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Re: [OM] Odd Lenses - for Chuck & Chris.

Subject: Re: [OM] Odd Lenses - for Chuck & Chris.
From: David Young <dsy@xxxxxxxxxxxxxxx>
Date: Tue, 17 Jul 2012 20:26:37 -0700
Chuck noted:

> Macro magnification ratio refers to the actual size of the image on film
> or sensor.  If the 200mm lens makes a 1:2 image on film it also makes a
> 1:2 image on the 4/3 sensor.  If you were shooting an object that was
> 10mm high it would be 5mm high at 1:2.  But whether 35mm film or 4/3
> sensor the image would be 5mm high in both cases.  How much more you
> magnify it in post-processing is a different question.

You learn something new, every day, even if you didn't want to!  I was making 
an obviously erroneous assumption.

Thanks for the clarification.

David.

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