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04-29-2011, 01:55 AM   #1
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Aperture adjustment and k-x

Okay, so Im a bit confused. I picked up a pentax 50mm/1.4 lens and am trying to get it working on my camera. So, I have set the aperture ring setting to permitted, have the camera in M on the dial, and the manual on the focusing. All good, but if I turn the aperture ring, I cant see the blades move at all...all is good when not on the camera and the blades move perfectly when turning the rig, but when I put it on the camera the blades open to the 1.4 setting...

Is this what is meant to happen?

04-29-2011, 02:10 AM   #2
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QuoteOriginally posted by goldpopper Quote
Is this what is meant to happen?

You always "aim" at full aperture, whatever the lense you use.

When you shoot, blades will move to the aperture set.

You can set the "green button" (menu, number 4 on the right / "green button" / optical viewfinder (?)* ) then, when you put on "M mode", when you'll press the green button, it will stop down your lense from full aperture to what you choose.
If the viewfinder* get a bit darker, it's all good !

Note : when you'll press the green button, then blade will move to aperture you want, so DOF will be bigger, and the focusing easier, if there is enough light.

*i'm french (so i used a translator for this word, don't know if they are right ones )
04-29-2011, 02:34 AM   #3
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Aaah, get it now. Obviously have a fair bit to learn still . Got it working and viewed the blades close up , and have the optical preview sorted. Looks good. I am glad that I have a DA40mm as well, as focus is bit harder and takes longer manually. But should prove to be a great lens to play around with. Many thanks...

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