells Regular Crew Join Date: Mar 2006 Location: Kelowna, Canada Posts: 148	Post processing does not compensate for image blurr, and is somewhat ineffective when the scene contains lighting shifts. There are advantages to recording at both higher and lower ISO settings and, while post processing will solve some issues, it's not a total solution.

April 7th, 2006, 06:20 PM	#8
Chris Taylor Regular Crew Join Date: Apr 2006 Location: Levittown PA Posts: 132	Excuse me have a question :-) how do I select 1600 iso for the HD1 I only see upto 400 ? Chris Taylor http://www.nerys.com/

April 8th, 2006, 12:12 AM	#9
Jacky Yew New Boot Join Date: Apr 2006 Location: Hong Kong Posts: 9	HD1 add four pixels (RGBG) into one, so sensitivity in video mode is 4x selected ISO value. For low light, try 640x480 30fps, seems less noise than HD