QUOTE(sniper on the roof @ May 14 2012, 12:10 PM)
http://www.flickr.com/photos/whitehouse/71.../in/photostreamDo homework for you
Enthuasiast compact focal length vs aperture table.
Don't just look at the widest...
see the max aperture throughout common focal length.
All these sensor sweet spot less than ISO200 and more or less tops out (imo) at around ISO400 +/- 1/2 stops...
everything else is noise vs details.
Example... If I wanna shoot a portrait of bini/gf/mother/mistress
indoors in a restaurant.
XZ-1 - 50mm focal length, f2.0, ISO200.
S100 - 50mm focal length, max aperture f4 means my ISO have to go up to ISO800 to get same shutter speed.
LX5 - 50mm focal length, max aperture f2.7 means my ISO have to go up to ISO400 to get same shutter speed.
About the smearing.. depend on how you look at it. Yes, the XZ-1 jpeg smears but the girls like it as it blurs out blemishes
... and most compact smears (my Sony HX9V smears even more).. S90 smears less but the details is not there in the beginning. You can always shoot raw... and if you don't like/use Lightroom.. you can always run that awful bundled raw-editor... turn off Noise Reduction as a preset and then just apply to all your pics = kau tim.
Wow, thanks a lot Sniper! Your comparison really made me understand slightly more about how the two min and max F-number works out. For F2.0 and F1.8 seems a small difference but when zoomed out it seems like a big difference. Your replies made me went to read (and still reading) about why we should shoot portraits at 50mm also.
So what this means is that, when zoomed in, we can't really compare the cameras only based on the ISO where the zx1 and lx5 will be using a lower iso than the canon. And when the camera is not zoomed in, the iso will be around the same?
Why the jpeg smearing thing got stuck in my head is because I will be shooting jpeg 99% of the time. I run Ubuntu at home, so I do not have access to lightroom or the bundled raw editor.
May 14 2012, 11:25 AM
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