Filter size of various lenses

[01maciel]

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I'd like to complete my little database project in respect of lens filter sizes. There are a few lenses as shown in the table I haven't found any specific information about their filter sizes.  In case of 21mm f/1.4 ASPH Summilux-M I think there is no screw thread available, so the answer is probably n/a. BTW most of filter sizes starts with E (E60, E39...). What does the E stands for?

I wonder if someone can help me to complete the information. The size should be in mm.

ID	Lens_name	Filter_size
18	16mm-18mm-21mm f/4 ASPH Tri-Elmar-M	?
19	18mm f/3.8 ASPH Super-Elmar-M	?
17	21mm f/1.4 ASPH Summilux-M	?
25	24mm f/1.4 ASPH Summilux-M	Serie VII ?
41	35mm f/1.4 Summilux II	?
67	50mm f/1.2 Noctilux (1966 to 1975)	?
86	90mm f/4 Elmar	?
85	90mm f/4 Elmar III	?
82	135mm f/2.8 Elmarit-M I	?

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[John McMaster]

https://www.l-camera-forum.com/leica-wiki.en/index.php/M_Lenses_x_Focal_Length

john

[01maciel]

vor 11 Minuten schrieb John McMaster:

https://www.l-camera-forum.com/leica-wiki.en/index.php/M_Lenses_x_Focal_Length

thanks, this is my original source to get the information into an organized collection of data. But some information is missing unless I haven't overlook them-

Edited April 18, 2021 by 01maciel

[John McMaster]

I saw the answers to your questions there....

john

[a.noctilux]

line 67 - Noctilux 1.2/50 in Wiki "Filter type - Series 8"

line 82 (039 in Wiki) Elmarit 135mm I = "Filter type - Series VII - A63.7"

and so on  ...

 

[jaapv]

The Summilux 21 cannot use filters, nor the Super-Elmar 18. There are adapters, though, at a shocking Leica price. The E stands for a 0.75 mm thread pitch The TriElmar WATE first version had E49 slim.

[Danner]

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Question:  When Leica specifies a lens length, is that the overall length, or the extension from the mounting flange length?

[jaapv]

1 hour ago, Al Brown said:

The "E" is a Leica thingy, simply meaning Einschraub or screw-in in German.

Yes but it differentiates from the 0.50 pitch thread of for instance the Summicron C 40 ( which takes a series 5.5.5 on the hood) 

[jaapv]

1 hour ago, Al Brown said:

Only partially true. It cannot use SCREW filters out of the box/without an adapter.
@01maciel - the 21 lux uses Drop-in series VIII or 8 filters and the 24 lux uses Drop-in series VII or 7 (the roman and arabic numbers represent the same diameter) filters which can be put in out of the box. They fit into included sun hood which presses them against the lens rim (not the glass).

The 24 does indeed. According to literature the 21 front element is supposed to protrude. If not, I was misled. 

[Anbaric]

39mm filters have a 0.5 mm thread pitch, and are called E39, but 49mm filters have a 0.75 mm pitch and are called E49. In each of these cases there's a standard pitch for that diameter, which Leica and most other companies use.

I think B+W used to disinguish between different thread pitches when they made more than one for a given diameter by calling them 'E' and 'ES'. But those where only one pitch was made (most of them) were just 'E', regardless of whether the standard pitch for that diameter was 0.5 or 0.75. Confusingly, they now use 'E' to mean something else entirely - single coating rather than MRC multicoating.

Edited April 18, 2021 by Anbaric

[01af]

vor 2 Stunden schrieb jaapv:

The Summilux-M 21 mm Asph cannot use filters ...

Except it can. Its native filter size is Series VIII. As an alternative, there's an optional filter adapter which replaces the hood and takes E82 screw-in filters.

.

vor 2 Stunden schrieb jaapv:

The E stands for a 0.75 mm thread pitch.

No, it doesn't. Instead, it stands for 0.5 mm, 0.75 mm, or 1 mm pitch, depending on the diameter. For diameters from 43 to 82 mm, the standard pitch is 0.75 mm. Smaller diameters use 0.5 mm, wider diameters use 1 mm as standard pitch.

[Anbaric]

33 minutes ago, 01af said:

No, it doesn't. Instead, it stands for 0.5 mm, 0.75 mm, or 1 mm pitch, depending on the diameter. For diameters from 43 to 82 mm, the standard pitch is 0.75 mm. Smaller diameters use 0.5 mm, wider diameters use 1 mm as standard pitch.

I'm not sure 'E' explicitly specifies standard pitch in the case of Leica's own filters. In most cases, like E39 (0.5) and E49 (0.75), they do use the standard, but Leica E43 filters have a 0.5 pitch, whereas the standard seems to be 0.75. Unlike third party manufacturers, Leica don't have to make the distinction between standard and non-standard pitch if they only use one themselves. As above, in the Leica world 'E' probably just means 'screw-in' from the German word. It's up to us to figure out the pitch if we dare to use third party accessories not blessed by Wetzlar!

Edited April 18, 2021 by Anbaric

[01maciel]

Thanks a lot. I have learned so far that Series VII and VIII are a type of filter system holder thingy (?)

I updated the table, now it looks like this:

What does the red text mean (quoted from the URL from the second post)?

ID	Lens_name	Filter_size
18	16mm-18mm-21mm f/4 ASPH Tri-Elmar-M	Male thread, non-rotating and with stop for filter holder or lens hood / Screw-on type 12458 lens hood (included in delivery)
19	18mm f/3.8 ASPH Super-Elmar-M	Male thread, non-rotating and with stop for filter holder or lens hood / Screw-on type 12458 lens hood (included in delivery)
17	21mm f/1.4 ASPH Summilux-M	Series filter VIII in lens hood
25	24mm f/1.4 ASPH Summilux-M	Series filter VII / Separate, screw-on type
41	35mm f/1.4 Summilux II	n/a
67	50mm f/1.2 Noctilux (1966 to 1975)	Series 8
86	90mm f/4 Elmar	n/a
85	90mm f/4 Elmar III	n/a
82	135mm f/2.8 Elmarit-M I	Series VII - A63.7

[a.noctilux]

- line 41 ... Summilux 35mm "II", no thread in the lens front , I use hood 12504 for Serie VII filter inside ( possible to use some E49 filter also )

- line 86 ... if this Elmar 4/90 (in wiki)

• Leica Order No. - ILNOO 11 631 - 11 830 rigid, later 11 131 - 11 130 rigid LLC - 168
• Production era - 1954-1968 < 79,605 lenses

       I  have A36 filters for them

- line 85 ... if Elmar 4/90 (III) in Wiki

• Leica Order No. - ELANG 11 730 (S), ELANG-M 11 830 (M) LLC - 168
• Production era - 1964-1965 < 9,400 lenses with < 500 in screw-mount (per Westlicht)

  they use E39 filters