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EV interlock button

M

MikeSeb

New Member
Apologies if this has been posted before. I searched "interlock" but didn't find anything pertinent.

I am shooting with the 203FE and was playing with the EV interlock button. As I understand it, this button, when pressed, should lock the aperture and shutter speed rings together so that they turn together to maintain a given EV.

On my camera this doesn't seem to work, with any of the three lenses I own. The 203 manual and Wildi's book don't say much about this. Is this a flaw with my camera body?

It's going to Haselblad for CLA anyway, so perhaps they can check it if it's a flaw.

Thanks all.

Michael Sebastian
 
The interlock button is functional with 2000 series cameras.

I do not think it works with 200 series bodies.


Vic.
 
The EV interlock on the F and FE lenses only works on the 2000 and 201f cameras. I do not know why.

Terry
 
Huh,
I cancel a deal with my FE 150 as there was no EV on the ring.
That was the Hasselblad logic.
Now I have to sell it on B for nothing (160430224467) !
 
Hi,

The interlock button and the EV scale on FE lenses is to provide backwards compatibility with the 2000 series of camera bodies as these models do not have integral metering. The F series lenses also have the same functionality.

The idea is that you use a separate meter or a meter prism and then transfer the EV reading to the scale on the apperture ring of the lens. You then engage the interlock button to enable the setting of the apperture and shutter speed settings whilst maintaining the measured EV reading.

The interlock button and the EV scale have no relevance on the 203FE, 205 and 202 camera bodies as these models have an integral meter that measures the light values through-the-lens (TTL) and so there is no need to transfer any external measured light values to the lens or camera.

Hasselblad were usually considerate in providing backwards compatibility with earlier camera models.

Regards

Kevin
 
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