PLM vs DC vs SDM?

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MarBa Regular Member • Posts: 495
PLM vs DC vs SDM?

Could anyone explain pros and cons of these motors in Pentax lenses? I have seen few notes in various threads but maybe it would be interesting for many of us to know what makes each of these systems unique.

Which to get for fast AF? Which is most reliable, precise or durable? Or is the lens design playing the biggest role?

Thank you!

Best,

Marek

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