Changing aperture with DOF preview enabled

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Fellow Pentax 67 users,

When doing closed-down metering with extension tubes I find that I'm paranoid about changing the aperture of the lens with the Depth of field preview enabled.

My question is: does changing the aperture of the lens with the depth-of-field preview enabled damage the lens in any way? Or is my reluctance just another in a long list of irrational fears?

Thanks,

Bill Hahn

-- Bill Hahn (bhahn@world.std.com), April 24, 2002

Answers

Hi Bill,

There is no technical reason why this would damage the lens in any way!

Do not worry too much about technical stuff it is designed to be a tool for photography! and not the otherway around

Kind regards Gert Jan

-- Gert Jan Bollen (Gert.Jan.Bollen@philips.com), April 25, 2002.


Bill, I've done this many, many times with every lens I use both on and off the camera. It has been completely safe.

Bob

-- Bobby Mahaffey (mahajen@prodigy.net), April 25, 2002.


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