Sony Cyber-shot DSC-TX9 Ken McMahon, December 2010
 
 
Sony Cyber-shot DSC-TX9 results : Real-life resolution / High ISO Noise

Sony Cyber-shot TX9 vs Nikon COOLPIX S80 vs Panasonic Lumix FX700 Real-life resolution

 
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To compare real-life performance when zoomed-out, we shot this scene with the Sony Cyber-shot TX9, the Nikon COOLPIX S80 and the Panasonic Lumix FX700 within a few moments of each other using their best quality JPEG settings.

The lenses on each camera were set to approximately the same field of view and all three were set to Program mode with the ISO sensitivity manually set to the lowest available setting.

The above image was taken with the Sony Cyber-shot TX9 in Program Auto mode. The lens was zoomed to 6.3mm (35mm equivalent) and the metering selected an exposure of 1/200th of a second at f4.5 with the sensitivity at 125 ISO. The original 4000 × 3000 pixel image had a file size of 4.92MB. The crops are taken from the areas marked with red rectangles and are presented here at 100%.

Our test scene usually poses something of an exposure challenge for compact sensors, but on this particular day with bright, but overcast weather conditions the scene lacks its usual wide dynamic range. The Cyber-shot TX9 has nonetheless got the exposure spot on with the histogram forming a neat hump in the middle of the x axis, tapering at either end with no clipping of highlight or shadow detail. The colour balance is good and, despite the flat lighting conditions, colours are vibrant and natural-looking.

Looking at the detail crops, the results overall from the Cyber-shot TX9 look very promising. There's a slight overall softness, but the degree is slight and fine detail is well resolved. Arguably, the edges could be a little sharper, but one problem the TX9 doesn't suffer from is over processing - these crops are very natuaral looking with no graininess, edge halos or other evidence of heavy handed image processing.

The results are fairly consistent across the frame with image detail at the edges looking as good as in the centre. There's the faintest hint of color fringing around the window frame in the third crop and this is something you'd need to watch out for, particularly with backlit subjects, but most of the time you'd be unlikely to spot it unless you were looking out for it.

The Cyber-shot TX9 crops make an interesting comparison alongside those from the Nikon COOLPIX S80. The COOLPIX S80 crops are more contrasty and at first glance look sharper than those from the Cyber-shot TX9. Closer inspection however, reveals a clumpy, granular look to the COOLPIX crops - they look more processed and less natural than those from the Cyber-shot TX9. The COOLPIX S80 edge crop, the third one down, also looks markedly softer than the others.

The crops from the Panasonic Lumix FX700 don't fare very well by comparison with the Sony Cyber-shot TX9. Like the COOLPIX S80, they have a clumpy, granular look, only on the Lumix FX700 crops it's much more noticeable. In fact, in places image detail has disappeared altogether - the crosses on the chapel roof in the first crop are very indistinct and the lighthouse in the second crop has disappeared altogether.

Now let's see how they compare at higher sensitivities in our High ISO Noise results.



Sony Cyber-shot DSC-TX9
 
Nikon COOLPIX S80
 
Panasonic Lumix DMC-FX700
f4.5, 125 ISO
f3.6, 80 ISO
f4, 100 ISO
f4.5, 125 ISO
f3.6, 80 ISO
f4, 100 ISO
f4.5, 125 ISO
f3.6, 80 ISO
f4, 100 ISO
f4.5, 125 ISO
f3.6, 80 ISO
f4, 100 ISO


Sony Cyber-shot DSC-TX9 results : Real-life resolution / High ISO Noise



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