Canon 17-55 impressions (vs 17-40)

Started Jun 17, 2006 | Discussions thread
Darin Genereux Regular Member • Posts: 272
Re: Flare issue easily corrected?

That's my guess also. The 17-40L is noted to have superior flare resistance, and I'm sure it's because there's relfective surfaces to bounce light from. It has the least number of groups among the Canon wide angle zooms. The expensive UD elements are used to prevent fringing effects but do little to resist flare. Without somehow reducing the number of elements/groups I don't think there's much more to be done.

Don_D wrote:

Isn't it more likely that the large number of lens groups in the
17-55 just made the problem more acute and more difficult to fix?

-Don

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