Panasonic Leica DG Elmarit 200 mm f/2.8 POWER O.I.S. review - Vignetting

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Panasonic Leica DG Elmarit 200 mm f/2.8 POWER O.I.S.

17 January 2018

Arkadiusz Olech

8. Vignetting

Let’s glance at thumbnails presented below in order to assess the vignetting performance of the tested lens; we measured it for JPEG files created with the help of the Olympus OM-D E-M5 Mark II.

Olympus E-M5 II, 200 mm, f/2.8	Olympus E-M5 II, 200 mm, f/4.0

The vignetting can be noticed only at the maximum relative aperture where it amounts to 20% (−0.66 EV). The problem disappears practically completely by f/4.0 and f/5.6 where it amounts to 11% (−0.35 EV) and 4% (−0.11 EV) respectively.

Now let’s check the situation you get after attaching the teleconverter to the lens; the results are shown in photos below.

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Olympus E-M5 II, 280 mm (TC), f/4.0	Olympus E-M5 II, 280 mm (TC), f/5.6

Here the results are even better. Already at the maximum relative aperture you might have serious problems with noticing any vignetting effect as its level reaches just 11% (−0.34 EV). On stopping down the lens to f/5.6 the vignetting level drops to a really symbolic value of 3% (−0.08 EV).

It’s worth adding that the following results were based on tests conducted by analyzing JPEG files; the results for RAW files are identical, with the maximum difference between those formats amounting to just 1%.

Olympus O-MD E-M5 II, JPEG, 200 mm, f/2.8