Pentax K10D / DIWA Awards Review / e-Fotografija.si

Pentax K10D / DIWA Awards Review 16. januar 2007 - Matjaz Intihar, translated by: Joze Sveticic
Image quality All shots are taken with the Pentax K10D and 16-45 mm f/4 lens combo at various focal lengths at f/8 and ISO 100, unless otherwise specified. Pentax K10D, 40mm, 1/30 s. at ISO100, f/8. Below: 100% crops. Pentax K10D, ISO 100. Pentax K10D, ISO 100. Pentax K10D, ISO 100. Pentax K10D, ISO 400. Pentax K10D, ISO 400. Pentax K10D, ISO 400. Pentax K10D, ISO 1600. Pentax K10D, ISO 1600. Pentax K10D, ISO 1600. Pentax K10D from ISO 100 to ISO 1600. The noise becomes more pronounced at ISO 800. Pentax K10D, 16mm, 1/500 s. at ISO100, f/8. Below: 100% crops. Pentax K10D, 16mm, f/8. Pentax K10D, 16mm, f/8. Pentax K10D, 16mm, f/8. Pentax K10D, 16mm, f/8. Pentax K10D, 28mm, f/8. Pentax K10D, 28mm, f/8. Pentax K10D, 28mm, f/8. Pentax K10D, 45mm, f/8. Pentax K10D, 45mm, f/8. Pentax K10D, 45mm, f/8. Pentax K10D, 12-24mm @ 12 mm, 1/350 s. at ISO 100, f/8. Below: 100% crops. Pentax K10D, 16-45mm @ 16mm, 1/350 s. at ISO 100, f/8. Below: 100% crops. Canon 400D, 18-55mm @ 18mm, 1/400 s. at ISO 100, f/8. Below: 100% crops. There’s a noticeably colder colour cast compared to the K10D. Comparison: Left: Pentax K10D, 16-45 mm; Right: Canon 400D, 18-55 mm. 16 and 18 mm, with no postprocessing. All in-camera processing parameters were set to 0. After postprocessing in Photoshop. The file from the EOS 400D could be sharpened further. There’s a noticeable difference in the viewing angle. Also, the K10D has warmer tonality. 16 and 18 mm, with no postprocessing. All in-camera processing parameters were set to 0. With the Canon EF 18-55 mm lens, the chromatic aberration (purple fringing is more pronounced). After postprocessing in Photoshop. With strong direct lighting, the Pentax K10D preserved more minute details. However, the EOS 400D file could be sharpened further. 16 and 18 mm, with no postprocessing. All in-camera processing parameters were set to 0. Pentax (left) and Canon (right) set to 45 mm, no postprocessing. All in-camera processing parameters were set to 0. After postprocessing. As usual, image quality is difficult to quantify. Therefore, I can only give my personal opinion. All hobbyists want high-quality images. With the Pentax K10D, this is possible, except for pixel peepers who want every pixel to be perfect. I was able to make excellent 30 x 45 cm (12 x 18 inch) prints without noticing any major shortcomings. Also, noise at ISO 1600 is very well controlled and only becomes noticeable at ISO 800. Because of this, I was able to shoot at ISO 400 with no qualms about image quality. When viewing images at 100%, some shortcomings are apparent. Again: Every camera has image quality shortcomings, you just have to look for them. As to how apparent this is at normal magnifications, and especially in the final print, well, that’s a whole different story. If I were to go hunting for “shortcomings”, then the prime suspect would be the JPEG compression. I always shot JPEG in the highest possible quality (three stars). Despite this, a 10 MP image is compressed into a 2.5 MB file. The EOS 400D, on the other hand, produced a 3.31 MB file. There’s also something I already noticed with the Sony Alpha 100, which uses the same sensor. In high-contrast details, where the compression algorithm encounters huge differences between tonal values, it produces very pronounced lines.. However, it takes some searching to find such errors. Again, such minor shortcomings can be found in any camera by any manufacturer. Data compression is quite intensive. At 100% magnification and postprocessing, especially sharpening, it becomes very apparent. On average, a 10MP image is compressed to 2.5 MB at the lowest (least lossy) compression. When testing the Sony Alpha 100, I noticed strong green lines. However, with the K10D, this was only noticeable after strong postprocessing. Again, the pronounced lines and the high compression. However, print these images and you won’t be able to notice these shortcomings. Again: For hobbyists, the image quality is excellent. As usual, of course, much depends on correct post-processing. And then there’s the often neglected X factor – in a good picture, technical shortcomings are almost irrelevant. « Prev 1 2 3 [4] 5 6 7 8 Next » Avtor : Matjaz Intihar, translated by: Joze Sveticic Pentax K10D DIWA Awards Review samples Pentax K10D DIWA Awards Test - English Vstopi v stran vseh foto TESTOV - KLIK
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