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Is Canon EF-S 18-135 STM lens too soft in large apertures?

Started Feb 28, 2013 | Questions thread
OP massud New Member • Posts: 6
Re: Is Canon EF-S 18-135 STM lens too soft in large apertures?

maarensv wrote:

photonius wrote:

the 135mm is almost sharper than the 50mm, should be the other way round.

I presume you did live-view focusing with 10x.

It does look like your lens is softer than expect from e.g. photozone tests

http://www.photozone.de/canon-eos/776-canon_18135_3556stmis?start=1

i.e. at 18mm in the center, it should already be quite sharp.

From my (short) experience I think both wide and tele should have been sharp in the centre wide open. Photozones test corresponds with that. It looks to me that your 18-135 STM is under par.

Regards, Sandor.

Thanks. What a disappointment. Can this be a lens calibration issue?

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