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Pentax Optio 230
- In the field (1) -
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The first impression is very good, with the camera featuring a much
quicker response in releasing the shutter, compared to my Optio 330. Thats important
while shooting action, and the Optio 330 is not lightning quick for sure. When I bought my
Optio 330, I thought that all digital cameras in the amateur segment were slow in taking
pictures compared to film cameras, but then I discovered thats not so true. Now the
Optio 230 improves a lot over the older models.
Last year I was quite surprised seeing that the Optio
330/430 were missing the tiff file format, available in previous Pentax digicams, and I
was even more surprised when I saw it back in the Optio 230. So I asked myself how much
its worth to use that space-wasting format, compared to the best jpeg (lower
compression).
The picture of a round-corner palace will answer the question, since the light gradations
on it will challenge the jpeg capabilities. By looking at enlarged areas of the image,
youll see some difference, with the brick tones shading better in the 2X enlarged
area of tiff file. All other details arent any different, so Id conclude that
the tiff file is worth whenever the picture includes very visible tone gradations.
Dont forget each picture in tiff format will take up 5.7MB instead of 900KB of the
best quality jpeg, so be sure to use that option only when necessary. |
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In the next picture I compared "low" and
"high" sharpness in menu settings. One could believe that high sharpness is
always better than low, but dont you ask the reason for having such a setting
available? No, soft is not just for romantic-style portraiture. The problem is that such
higher sharpness is obtained by adding a strong contrast mask to the picture, thus ruining
true subtle detail in favor of apparent overall picture sharpness. In the Optio 330, in my
opinion the added mask is excessive and I advise you to set the sharpness option to
"soft". That doesnt mean you add a soft digital filter, but that you
simply store an unprocessed image, to which youll then add the proper contrast mask
by a photo-retouching software on your PC, where you can enlarge details and decide the
proper amount of processing.
The bell tower of the St. Apollinare church gave me the opportunity to
compare low and high sharpness settings. As you can see in the 2X enlarged areas, the
higher sharpness is again a bit too much invasive, even though not so destructive as it is
in the Optio 330. In this case my advice is you set the sharpness to "high" in
case you never want to process image on PC and want to print small, sharp pictures. For
general use, the medium sharpness setting could be a good compromise, while if you always
want to get the most out of your pictures, set the sharpness to "low" for
shooting, and then "tune" the proper contrast mask on each picture by your
favorite image processing program.
go to part I
go to part III
go to part IV
go to part V |
Text and images are
Copyright © 2002 by Dario Bonazza
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