 Posted: Wed Jun 20, 2012 10:22 pm Post subject: |
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SXR_Mark wrote:
| Ghost2501 wrote: |
| My copy is rather soft @f1.4 but gets better @f2.0 |
My copy shows the exact same behaviour. It has a lot of "glow" wide open which exacerbates the softness. At f2, the glow is gone, and the sharpness is good. But there is still an improvement in sharpness at f2.8.
First set taken with OM-D E-M5
#1 @ f1.4
#2 @ f2
#3 @ f2.8
Second set taken with EPL-1
#4 @ f1.4
#5 @ f2
#6 @ f2.8
| Ghost2501 wrote: |
Can fungus be responsible for softness wide open ?
I hesitate to dismount it for cleaning (7 elements in 6 groups). |
The fungus will cause more scattered light and thus it could decrease the contrast. In that sense, it could reduce the sharpness. This lens is quite simple to take apart, but if the fungus is not bad I wouldn't bother unless you have some experience in cleaning lenses and the correct tools. If the fungus is bad, then the coatings are probably damaged anyway so you may not gain much.
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Olympus OM-D E-M1 for everything |
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