Originally posted by pschlute I read those review too, but I find ePHOTOzine give very good score to all the lenses... For example, there are many lenses with 4.5 stars with crappy IQ in the samples. Moreover result is often very different in the field than on the review bench.
In regards to the gap between 16 and 28, it doesn't matter as long as the IQ is great. At the moment, I have a big gap between my 11-18 and the 50/1.8... and I am looking for a zoom, or a prime between 18 and 50 with excellent edge performances.
---------- Post added 15-05-19 at 16:51 ----------
Originally posted by Kozlok Can you show us an example? The 16-85 has decent edge performance for a zoom. As always, edges get better stopped down. Are you certain what you are seeing is poor edges and not just OOF rendering?
In a zoom, a good bet for edge performance is the Sigma 17-50 with a 50-135 on the long end.
If you want really great edge performance, you’ll may want to consider a premium prime. The da35 Ltd and FA31 stopped down have quite good edges. The 50 macro and 100 macro have amazing edges. The new 11-18 appears to have pretty good edges too, especially for a zoom but I haven’t used it yet. There are others.
Use a tripod, stop down to f8 at iso100 helps quite a lot too.
I will look for an example when I get home.
I tested many lenses to fill my gap between 18 and 50mm, and I look for a lens with similar performance than my current lenses (11-18, 50/1.8 and 70mm Ltd).
I tested: 20-40 Ltd (2 copies), 35/2.4 (bad copy maybe?), 16-85mm, sigma 17-70 (decentered), sigma 18-35 (3 copies), 40 Ltd, 35 Macro Ltd, Tamron 17-50. The lens with better performance was the Sigma 18-35 (really stellar), but all of the 3 copies I tried had a different problem...
I also tested prime such as 40 Ltd and 35 Ltd. Those lenses were good in daylight, but for night cityscapes, the focus accuracy was very poor and most of my photos were out of focus (even in LiveView).
Samples of the 28-105 looks good on ephotozine.com, but I am a little tired to purchase and send back lenses...
---------- Post added 15-05-19 at 16:52 ----------
Originally posted by Pentax Syntax I have both lenses and a K-3. Of the two, I consider the 16-85 the better lens. Of course I use the 28-105 on my K-1ii predominantly since it covers FF. There is some sample variation with lenses and the one 16-85 you tried may have been flawed. I wouldn’t find the 28-105 that useful on a crop sensor body for reasons mentioned above. Edge performance at wide angle is always problematic but the 16-85 is very good. The only thing I don’t like about the 16-85 is that I use my DA limited primes (15,21,40,70) less after buying the zoom :-(.
Sure, may be I had a bad copy, I tried only one copy and I would not have ranked my copy 4 or 4.5 stars.
---------- Post added 15-05-19 at 16:53 ----------
Originally posted by Sandy Hancock The DFA28-105 is stellar on crop. I use it on the KP at least as much as I do on the K-1.
That said, it sucks at 16mm. But it kills the 16-85 at 105mm
Thanks and lol. Any chance you got landscape samples around 28mm and 35mm f/8 with your 28-105?
---------- Post added 15-05-19 at 16:57 ----------
Originally posted by Sandy Hancock The DFA28-105 is stellar on crop. I use it on the KP at least as much as I do on the K-1.
That said, it sucks at 16mm. But it kills the 16-85 at 105mm
I will upload few samples when I got home, and ask here if the IQ is normal or not. May be I am asking to much for a 600€ lens.