Following
https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/227944-my-thou...ut-pieces.html I finally got the time to take a walk with my new lens. I went to the Botanic Garden but I got there just in time for sunset, which I couldn´t see because the garden is surrounded by buildings.
I took some legacy primes with f/2.8 maximum aperture to compare how the DA16-50 does wide open.
M35/2.8 F28/2.8 A24/2.8
Notice all the lenses share a similar MFD.
"Test" specifics:
Every lens was shot wide open, maintaining position while changing lenses. Each pair of photos were taken within a minute of each other and exact same ISO and shutter speed. SR was on. Used hoods on all 4 lenses.
All pictures were developed with Lightroom 4.4 using "Adobe Standard" profile. Only adjusted white balance ad tint (same values for each pair). No sharpening, saturation, clarity. Nada.
So, which is which? Probably not the best samples for this but well, a caballo regalado no se le miran los dientes (You don’t look a gift horse in the mouth).
DA16-50 vs M35/2.8 A. B. DA16-50 vs F28 A. B. DA16-50 vs A24 A. B. My findings comparing the field samples:
All the primes have better CA, purple/green fringe control
All the primes have better edge resolution
When transporting a lens, I rather primes. When using them, I find more stability with the heavier lens (specially at low shutter speeds).
DA16-50 has better flare control and saturation.
Conclusion:
I would like the DA16-50 to have less CA, purple/green fringe. This is the one big drawback of this zoom I think.
I confess I´d also like better corner performance.. But honestly, my f/2.8 applications doesn´t require "edge to edge sharpness". If I do, f/4 should take care of it.
The more I look at the sample photos, the more surprised I am about the DA16-50. It really stands out. After all, it´s an APS-C
zoom vs FF
primes (using only the center, aka "sweet spot").
So, from my previous post, I found out the DA18-55WR was getting more use than my primes out of necessity / convinience / weather conditions.
Does the DA16-50 replaces the primes? sure not. Does it comes pretty close, considering the intended use? surely does.