Olympus E-M1 Mk.II and MZD 12-100/4.0

Image Samples: Crofton Lake

Swapper
My other articles related to the Olympus OM-D System.

Back to E-M1 Mk.II Lens Fest, Part 1

12 mm | 25 mm | 50 mm | 100 mm

Update of July, 2018: While this version is based on the same, original set of in-camera JPEGs, two changes have been made in the presentation:
  • To make diffraction effects more obvious, I'm also showing samples shot at F/16 ad F/22 (previously not included).
  • For each focal length, I'm including a Swapper page, making it easy to catch even subtle differences between full-scren, 1:1 samples at various apertures.

F = 12 mm

The center is already very sharp at the full opening of F/4; maybe there is a very slight improvement going to F/5.6 or maybe not. The far corners, however, do suffer from some fuzziness (see branches at top-left), disappearing at F/5.6. This will not stop me from using this lens at full aperture.

At F/4, the lens shows vignetting in far corners; at F/5.6 it goes away, although full images still show some. I'm not worried about it: it took me a month to notice it at all.

The camera has an option named Shading Compensation, which takes care of the problem during the raw-to-RGB conversion. So far I had this turned off; maybe it is time to reconsider.

12 mm

F/4.0

F/5.6

F/8.0

F/11

F/16

F/22

Back to E-M1 Mk.II Lens Fest, Part 1

F = 25 mm

From F/4 to F/11, center and off, an exemplary performance, peaking somewhere near F/8.0.

No vignetting, even diffraction only starts stirring at F/11. Just beautiful.

25 mm

F/4.0

F/5.6

F/8.0

F/11

F/16

F/22

Back to E-M1 Mk.II Lens Fest, Part 1

F = 50 mm

While the differences over the range of F/4 to F/11 are really minor, the apertures of F/4 and F/8.0 seem to be better than the others.

Again, an impressive performance at this focal length.

50 mm

F/4.0

F/5.6

F/8.0

F/11

F/16

F/22

Back to E-M1 Mk.II Lens Fest, Part 1

F = 100 mm

For most wide-to-tele zooms the long end is where they do worst. Not this one. Again: best performance at F/5.6 and F/8.0, quite OK (read: "better than I will ever need"), even at F/11.

I'm having a problem with the F/16 sample: it is more blurry than the one at F/22 (not to mention F/11, as it should). My shooting procedure rules out focusing error, so I'm suspecting camera shake (even if it doesn't look like that). The third option, the camer switching the sharpening to a more aggressive setting beetween F/16 and F/22, although theoretically possible, seems very unlikely. Anyway, I have to disregard this sample; sorry.

100 mm

F/4.0

F/5.6

F/8.0

F/11

F/16

F/22

Back to E-M1 Mk.II Lens Fest, Part 1


My other articles related to the Olympus OM-D System.

This page is not sponsored or endorsed by Olympus (or anyone else) and presents solely the views of the author.

All brand names and trademarks are a property of some fat guy with a cigar and a bunch of lawyers.


Home: wrotniak.net | Search this site | Change font size

Photo News | The Gallery


Posted 2017/04/01; last updated 2018/07/23 Copyright © 2017 by J. Andrzej Wrotniak