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S2, why "2"


jackart

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  • 3 weeks later...
  • 2 months later...
It would have to be: a 35mm negative is 36mm wide so any lens that can cover that in width can cover it in height - that's a Summicron R in the foreground.

 

That's not the case.

 

Imagine a circle just clipping the four corners of a 36x24mm rectangle. Then extend the rectangle vertically to a 36x36mm square. There will be sections of the square that lie outside of the circle.

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My brain hurts. You're right. The small image circle can cover a height of 36mm or a width of 36mm but not both at the same time. Doh!

 

The diameter of a circle required to cover the smaller, rectangular sensor is 43.27mm whereas for the larger, square sensor it is 50.91mm. I think.

 

Now my head hurts too.

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My local dealer has an S1 - refuses to sell it as he is a semi-collector.

 

It has the R lens adapter as well as the Hassy adapter. We put a 24mm Elmarit-R on it, and the lens image circle fully covered the viewfinder's groundglass. Pretty darn wide - minimal falloff.

 

(But never let real-world facts get in the way of armchair theory.... ;) )

 

Why M3? - "M(esssucher) 3" = "Rangefinder with 3 framelines" (50/90/135)

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  • 3 months later...
My local dealer has an S1 - refuses to sell it as he is a semi-collector.

 

It has the R lens adapter as well as the Hassy adapter. We put a 24mm Elmarit-R on it, and the lens image circle fully covered the viewfinder's groundglass. Pretty darn wide - minimal falloff.

 

(But never let real-world facts get in the way of armchair theory.... ;) )

 

Why M3? - "M(esssucher) 3" = "Rangefinder with 3 framelines" (50/90/135)

 

Yes rigth, but it didn`t follow, M2 was named for other reason followed by a M1, and then the M4 as a perfection over M3, and M5 well trying to fix what was perfect has allways been dificult

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