The DFA 100mm macro WR came as a free bonus when I purchased my K1ii with the kit lens 28-105. For many years I own the M100/4 macro and M100/2.8 and I was curious these could hold position against the newest glass. The weather was OK for some shooting, a bit blurry sun produced lots of light without harsh shadows. I took some pictures from 3 meters and some macroshots nearby at 1:2 magnification (closest possible M100/4). White balance put on "daylight", 400 ISO and manual focussing.
My test scene this time:
Focussing point were the two fruits on the statue.
Center sharpness at F5.6:
All primes perform rather equally, kit lens is a little bit softer.
Same shot (F5.6), right border at 200% with higher contrasts:
The DFA 2.8 and M 2.8 show the best sharpness, the M 2.8 frings a little bit more, but nothing to worry about.
Th M macro shows some softness at the border, the kit lens is clean but less sharp.
Same shot, right upper corner at F5.6 200%:
The M100/2.8 wins here, followed by the DFA2.8, the M100/4 and the kit lens wich is the softest also here.
The two brightest lenses wide open compared:
Amazing how good the 40+ years old M lens holds up to the DFA for center sharpness. The M is a tad softer and shows a little more glowing. These are 200% crops (!).
Same shot (wide open) a little bit off-center in harsh area:
Here the M lens shows its characteristic purple fringing like most lenses of the M-era do wide open. Sharpness still is very good.
And finally some macro-shots as close as possible for the M100/4 lens (1:2):
Both lenses perform for center sharpness very similar. Visible in OOF-highlights are the rounded blades of the DFA and the hexadiagonals of the M.
Even expanded at 200% there is very little between the modern DFA and the old M100/4. The design of this M lens goes back to the M42 Takumar era 50 years ago or so.
My lens does not suffer haze or separation, it still has very clean glass in it.
Summarized:
- All three primes are very good, and outperform the DFA 28-100 kit lens.
- With both macro lenses you can shoot stellar macroshots. There is very little in between them.
- I did not check things like curvature etc.. But I used both macro lenses for DSLR-scanning and the results were prestine on both.
- The M-lenses are a little less contrasty, I can see this in the diagrams. Easy correctable in post btw.
- The M100/2.8 always was a very nice companion of mine, als on film days I shoot wonderful pictures with it. Light, compact and decent sharp portrait lens.
- The two M-lenses perform very well on digital full frame.
Cheers!
Last edited by Henrico; 09-07-2019 at 03:14 AM.