----- Original Message ----- 
From: "Mishka" 
Subject: Re: Macro Lenses


> incorrect. a 1:1 reproduction of an object 10mmx10mm is 10mmx10mm
> regardless whether it is on a sensor, a piece of film or a wall.
> 
> size of the format does not enter the equation.

Actually, what Godfrey is saying is correct.
You might want to try rereading his post.

William Robb



> On 3/15/07, Godfrey DiGiorgi <[EMAIL PROTECTED]> wrote:
>> So at 1:1 magnification, a Pentax DSLR will image a 16x24mm subject
>> area.
> ...
>> So at 1:1 magnification, a Pentax 35mm SLR will image a 24x36mm
>> subject area.
>>
>> etc
>>
>> The key thing is that the number of pixels or the density of the film
>> is irrelevant to magnification, which is what the example was
>> attempting to show.
>>



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