LensTip.com

Lens review

Olympus Zuiko Digital 150 mm f/2

7 August 2009
Arkadiusz Olech

4. Image resolution

The image resolution of the tested lens has been measured on the strength of RAW files from Olympus E-3. The measuring errors oscillated between 1.5 lpmm in the maximum aperture range and 0.2 lpmm at f/22.

Olympus Zuiko Digital 150 mm f/2 - Image resolution

What’s there to write? Looking at the graph above brings to mind one word – fabulous! This lens recorded the highest MTFs of all the tested by us, almost 150, lenses. The fact that Olympus E-3’s dense sensor helps do it doesn’t change our assessment. Even if we take into account only the lenses tested on 10-megapixel Olympus’ sensors, ZD 2/150 still comes out the best, giving MTFs higher than praised lenses like ZD 2/50 or Leica 1.4/25.


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As we rarely see results so good, let’s enthuse about it for a longer moment. It’s worth to emphasize that such a bright lens at its maximum aperture reaches the result of almost 50 lpmm and, what’s more, it’s just under 3% worse than its maximum results. As if that weren’t enough! When we look at the edge performance we see that the lens comes off well there too. It’s proven by a small difference of MTF values between the center and the edge of the frame and also excellent behavior at maximum aperture. As regard resolution, then, Olympus ZD 2/150 has absolutely no weak points.


Olympus Zuiko Digital 150 mm f/2 - Image resolution