How did they make the 45mm 1.8 Olympus so small?

Started Feb 4, 2013 | Discussions thread
Chez Wimpy
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Re: How did they make the 45mm 1.8 Olympus so small?
In reply to schirmer, Feb 4, 2013

schirmer wrote:

Other question: Why is the slow Sigma 19mm so long and the fast Panasonic 20mm a pancake?

The 19mm is an APS-C covering WA design.  Kind of like the 14/2.5 scaled up, without any digital correction applied.  Thus the difference in size.

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-CW

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