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Sony RX10 M3: JPG Samples from ISO 125 to 1600 / Extra fine to Standard
Introduction | Test Photos - Extra fine | Test Photos - Fine | Test Photos - Standard | Conclusions | References
On this page and and another one, I present photos of "grassy structures" at various ISO values that I use to compare with similar Photos taken with the Panasonic TZ202. On both pages, I use the same photos, but arrange them differently. Here, the main purpose is to find out how these structures are reproduced at various JPG compression modes and also at various ISO values. Here, the main purpose is to find out how these structures are reproduced at various ISO values - and also at various JPG compression modes.
Introduction
It is not easy to find motifs where you can demonstrate how details get lost due to noise reduction at higher ISO values. Grass seen from a distance seems, according to my experience, to be a motif which is quite suitable for such purposes. It was, however, unclear to me, whether such photos are also usable for detecting differences in the compression modes...
Test Photos - Extra fine
For these tests, I took more or less identical photos of the same scene:
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About the photos: Settings: Aperture f/5.6, ISO values between 125 and 1600, EV -0.7, a focal length of 300 mm (equiv.) JPG compression = Extra fine Contrast, sharpness, and saturation are on their default values. Click the photo sections to open 100% versions of them in a new window. The original photos can be downloaded by clicking the links below the sections. |
Section 1
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ISO 125 (original) |
ISO 200 (original) |
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ISO 400 (original) |
ISO 800 (original) |
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ISO 1600 (original) |
ISO 125 (original) - repeated for comparison |
Section 2
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ISO 125 (original) |
ISO 200 (original) |
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ISO 400 (original) |
ISO 800 (original) |
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ISO 1600 (original) |
ISO 125 (original) - repeated for comparison |
Section 3
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ISO 125 (original) |
ISO 200 (original) |
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ISO 400 (original) |
ISO 800 (original) |
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ISO 1600 (original) |
ISO 125 (original) - repeated for comparison |
Test Photos - Fine
For these tests, I took more or less identical photos of the same scene:
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About the photos: Settings: Aperture f/5.6, ISO values between 125 and 1600, EV -0.7, a focal length of 300 mm (equiv.) JPG compression = Fine Contrast, sharpness, and saturation are on their default values. Click the photo sections to open 100% versions of them in a new window. The original photos can be downloaded by clicking the links below the sections. |
Section 1
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ISO 125 (original) |
ISO 200 (original) |
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ISO 400 (original) |
ISO 800 (original) |
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ISO 1600 (original) |
ISO 125 (original) - repeated for comparison |
Section 2
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ISO 125 (original) |
ISO 200 (original) |
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ISO 400 (original) |
ISO 800 (original) |
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ISO 1600 (original) |
ISO 125 (original) - repeated for comparison |
Section 3
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ISO 125 (original) |
ISO 200 (original) |
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ISO 400 (original) |
ISO 800 (original) |
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ISO 1600 (original) |
ISO 125 (original) - repeated for comparison |
Test Photos - Standard
For these tests, I took more or less identical photos of the same scene:
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About the photos: Settings: Aperture f/5.6, ISO values between 125 and 1600, EV -0.7, a focal length of 300 mm (equiv.) JPG compression = Standard Contrast, sharpness, and saturation are on their default values. Click the photo sections to open 100% versions of them in a new window. The original photos can be downloaded by clicking the links below the sections. |
Section 1
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ISO 125 (original) |
ISO 200 (original) |
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ISO 400 (original) |
ISO 800 (original) |
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ISO 1600 (original) |
ISO 125 (original) - repeated for comparison |
Section 2
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ISO 125 (original) |
ISO 200 (original) |
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ISO 400 (original) |
ISO 800 (original) |
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ISO 1600 (original) |
ISO 125 (original) - repeated for comparison |
Section 3
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ISO 125 (original) |
ISO 200 (original) |
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ISO 400 (original) |
ISO 800 (original) |
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ISO 1600 (original) |
ISO 125 (original) - repeated for comparison |
Conclusions
The test photos on this page are no "scientific work" and should have been done with a tripod and perhaps with manual focus.
ISO: Up to ISO 800, I find the results quite good, although ISO 400 is, of course, better than ISO 800. At ISO 1600, the "losses" of details due to noise reduction are clearly visible, although the results are still acceptable in many situations and a lot better than what the Panasonic TZ202 delivers.
I found, however, situations, in which the RX10 M3 showed stronger JPG artifacts than the TZ202 (for example, soil), probably because of its more aggressive processing. In my opinion, the TZ202 provided more acceptable results there.
JPG Compression: I cannot see any differences in the samples caused by differences in the JPG compression, and this seems to be independent of the ISO values.
After all, I do not have the impression that my photos are suitable for finding differences between the three compression modes, because there is already too much variance in the photos. Nevertheless, you can download the originals, and perhaps they are useful for making up your mind on your own...
My test also shows that the results depend very much on the object that you photograph.
References
- Alexander S. White (2016). Photographer’s Guide to the Sony DSC-RX10 III. White Knight Press, Henrico, Virginia (ISBN: 978-1-937986-54-4 (paperback), 978-1-937986-55-1 (ebook))
- Henning Fuchs (2016). Sony RX10 III - Die fehlende Anleitung. Amazon CreateSpace Independent Publishing (ISBN: 978-1537703459 (paperback)).
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| 26.02.2019 |