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Panasonic Lumix DMC-TZ18 / ZS8 Gordon Laing, April 2011
 

Panasonic Lumix DMC-TZ18 / ZS8 results : Real-life resolution / High ISO Noise


Panasonic Lumix DMC-TZ18 / ZS8 vs Lumix DMC-TZ20 / ZS10 Real-life resolution


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To compare real-life performance we shot the same scene with the Panasonic Lumix DMC-TZ18 / ZS8 and Lumix DMC-TZ20 / ZS10 within a few moments of each other using their best quality JPEG settings and lowest sensitivities.

The lenses were adjusted to deliver as close a field-of-view as possible. Each camera was set to Program mode without intervention to see how they performed with default settings.The image above was taken with the Panasonic Lumix DMC-TZ18 / ZS8 at 100 ISO with an exposure of 1/500 and the lens set to 6.4mm f4; the original file measured 5.29MB. As stated above, we allowed each camera to automatically select its own exposure in Program mode, in order to compare how they performed under default settings. Coincidentally both selected the same large aperture of f4, which gratifyingly avoided diffraction.

Both cameras share the same 14.1 Megapixel resolution and the same 16x optical zoom lens, so what you're seeing here and on the next page is a comparison between their respective sensor technology and processing styles: the TZ18 / ZS8 employs a CCD sensor, compared to CMOS on the TZ20 / ZS10.

At first glance, the crops from both models below appear pretty much identical for the brightly lit scene we photographed at the lowest sensitivity. Look closely though and some differences emerge.

There's a very subtle smattering of noise textures throughout the TZ20 / ZS10 crops which aren't as visible on the TZ18 / ZS8. You may also notice some fine details are smeared on the TZ20 / ZS10, in particular on the trees in the third row of crops. Here some of the trees on the TZ20 / ZS10 crop look smudged and are lacking the finer details seen alongside on the TZ18 / ZS8.

As such the image from the cheaper TZ18 / ZS8 is ultimately preferred over its pricier counterpart, but seeing any difference will require some pixel-peeping on-screen at 100%. If you're viewing at lower magnifications or making prints, you'd be unlikely to notice much if any difference between the TZ18 / ZS8 and TZ20 / ZS10 for brightly lit subjects and with each camera set to its lowest sensitivity.

What happens in low light when the sensitivity is boosted on each model though? Find out in our Lumix TZ18 / ZS8 High ISO Noise results, or if you've seen enough already, head straight to our Verdict.


Panasonic Lumix DMC-TZ18 / ZS8
 
Panasonic Lumix DMC-TZ20 / ZS10
f4, 100 ISO
f4, 100 ISO
     
f4, 100 ISO
f4, 100 ISO
     
f4, 100 ISO
f4, 100 ISO
     
f4, 100 ISO
f4, 100 ISO


Panasonic Lumix DMC-TZ18 / ZS8 results : Real-life resolution / High ISO Noise



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