Is it SAFE to collapse lenses on the M10

[pedaes]

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On 1/10/2020 at 7:53 PM, Alberti said:

very convincing that the lens is made in the digital era

You can have older lenses 6-bit coded. As it happens I have just had my Elmar-M coded. Only makes sence if a lens is listed in the 'manual' lens menu though as I am not sure if it would record others (In the EXIF data) .

[Lisa Davidson]

On 2/4/2017 at 2:28 AM, TheGodParticle/Hari said:

Here we go again [emoji23]

 

I will upload a 90/4 (1955) collapsed on the M10 shortly

 

Any collapsible lens in particular that you consider risky?

 

There are after all only a few collapsible lenses:

 

Elmar 50/2.8

Elmar-M 50/2.8

Elmar 50/3.5

Elmar 90/4

 

Voigtlander 50mm

 

Have I missed any others?

There is the 50mm Summar, and probably a Summarit or two.  And there is a collapsible SOM Berthiot Flor lens in LTM.  It looks just like an Elmar.

[Stuart4RF]

Major reason for the 'collapsible' lens was to fit the inner end bayonet on the Leitz enlarger and also the BEOON Close up copy setup so you didn't have to purchase an enlarging lens or copy lens.

[Kwismexer]

Hi there, I was just wondering if the older Elmar F3.5 was safe to collapse into an M10? Or should I leave the barrel extended? I couldn't find a clear opinion on this topic and just want to be sure that I don't do any damage to the curtain or sensor. 

[jdlaing]

15 hours ago, Kwismexer said:

Hi there, I was just wondering if the older Elmar F3.5 was safe to collapse into an M10? Or should I leave the barrel extended? I couldn't find a clear opinion on this topic and just want to be sure that I don't do any damage to the curtain or sensor. 

 

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