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Forum: Pentax K-1 & K-1 II
11-04-2018, 07:19 AM
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I think that's a good way to look at it
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Forum: Pentax K-1 & K-1 II
11-02-2018, 03:13 AM
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Yes, that's the one, thank you.
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Forum: Pentax K-1 & K-1 II
11-01-2018, 12:20 PM
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I think you are right, the right side looks worse to me...
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Forum: Pentax K-1 & K-1 II
10-31-2018, 10:33 AM
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For those who are interested to look at the photos, Pentax is always on the right in the field shots. It is on the left in the studio shots. You can move the slider, so it's kind of neat. Some things he says:
1. Comparing Pentax with Zeiss - Pentax has fewer chromatic aberrations (Hello Photozone, or what was that widely-discussed test that showed green fence as presence of chromatic aberrations?)
2. Based on the field test he concludes that there is no significant difference in resolution between Pentax and Zeiss. To me though it looks like Pentax is both sharper and has better contrast...
3. Based on studio shots, he concludes that Zeiss resolution is "just under" 80 lp/mm, Pentax between 56 and 80, saying that his target does not allow for a more precise estimate
4. DFA outresolves the sensor.
5. Imatest allows one to evaluate the resolution of the lens if it exceeds resolution of the sensor
6. "If Zeiss resolution is impressive (50 lp/mm), that of Pentax (69.4 lp/mm) is truly incredible for today's technology!" - by the way, that's my translation, could be different from Google's
7. As Medex said, he concludes that in field tests resolution looks about the same, although "an experienced photographer" may notice that Zeiss has slightly higher resolution. Studio tests support that conclusion, but additional mathematical analysis suggests that Pentax could exceed Zeiss if it was used with a sensor with higher resolution.
8. of all tested lenses the closest competitor is Sigma art, but it is soft at the edges. Pentax performs better at the edges.
9. At the end of this discussion he talks about Star tracer... He must really like that function (he does say that only Pentax has it and if you were to use a different camera you'd have to use a wide angle lens and a high ISO).
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Forum: Pentax K-1 & K-1 II
10-31-2018, 09:57 AM
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Forum: Pentax K-1 & K-1 II
10-31-2018, 07:58 AM
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Not really clear why Zeiss has a higher resolution (point 4) when Pentax has higher resolution under point 2... Planning to read the review, but one thing you should know about this photographer is that if I were to characterize him in any way, is that he is a Zeiss fan. Nothing wrong with that, maybe just makes his conclusion all the more impressive.
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