Why does my GH2 (with an adapter and legacy lens) have aperture locked to '0.0'

Started Sep 12, 2013 | Questions
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olivepuns New Member • Posts: 2
Why does my GH2 (with an adapter and legacy lens) have aperture locked to '0.0'

Hello

I'm a bit new to camera-speak and just recently getting into the technical elements of my GH2. I've had a Nikon E Series 28 mm lens given to me as a gift (with a separate adapter to mount to my GH2) for the past year, and just recently noticed that the aperture doesn't actually seem to switch when I manually toggle between f-2.8 all the way to 22.

I've tried switching between A and M mode.

I have "shoot without lens' function on (because the camera disables altogether if I don't have the option 'on' and use this lens+adapter combo).

When I take photos, the aperture shows up at 0.0. I can't electronically control the aperture (which I understand is something you do manually with legacy lenses) but it doesn't seem to make a difference in my images. The pictures seem to be locked at f - 2.8

Is this an issue with my lens, adapter, or camera settings? Stressed. Any help is appreciated

ANSWER:
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aljudy Contributing Member • Posts: 809
Re: Why does my GH2 (with an adapter and legacy lens) have aperture locked to '0.0'

Lenses without electrical contacts, like old lenses, cannot tell the camera the aperture value and the GH2 inserts 0.0 for the aperture as default. There are programs that allow you to change this data. Search for editing EXIF information in files. If you use Lightroom, there is a pluggin that can even enter the lens information into the files as well as the aperture used, but you need to remember it. If i remember, I record a short video where I say what lens and what aperture was used...  Al

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PC Wheeler
PC Wheeler Forum Pro • Posts: 16,129
Re: Why does my GH2 (with an adapter and legacy lens) have aperture locked to '0.0'

Welcome to the Forum!

Very normal when using a lens which has no electrical connection to camera. Use A mode, set aperture mechanically on lens and you'll be fine.

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Phil

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olivepuns OP New Member • Posts: 2
Re: Why does my GH2 (with an adapter and legacy lens) have aperture locked to '0.0'

I figured it out! 
I'll leave this up for any other newbs like me. It turns out the "Lock/open" function on the adapter WASN'T to lock/open and release the lens from falling off.. it's to lock and open in order to change the F stop (that your camera will detect)

So for others that might be similarly challenged, switch to A mode (M might also work I think), OPEN your adapter, then manually move aperture ring and voila.

Case closed.

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