How’s the M9 shutter different from M10

[setuporg]

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So I got my M9M, my first M9, and after M10, M10M, and M246 and Edition 60 the sound that cocking the shutter makes is new.  What is that wheezing after each shot?  Is it winding and staying cocked?

Edited June 20, 2020 by setuporg

[jaapv]

You're  getting older... Wheezing comes to all of us.

[darylgo]

I don’t know the answer to your question but many found it to be an annoyance. I rather found it comforting to hear my camera working. The M10-p shutter is the antithesis, my wife can’t hear it click three feet away, it’s quiet perfection.  And perhaps a little aging a la jaapv. 

[ianman]

4 hours ago, setuporg said:

So I got my M9M, my first M9, and after M10, M10M, and M246 and Edition 60 the sound that cocking the shutter makes is new.  What is that wheezing after each shot?  Is it winding and staying cocked?

Yes. The difference is due to the nature of the sensor. Your M9 has a CCD, all the others are CMOS based. There is a "discreet" mode which can be activated in the menu. This means the shutter will only re-cock when you release the shutter button.

[lct]

The M8 is even worse. Some people like its sound though. If the M9 is alike must come from the motor recocking the shutter.

[jankap]

Real Leicas use film. If you do not feed it well, it wheezes.

[setuporg]

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Yeah the sound is comforting, as if a film rewinding.  But how on Earth would CCD mean there’s a different sound?  I understand there’s a discreet mode, is it related to sensor activation?  But cocking the shutter would not be related to the kind of a sensor, would it?

[Jeff S]

The sound is the shutter recocking, same as with the M8.  Leica improved this with the M 240, and further with the M10.  I think this was unrelated to sensor type; just better design and engineering.  Live view does introduce a different shutter activation sequence, but that’s another story.

Jeff

[Adam Bonn]

7 hours ago, setuporg said:

Yeah the sound is comforting, as if a film rewinding.  But how on Earth would CCD mean there’s a different sound?  I understand there’s a discreet mode, is it related to sensor activation?  But cocking the shutter would not be related to the kind of a sensor, would it?

The noise is the shutter “winding back” to fire again, ie re-cocking the shutter 

The later Ms don’t do this. 

Discreet mode means that it won’t re-cock the shutter until you release the shutter button, thus avoiding the noise.. of course that means you can’t take a second shot until you’ve released the shutter button and re-cocked the shutter

[setuporg]

So how does the M240 and M10 series cock the shutter differently?  Do they cock it before the shot?  Does it stay cocked on the M9?  is there wear and tear (a spring staying loaded) associated with that?

[lct]

Their cocking motor is less noisy i guess. As to know why i have no idea.

[250swb]

On 6/20/2020 at 7:31 AM, setuporg said:

So I got my M9M, my first M9, and after M10, M10M, and M246 and Edition 60 the sound that cocking the shutter makes is new.  What is that wheezing after each shot?  Is it winding and staying cocked?

Given when the M9 shutter was designed (by Copal) it's no wonder it makes a different sound from the M10. One crucial difference is that the M10 shutter throws off far less oil onto the sensor than the M9/M9M did so that's what those grey blobs will be in the sky.

[helged]

6 minutes ago, 250swb said:

Given when the M9 shutter was designed (by Copal) it's no wonder it makes a different sound from the M10. One crucial difference is that the M10 shutter throws off far less oil onto the sensor than the M9/M9M did so that's what those grey blobs will be in the sky.

Yes, I have never experienced anything like the M9 shutter spitting of oil or whatever onto the sensor. Actually, it took a year or two of extended use to 'dry' up the shutter... (after which it possibly should have been oiled to stay young ).

[setuporg]

You guys are not helping in appreciating my low-actuation M9M!:)

[ianman]

9 minutes ago, setuporg said:

You guys are not helping in appreciating my low-actuation M9M!:)

Just forget about the shutter and enjoy the amazing output.

TBH this is the first I've heard of oil issues on the M9 in near 11 years of ownership... (I've had plenty on my TR3 though).

Edited June 22, 2020 by ianman