13.5 Hektor f/4 Lens Hood (IUFOO) Issue

[SonomaBear]

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This might be simple, BUT I just received a 13.5/4 Hector and a IUFOO lens hood from different sources.

The lens hood will not attach -- it fits but the lens has nothing for the hood to grasp.  Any ideas?

Thanks folks...

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[pico]

Strange, but your lens is missing the groove that should run 3.4mm from the end of the lens.

(I just happened to have the same lens  on my bench at  the moment.)

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Edited September 3, 2019 by pico

[jdlaing]

Looks like the secondary ring with the groove is gone.

[SonomaBear]

Bizarre... The lens is excellent otherwise.  1st images into Lightroom were nice (for a 1956 Hektor).

I'm OK with it since my purpose for the 135 is portraits and street - not flare prone shooting...

 

Thank you for your help!!!!

[adan]

The Hektor lens was made from 1933-1960 (post-1950 in the chrome barrel). The IUFOO/12575 hood was introduced in 1955 (with arrival of the M mount).

I'm going to guess the lens head may be pre-1955 production, when the groove was neither needed nor anticipated.

Any of: very early (53-54) M production; screw-mount original lens converted (or adapted?) to M mount; screw-mount lens head swapped into M-mount barrel.

Never mind - you know it is 1956. Although the following may still reveal something. SM lenses were made right alongside M lenses until much later.

Checking the S/N on the lens head would reveal its date - checking the S/N (possibly truncated) scratched or penciled inside the lens barrel itself (with the head removed) may show a mis-match. Check the mount, also, to see if an M-adapter has been added (it is fairly common with, for example, 21 Super-Angulon f/4s, that SM lenses were factory-adapted for M use.)

Edited September 3, 2019 by adan

[luigi bertolotti]

Uhm… by sight, this looks to me an Hektor with the old-fashioned A36 front ring : this front size needed the  A36 clamp filters and the A36 FIKUS hood (extensible) : according to Lager, it was just in 1956 (from s/n 1.416.000 (*) ) that the front element was redesigned for E39 screw filters and the IUFOO lens hood.

The A36 was standard for many other prewar lenses (Elmar 3,5 5 and 9 cm, and some Others) so it was good to stndardize filters' set, and the hood too (FIKUS is adjustable for 3,5 5 9 13,5 cm)

So… no way that your IUFOO fits it : if you want to use the lens with hood, not a great issue : FIKUS are very easy to find and not costly, too. 

Quick and dirty cellphone picture to show the two versions, bad image quality, but the difference in size and shape (no groove for IUFOO)  is clear:

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Edited September 3, 2019 by luigi bertolotti

[luigi bertolotti]

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(*) E39 from 1.416.000 is according to Lager - reliable source -  but fact is that items in 1.3xx.xxx with E39 do exist (Lager even depicts one, though in bayonet Mount) : no strange if there is some overlapping… E39 was defined as the standard for the new generation of lenses accompanying the M3 intro (Summicron 50, firstly) so probably all Hektors in M Mount were E39... while many customers of SM Leicas had sets of A36 filters so Leitz did continuefor a while  to make Hektors A36 for this kind of users.   

 

Edited September 3, 2019 by luigi bertolotti