Olympus M.Zuiko Digital 300 mm f/4.0 ED IS PRO
8. Vignetting
| Olympus E-PL1, 300 mm, f/4.0 | Olympus E-PL1, 300 mm, f/5.6 |
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I must be honest: I haven’t seen such low results for quite a long time. Already at the maximum relative aperture the vignetting level is very low, reaching just 10% (−0.30 EV). On stopping down the aperture by 1EV stop it disappears almost completely getting to precisely 1% (−0.03 EV).
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When you progress to RAW files, with a bit larger angle of view, the vignetting increases by 1-2% but still it shouldn’t bother you at all.
It’s difficult to imagine but after attaching the tele-converter the situation is even better!
| Olympus E-PL1, 420 mm (TC), f/5.6 | Olympus E-PL1, 420 mm (TC), f/8.0 |
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At the maximum relative aperture the vignetting amounts to just 5% (−0.16 EV), and on stopping down to f/8.0 it decreases below 1% (−0.015 EV). I really can’t remember the last time I saw such brilliant results in this category; mind you so far I’ve tested close to four hundred lenses!
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