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Leitz 90CM f/4 Elmar LTM Lens Filter

Leitzfan

By Leitzfan
in Leica Collectors & Historica

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Leitzfan

Leitzfan

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Hi LTM Aficionados,

 

Just want to let you know that, if you’re looking for a UVa filter for your tiny Leitz 90CM f/4 Elmar LTM lens—it takes a 34mm screw-in filter just fine!  It took me a while to figure this out.  Just wanted to save you some time.

 

Cheers!

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Leitzfan

Leitzfan

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LOL--correction--*9*cm is what I meant to say. 😄  And I can assure you, at 3.25"L x 1.75"dia. (at fattest part, focusing ring) & 12 oz., this rigid (ILNOO) lens, tho a borderline telephoto, is physically *small*--the tiniest camera lens I've ever held, except for my collapsible 50mm f2.8 Elmar LTM (ELMOO).  And it most definitely accepts a *34*mm filter, I'm happy to have found.

Edited by Leitzfan
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a.noctilux

a.noctilux

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@Leitzfan

This is cm over mm thing.

9cm is not 90cm.

This "3 element" 9cm one takes E39mm filters.

from Wiki

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These 9cm or 90mm lenses can indeed use A36 filter and E34 as you said

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Leitzfan

Leitzfan

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Momentary "mm/cm" absentmindedness aside...

All I know is that I tried an "A36" filter on my lens...& it didn't fit (too big); had to return it--& yes, all the books say "A36."  But, unless "A36" = 34mm, it *doesn't* fit my lens.  A simple 34mm UVa filter, on the other hand, does, perfectly (tho I wish I could find one in silver--I'm happy to have found one at all)...hence my post.

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Edited by Leitzfan
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a.noctilux

a.noctilux

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I use SOOGZ = E39 filter for A36 lenses

note for myself, on Summaron 3.5/3.5cm/Elmar 5cm no filter thread for E34

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Leitzfan

Leitzfan

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15 minutes ago, a.noctilux said:

I use SOOGZ = E39 filter for A36 lenses

note for myself, on Summaron 3.5/3.5cm/Elmar 5cm no filter thread for E34

Welcome, dear visitor! As registered member you'd see an image here…

Simply register for free here – We are always happy to welcome new members!

BTW, did you know you can buy a 6-bit coded LTM-M adapter for your Summaron, for fairly cheap ($20/ea.)--which would allow your M to instantly "read" it?

I bought some for my LTM lenses, colored (filled in) the blank pre-set 6-bit divots w/ some flat black & white paint on the tip of an extended paper clip--& voilà--all my LTM lenses are now 6-bit coded M-mounts! 😄

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Leitzfan

Leitzfan

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22 minutes ago, a.noctilux said:

I use SOOGZ = E39 filter for A36 lenses

note for myself, on Summaron 3.5/3.5cm/Elmar 5cm no filter thread for E34

Welcome, dear visitor! As registered member you'd see an image here…

Simply register for free here – We are always happy to welcome new members!

"No filter thread," for your Elmar 50, b/c a filter there would prevent one from accessing the aperture ring.  Forgive me for stating the obvious...

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Anbaric

Anbaric

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43 minutes ago, Leitzfan said:

Momentary "mm/cm" absentmindedness aside...

All I know is that I tried an "A36" filter on my lens...& it didn't fit (too big); had to return it--& yes, all the books say "A36."  But, unless "A36" = 34mm, it *doesn't* fit my lens.  A simple 34mm UVa filter, on the other hand, does, perfectly (tho I wish I could find one in silver--I'm happy to have found one at all)...hence my post.

A36 is a push-on/clamp-on filter, for lenses with an outer diameter of 36mm. There are several Leica lenses that are compatible with both E34 screw-in and A36 push-on filters. Did you try a push-on or screw-in 36mm filter? Was it third party or Leitz? Many of Leitz's A36 filters have a small thumbscrew on the side to adjust the tightness of the clamp, as does the SOOGZ adapter than converts A36 clamp-on to an E39 screw-in mount, and hoods like the FIKUS.

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UliWer

UliWer

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Here are two versions (very early pre-war and postwar) of the 1:4/9cm Elmar with A36 filters (with their original dust...):

Welcome, dear visitor! As registered member you'd see an image here…

Simply register for free here – We are always happy to welcome new members!

The "A" in A36 stands for German "Aufsteckfilter" ("push-on" filter), "E" in E39 stands for "Einschraubfilter" ("screw-in" filter). As Anbaric explained the A36-filters were the almost universal filters for Leica screw-mount lenses from 28 to 135mm. Only the Summitar, the 7.3cm Hektor, the Summarex, the Thambar and the Super-Angulon needed larger sized E-filters.  On other lenses which usually had the A36-filters also E34 filters could be used: like 5cm Summar  and 9cm Elmar. As far as I know Leitz never offered E34 filters, so they always were and still are rather rare. The 7.3cm Hektor was the first Leica lens which took E 39 filters. 

With the introduction of the M Leitz abandoned the A36-filters and made E39 the new - though not universal - standard. So they even changed the lenses in order they could use the new E 39 filters: most famously 5cm Elmar for the M, but also 1:3.5/3.5cm Summaron , 13.5cm Hektor  and last but not least the 9cm Elmar (both in M and LTM mount). Versions of the 9cm Elmar with E39mm and M-mount start with approx. serial numbers 1,500,000 (I don't know the exact serial number of the first 9cm Elmar with E39, the LTM version with E 39 came even later with the IIIg).

JCBraconi shows an LTM version of the 9cm Elmar (or is it already 90mm?) on his homepage:  https://leicahistorica.com. Click on "IIIg" and look at the second photo: the second row from top show the 9cm (or 90mm?) Elmar with E39 on the left, the second from left is the 3-elements 90mm Elmar with LTM.

Most reference books or websites about the Leica lenses say that optics of the 9cm Elmar with four elements remained the same from the beginning to the end, and only coating was introduced after the war. This is not right: the optical design of the lens was improved with the introduction of the collapsible version and the the rigid E39 version during the 50s. You can see the differences in contrast and resolution if you compare a  collapsible with an earlier  (coated) A36 version: it is not a big difference but it's obvious. It is said that the "intermediate" version which had A36 but a broader rim at the front already had this improved optics, but I don't know if this is true.

Edited by UliWer
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willeica

willeica

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Some of my Leica filters. The yellow filter on the 9 cm Elmar is not marked as regards size, but it seems to be about 34mm.

 

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I have more, but I don't use any of them. These are just collectors' pieces for me. Putting another piece of glass in front of a lens has to have a very distinct benefit/purpose before I would use one.  I used UV filters back in the 1980s, but not today, for either film or digital. 

William 

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sandro

sandro

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Both my 1937 and 1952 versions of the Elmar 9 cm accept the A36 size filter with the screw to secure it in its position.

E34 filters were indeed delivered by Leitz for the 6.3/2.8 cm Hektor, the 2/5 cm Summar, the 4/9 cm Elmar and the black rim 4.5/13.5 cm Hektor: yellow 0 (FIMOO), yellow 1 (FIOOC), yellow 2 (FAVOO), yellow 3 by Leitz NY (FAZOY followed by QBOOE), green (FBXOO), UV (FBOOK) and infrared Rh (FNOOY), infrared Rm (FCOOI), infrared Rd (FNUOO) and orange (FQOOV).

Lex

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Leitzfan

Leitzfan

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On 11/9/2024 at 5:30 AM, Anbaric said:

A36 is a push-on/clamp-on filter, for lenses with an outer diameter of 36mm. There are several Leica lenses that are compatible with both E34 screw-in and A36 push-on filters. Did you try a push-on or screw-in 36mm filter? Was it third party or Leitz? Many of Leitz's A36 filters have a small thumbscrew on the side to adjust the tightness of the clamp, as does the SOOGZ adapter than converts A36 clamp-on to an E39 screw-in mount, and hoods like the FIKUS.

Yes, the one I found was 3rd party.  I wanted to avoid that "clamp-on" look and was searching (far & wide) for a screw-in filter, exclusively.  I wanted a more streamlined/screw-in/flush look.

Yes, I was aware of plentiful OEM vintage & modern clamp-ons.  Just not what I was seeking.

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Leitzfan

Leitzfan

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On 11/9/2024 at 6:49 AM, UliWer said:

Here are two versions (very early pre-war and postwar) of the 1:4/9cm Elmar with A36 filters (with their original dust...):

Welcome, dear visitor! As registered member you'd see an image here…

Simply register for free here – We are always happy to welcome new members!

The "A" in A36 stands for German "Aufsteckfilter" ("push-on" filter), "E" in E39 stands for "Einschraubfilter" ("screw-in" filter). As Anbaric explained the A36-filters were the almost universal filters for Leica screw-mount lenses from 28 to 135mm. Only the Summitar, the 7.3cm Hektor, the Summarex, the Thambar and the Super-Angulon needed larger sized E-filters.  On other lenses which usually had the A36-filters also E34 filters could be used: like 5cm Summar  and 9cm Elmar. As far as I know Leitz never offered E34 filters, so they always were and still are rather rare. The 7.3cm Hektor was the first Leica lens which took E 39 filters. 

With the introduction of the M Leitz abandoned the A36-filters and made E39 the new - though not universal - standard. So they even changed the lenses in order they could use the new E 39 filters: most famously 5cm Elmar for the M, but also 1:3.5/3.5cm Summaron , 13.5cm Hektor  and last but not least the 9cm Elmar (both in M and LTM mount). Versions of the 9cm Elmar with E39mm and M-mount start with approx. serial numbers 1,500,000 (I don't know the exact serial number of the first 9cm Elmar with E39, the LTM version with E 39 came even later with the IIIg).

JCBraconi shows an LTM version of the 9cm Elmar (or is it already 90mm?) on his homepage:  https://leicahistorica.com. Click on "IIIg" and look at the second photo: the second row from top show the 9cm (or 90mm?) Elmar with E39 on the left, the second from left is the 3-elements 90mm Elmar with LTM.

Most reference books or websites about the Leica lenses say that optics of the 9cm Elmar with four elements remained the same from the beginning to the end, and only coating was introduced after the war. This is not right: the optical design of the lens was improved with the introduction of the collapsible version and the the rigid E39 version during the 50s. You can see the differences in contrast and resolution if you compare a  collapsible with an earlier  (coated) A36 version: it is not a big difference but it's obvious. It is said that the "intermediate" version which had A36 but a broader rim at the front already had this improved optics, but I don't know if this is true.

Ah yes; I should've mentioned that at the beginning.  Yes, I was aware of the plentiful OEM vintage & non-OEM modern clamp-on filters.  But, I wanted to avoid that "clamp-on" look and was searching (far & wide) for a screw-in filter, exclusively.  I wanted a more streamlined/screw-in/flush look.

The clamp-ons on your two lenses *are* beautiful, without a doubt.  There's definitely something to be said for period OEM appendages, like yours--they definitely look like they "belong."  Just not what I was seeking.

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Leitzfan

Leitzfan

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On 11/11/2024 at 7:06 AM, willeica said:

Some of my Leica filters. The yellow filter on the 9 cm Elmar is not marked as regards size, but it seems to be about 34mm.

 

Welcome, dear visitor! As registered member you'd see an image here…

Simply register for free here – We are always happy to welcome new members!

I have more, but I don't use any of them. These are just collectors' pieces for me. Putting another piece of glass in front of a lens has to have a very distinct benefit/purpose before I would use one.  I used UV filters back in the 1980s, but not today, for either film or digital. 

William 

The only reason I use them (UV) is the age-old one--*protection*.  Though I treat my lenses like a new-born baby, I'd rather have my (cheap) "sacrificial" flat glass (filters) take the foreign object damage "hit" than my precious curved glass lenses...  That's all.

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Leitzfan

Leitzfan

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On 11/11/2024 at 10:03 AM, sandro said:

Both my 1937 and 1952 versions of the Elmar 9 cm accept the A36 size filter with the screw to secure it in its position.

E34 filters were indeed delivered by Leitz for the 6.3/2.8 cm Hektor, the 2/5 cm Summar, the 4/9 cm Elmar and the black rim 4.5/13.5 cm Hektor: yellow 0 (FIMOO), yellow 1 (FIOOC), yellow 2 (FAVOO), yellow 3 by Leitz NY (FAZOY followed by QBOOE), green (FBXOO), UV (FBOOK) and infrared Rh (FNOOY), infrared Rm (FCOOI), infrared Rd (FNUOO) and orange (FQOOV).

Lex

Yes--& I did see these colored E34 filters out there & fairly easy to get--just couldn't, for the life of me, find a clear (UV) one...

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