#1. "RE: Nikon Nikkor 50mm f2 Lens with D40" In response to Reply # 0 Fri 03-Jun-11 03:05 AM by aolander
Nevis, US
That's the way it is supposed to be. The aperture stays wide open, but closes down to the set aperture when the shutter is released. (Stop the lens down a bit, look into the lens, and release the shutter; you'll see the aperture close down.) You'll have to use manual exposure mode and check the histogram to get the exposure right, i.e. no metering with this lens.
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