Re: Trading resolution for high ISO

2008-02-25 Thread John Francis
On Sun, Feb 24, 2008 at 11:05:04PM +0800, Sandy Harris wrote: On Fri, Feb 1, 2008 at 2:51 PM, John Francis [EMAIL PROTECTED] wrote: So given, say, a K20D with its 14 Mp, can we somehow combine sets of four dots to get a 3.5 Mp image with better performance in available darkness? Or

Re: Trading resolution for high ISO

2008-02-24 Thread Sandy Harris
On Fri, Feb 1, 2008 at 2:51 PM, John Francis [EMAIL PROTECTED] wrote: So given, say, a K20D with its 14 Mp, can we somehow combine sets of four dots to get a 3.5 Mp image with better performance in available darkness? Or would this also push noise up, perhaps to awfuI levels?

Re: Trading resolution for high ISO

2008-02-01 Thread Adam Maas
On 2/1/08, John Francis [EMAIL PROTECTED] wrote: On Fri, Feb 01, 2008 at 02:40:12PM +0800, Sandy Harris wrote: There are lots of photos that do not need to have high resolution. The new high-definition TVs are just under 2 megapixels, as is a 4 by 5 print at 300 dpi. PC screens range from

Trading resolution for high ISO

2008-01-31 Thread Sandy Harris
There are lots of photos that do not need to have high resolution. The new high-definition TVs are just under 2 megapixels, as is a 4 by 5 print at 300 dpi. PC screens range from about .5 to about three Mp. For most web display anything over one Mp or so is wasted. So given, say, a K20D with its

Re: Trading resolution for high ISO

2008-01-31 Thread John Francis
On Fri, Feb 01, 2008 at 02:40:12PM +0800, Sandy Harris wrote: There are lots of photos that do not need to have high resolution. The new high-definition TVs are just under 2 megapixels, as is a 4 by 5 print at 300 dpi. PC screens range from about .5 to about three Mp. For most web display