odklizec
PK
Hi folks,
Today I finally processed some "side by side" test shots I took two weeks ago. This test is targeted to S10 vs. GX200 lens sharpness and chromatic aberration. Marginally, you can consider it also a dynamic range and noise test
But I'm planning to do more proper ISO test later.
The following photos were taken at all (step) zoom positions and with widest available aperture (for given zoom position). As we all know, most lenses does not perform best wide open. It's always better to stop them down a bit to obtain the best results. But I was curious how good or bad performs both lenses wide open In addition, S10 may have similar or the same construction as GX200 lens, but the diameter of S10 lens appears to be slightly larger. So it would be interesting to see if there is an impact on the image quality.
Each photo had been taken on the tripod, with self timer and in 5 copies. Both cameras were set to more or less the same settings. Then I selected the most sharpest photo from each batch. All crops were made with Pixelmator (DNG were loaded with Apple Camera RAW support integrated in OSX and used by Pixelmator).
As you can see below, there are some surprises. Before I did this test, I considered GX200 files to be more detailed than S10. But this was before I compared RAW files and I thought it was because of 12MP vs. 10MP difference. Now it's evident that GX200 JPEG processing applies much more aggressive sharpening and so the GX200 images look more detailed. However, it seems to me that S10 lens is evidently sharper and does not need that much artificial sharpening. The GX200 at 72mm and f4.4 appears to be very unsharp. It may have something to do with my problem described >here<. However, all test samples were focused in Spot mode and with enabled Macro. S10 lens simply wins in terms of sharpness.
As for chromatic aberration, here it appears that S10 produces tiny bit more aberration (except at 72mm). But the difference is only marginal and easily fixable in good image editor. In any case, both S10 and GX200 performs very well in this area. The chromatic aberration crops also show visibly greater dynamic range of S10 sensor. Some branches invisible in GX200 crops are very well visible in S10 crops.
Another thing you may notice is how noisy are the GX200 shots even at ISO100. While I personally don't care about noise (and this particular ISO100 noise is easily fixable), the things go quickly downhill in case of GX200 with each next ISO step.
(click each image to see it in 100% resolution)
Sharpness test:
CRA test (center):
CRA test (left corner):
Today I finally processed some "side by side" test shots I took two weeks ago. This test is targeted to S10 vs. GX200 lens sharpness and chromatic aberration. Marginally, you can consider it also a dynamic range and noise test
But I'm planning to do more proper ISO test later. The following photos were taken at all (step) zoom positions and with widest available aperture (for given zoom position). As we all know, most lenses does not perform best wide open. It's always better to stop them down a bit to obtain the best results. But I was curious how good or bad performs both lenses wide open
In addition, S10 may have similar or the same construction as GX200 lens, but the diameter of S10 lens appears to be slightly larger. So it would be interesting to see if there is an impact on the image quality. Each photo had been taken on the tripod, with self timer and in 5 copies. Both cameras were set to more or less the same settings. Then I selected the most sharpest photo from each batch. All crops were made with Pixelmator (DNG were loaded with Apple Camera RAW support integrated in OSX and used by Pixelmator).
As you can see below, there are some surprises. Before I did this test, I considered GX200 files to be more detailed than S10. But this was before I compared RAW files and I thought it was because of 12MP vs. 10MP difference. Now it's evident that GX200 JPEG processing applies much more aggressive sharpening and so the GX200 images look more detailed. However, it seems to me that S10 lens is evidently sharper and does not need that much artificial sharpening. The GX200 at 72mm and f4.4 appears to be very unsharp. It may have something to do with my problem described >here<. However, all test samples were focused in Spot mode and with enabled Macro. S10 lens simply wins in terms of sharpness.
As for chromatic aberration, here it appears that S10 produces tiny bit more aberration (except at 72mm). But the difference is only marginal and easily fixable in good image editor. In any case, both S10 and GX200 performs very well in this area. The chromatic aberration crops also show visibly greater dynamic range of S10 sensor. Some branches invisible in GX200 crops are very well visible in S10 crops.
Another thing you may notice is how noisy are the GX200 shots even at ISO100. While I personally don't care about noise (and this particular ISO100 noise is easily fixable), the things go quickly downhill in case of GX200 with each next ISO step.
(click each image to see it in 100% resolution)
Sharpness test:
CRA test (center):
CRA test (left corner):
