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Mamiya 150 soft focus question


Rick Helmke

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  • 1 month later...
On 12/3/2022 at 8:37 PM, arthur_gottschalk said:

The lens itself has a built-in spherical aberration that creates the soft focus effect up to F8. 

What is wrong in talking about a the same lens in a topic started some years earlier?

Would be nice if the thread would not have been fucked up by the genius move of reorganising photo.net.

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On 12/3/2022 at 6:37 PM, arthur_gottschalk said:

The lens itself has a built-in spherical aberration that creates the soft focus effect up to F8. 

Yes, and that spherical aberration is aperture-dependent. I.E. it resides in the peripheral part of the lens. Therefore attenuating the peripheral rays by any means will cut the spherical aberration and reduce the soft focus along with it. 

That's how the soft-focus control 'colander' disks work. 

I thought all that had been beaten to death in 2014.

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