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Panasonic Lumix DMC-FZ28 Gordon Laing, November 2008


Panasonic Lumix DMC-FZ28 results :
Outdoor resolution / Studio resolution / High ISO Noise

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  Panasonic Lumix DMC-FZ28 resolution comparison

  To measure and compare the Panasonic Lumix DMC-FZ28's resolving power we photographed the Enhanced Digital Camera Resolution Chart with it and a number of rival compacts, each using their best quality JPEG and default image tone and sharpening settings. Each camera was tested at every aperture setting and the best result selected for this page.

The crops are taken from the original images, saved as High Quality JPEGs in Photoshop CS2 and presented here at 100%. Each number represents 100 lines per picture height (lpph), so a figure of 20 means a resolution of 2000 lpph.

In terms of resolving power, the Panasonic Lumix DMC-FZ28 at 15mm f4 delivers 2150 lpph of horizontal and vertical resolution. This is a small but measurable step-up from the 2000 lpph of the FZ18 before it, and roughly equivalent to the resolution of its arch rival, the Canon PowerShot SX10 IS.

We shot the chart at each of the FZ28's aperture settings and found f4.0 to deliver the best result, although f5.6 was very close; indeed it also scored 2150 lpph, but with fractionally less crisp edges. This will come as some relief to anyone concerned by the FZ28's automatic selection of f5.6 in Program mode for the outdoor tests on the previous page, although f4.0 would ultimately have made more sense on Panasonic's Program line.

Beyond f5.6 though, diffraction quickly kicks-in at smaller apertures, with the FZ28's resolution dropping to 1750 lpph at its minimum of f8. Diffraction seems to hit the SX10 IS worse at smaller apertures though, scoring 1600 lpph in this test when closed to f8.

One big advantage the FZ28 has over the Canon SX10 IS is the ability to record files in the RAW format. Scroll to the bottom of this page to see the boost in resolution it delivers. Alternatively if you can't wait to see how it performs at higher sensitivities, head straight over to our Panasonic Lumix DMC-FZ28 High ISO results page.


Panasonic Lumix DMC-FZ28
Panasonic Lumix DMC-FZ18
2150 lpph, 4.8-86.4mm at 15mm, f4, 100 ISO
2000 lpph, 4.6-82.8mm at 11mm f4, 100 ISO
Canon PowerShot SX10 IS
 
Canon EOS 450D / XSi
with EF-S 18-55mm IS
2150 lpph, 5-100mm at 15mm, f4, 80 ISO
2200 lpph, EF-S 18-55mm IS at 35mm, f8, 100 ISO


Panasonic Lumix DMC-FZ28
Panasonic Lumix DMC-FZ18
2150 lpph, 4.8-86.4mm at 15mm, f4, 100 ISO
2000 lpph, 4.6-82.8mm at 11mm f4, 100 ISO


Canon PowerShot SX10 IS
 
Canon EOS 450D / XSi
with EF-S 18-55mm IS
2150 lpph, 5-100mm at 15mm, f4, 80 ISO
2225 lpph, EF-S 18-55mm IS at 35mm, f8, 100 ISO


Panasonic Lumix DMC-FZ28 Studio resolution: JPEG versus RAW

We photographed our test chart in the Lumix FZ28's RAW plus Fine JPEG mode, allowing us to directly compare images created from exactly the same data. Below are 100% crops taken from the original JPEG file alongside the RAW version, processed using the supplied Silkypix Developer Studio 3.0SE software and its default settings.

The processed RAW file delivers a measurably higher resolution of 2250 lpph, and details beyond which are lost in the JPEG - this is a key advantage over the Canon SX10 IS which can only record JPEGs. Pixel peepers will however notice evidence of fringing on the RAW crops which aren't present on the JPEGs. The crops are taken from the same original files, but confirm the FZ28's in-camera digital correction of fringing on JPEGs - you can read more about this on the first results page and see a real-life comparison on our Features page.

Now let's check out the camera's performance at different sensitivities in our Panasonic Lumix DMC-FZ28 noise results page.


Panasonic Lumix DMC-FZ28: JPEG
Panasonic Lumix DMC-FZ28: RAW
2150 lpph, 4.8-86.4mm at 15mm, f4, 100 ISO
2250 lpph, 4.8-86.4mm at 15mm, f4, 100 ISO

Panasonic Lumix DMC-FZ28: JPEG
Panasonic Lumix DMC-FZ28: RAW
2150 lpph, 4.8-86.4mm at 15mm, f4, 100 ISO
2225 lpph, 4.8-86.4mm at 15mm, f4, 100 ISO


Panasonic Lumix DMC-FZ28 results continued...

Outdoor resolution / Studio resolution / High ISO Noise


All words, images, videos and layout, copyright 2005-2014 Gordon Laing. May not be used without permission.

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