Olympus 12-40 closes and opens the aperture blades with camera power?

Started Mar 27, 2014 | Discussions thread
OP nikonshutterbug Junior Member • Posts: 43
Re: Olympus 12-40 closes and opens the aperture blades with camera power?

Thanks for the replies and confirms.  At least I know it's normal for 12-40.  Now I can get some sleep. :-).   I had this lens for months but never noticed before, until I cleaned the lens today.  I had numbers of m43 lenses from both Olym and Pana, NONE does this.

I don't understand the reason the 12-40 designed differently this way. To me, it just puts more wear and tear and sucks more juice from battery, unnecessary.

Beside this and the size of the lens is bigger than what I like it to be, this lens is stellar.  The more I use it, the more I like it.  Love it.  Color rendition, sharpness, focusing, etc... are super. I can't say enough good things about it.

 nikonshutterbug's gear list:nikonshutterbug's gear list
Olympus Tough TG-4 Olympus OM-D E-M5 Olympus PEN E-P5 Olympus E-M1 Panasonic Lumix G 20mm F1.7 ASPH +12 more
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