Which lenses provide manual aperture control?

are you talking 4/3 micro 4/3 specific or in general? do you also want auto capability too? obvious answer would be older manual lenses.
 
Any lens with manual aperture ring. The exception is some newer Nikons that lacks a aperture ring but still has a mechanical control lever that the body controls. Those can be used manually on GH1 with a adapter with a ring/plunger.

The major lenses not being able to be manually controlled on GH1 are those with Canon EF mount as those have a purely electronically controlled aperture. As yet nobody has made a m4/3 adapter with such electronics. (It's possible however since Red Rock Micro has added such a EF mount for their 35mm adapter but it requieres reverse engineering of Canon's protocol.)
 
thank you. what about the lumix 20m1.7? I dont think it has manual aperture ring.
 
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