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Like the M6 TTL the increased height is due to the TTL flash circuitry. There are additional electronics in the M7 for the shutter and the DX reader. Maybe a little more brass for the top plate and a bigger circuit board might account for weight difference.

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Same length (138 mm), same depth (38 mm) but the M7 is 2.5 mm taller and 25 grams heavier. Who would have thought a manufacturer, in this day, to have three film cameras, all about the same size and price, with the option from fully manual with no electronics at all, a model that adds a built in meter for convenience or a model with auto exposure and TTL flash?

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Hi All , with your discussions to a difference value of 2 mm, I went looking, to verify in Wiki LUF.It also interests me.

I found these numbers,compared with the book of Erwin Puts a minimal difference (difference of 2 mm).

I do not know the reason, perhaps not the same measurement method :)

 

Here's what I found:

 

Weight(g)/Length/Height/Depth (cms)

M2 (1957-1968) 580g - 138x77x 33.5

M3 (1954-1968) 580g - 138x77x33.5

M4 (1967-1975) 545g - 138x77x33.5

M4P(1981-1987) 545g - 138x77x38

M5(1971-1975) 645g - 150x87x36

M6(1984-2003) 600g - 138x79.5x38

M7(2002…) 610g - 138x79.5x 38

MP(2003…) 600g - 138x77x 38

MA(2014...) 578g - 138x77x38

 

First remarks:

M2,M3 and M4 has only 33,5 cms depth

M6, M7, MP turn around 600 g weight

The M5 is the heaviest, longest, highest, but narrower (36cms)

M2 and M3 heaviest than M4 and M4P (the 2 lightest of all) :)

M4P, M6,M7,MP and new M-A are the deepest (38cms)

 

The new MA is the lightest and is less heavy than MP

 

Best

Henry

Edited by Doc Henry
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I brought my M4 in to compare side by side to the MA and found them exactly the same. -- placing them next to each other and on top and bottom to bottom they measured exactly alike. So I am not sure who is doing these measurements and how.

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I brought my M4 in to compare side by side to the MA and found them exactly the same. -- placing them next to each other and on top and bottom to bottom they measured exactly alike. So I am not sure who is doing these measurements and how.

Steve,the M4P and MA has the same measure : 138x77x38 we agree :)

Henry

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The 33.5 must be mistaken with the pre-war generation IIIf and so on, the difference is almost half a cm. M3 and newer are all 38

And I thought the M5 was a bit thicker, but I don't know it from experience

The Wiki needs corrections

Edited by otto.f
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FWIW, the IIIf next to me measures 30 mm in body depth, according to my desk ruler and excluding protuberations like eyepiece, mount or speed dial. For the M5 I just checked, the ruler tells 33 mm, including the protuding window frame but nothing else. I do not recall my MP being any thicker than my M3 and I used to carry both in the same M4 case (sequentially though :rolleyes:)

 

Alexander

 

("Never believe a statistic that you did not falsify yourself". Author unknown.)

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Thanks, Doc Henry, protusions it should have been. Without those but including the window frames, my M3 is in the 33mm range of depth... So, yes, I would say the classic film bodies share this dimension - for all practical purposes... Of course, heights differ.

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