Our initial endeavor involved the conceptualization, creation, and production of distinctive and optimal lens hoods intended for Nikon Rangefinder Camera Lenses, including those with Leica Thread Mount (LTM) versions.
The latter section comprises list of Nikkor Rangefinder S Mount / LTM lenses, and its filter diameter sizes, along with indications of the compatible OLJ' Original Lens Hood for each lens.
Type of Lens and Latin Alphabets
The array of lenses crafted for the Nikon rangefinder system is notably extensive. The frequent updates over time may have contributed to the proliferation of variations. Considering that the company commenced applying lens coatings as early as 1945, it's reasonable to assume that all Nikkor lenses manufactured for Nikon rangefinder cameras were coated from their inception. Consequently, among the early Nikkor lenses tailored for rangefinder cameras, you might come across instances where a red 'C' follows the initial letter, indicating "coated" (as exemplified by my Nikkor-N.C 5cm F1.1 lens pictured below). We hereby clarify the significant letter following "Nikkor".
A lens can be distinguished by examining the identification ring positioned at the lens's front. This ring displays crucial lens specifications, including "Nippon Kogaku," focal length, lens speed, and the term 'Nikkor,' succeeded by a pair of letters. The initial letter serves to classify the lens type, distinguishing between wide-angle and telephoto or signifying the quantity of lens elements through the Latin alphabet. This letter essentially encodes the count of lens elements incorporated within the optical arrangement. For instance, the Nikkor N.C in above photo indicated 9 elements with coating. Interestingly, this identification convention endured for numerous Nikkor lenses designed primarily for Nikon reflex single-lens reflex (SLR) cameras, and it persisted until the year 1974.
U (Uns) for 1 element
B (Bini) for 2 elements
T (Tres) for 3 elements
Q (Quatour) for 4 elements
P (Pente) for 5 elements
H (Hex) for 6 elements
S (Septem) for 7 elements
O (Octo) for 8 elements
N (Novem) for 9 elements
D (Decem) for 10 elements
Nikkor Lens Hood Compatibility
The OLJ hood system currently covers approximately 70% of the Nikon rangefinder lenses listed in our compatibility guide.
Nikkor Lenses with Leica Thread Mount (39mm Screw)
Wide-Angle Lenses
W-Nikkor 2.5cm F4 - filter thread - 34.5mm, OLJ Type 5
W-Nikkor-C 2.8cm F3.5 - filter thread - 34.5mm, OLJ Type 5
W-Nikkor 3.5cm F1.8 - filter thread - 43mm, OLJ Type 3
W-Nikkor 3.5cm F2.5 - filter thread - 34.5mm, OLJ Type 5
W-Nikkor-C 3.5cm F3.5 - filter thread - 34.5mm, OLJ Type 5
Normal Lenses
Nikkor-N.C 5cm F1.1 - filter thread - 62mm, OLJ Type 2
Nikkor-S.C 5cm F1.4 - filter thread - 43mm, OLJ Type 3
Nikkor-H.C 5cm F2 - filter thread - 40.5mm
Nikkor-Q.C 5cm F3.5 - filter thread - 34.5mm, OLJ Type 5
Nikkor 8.5cm F1.5 - filter thread - 58mm
Telephoto Lenses
Nikkor-P.C 8.5cm F2 - filter thread - 48mm, OLJ Type 1
Nikkor 10.5cm F2.5 - filter thread - 52mm
Nikkor-Q 13.5cm F3.5 - filter thread - 40.5mm
Vintage Nikkor Lenses with S-Mount
Leica Thread Mount (39mm Screw): 9 of 13 lenses covered — 69%
Vintage Nikkor Lenses with S-Mount
Wide-Angle Lenses
W-Nikkor 2.1cm F4 - filter thread - 43mm, OLJ Type 3
W-Nikkor 2.5cm F4 - two-pin mount, no filter thread
W-Nikkor 2.8cm F3.5 - filter thread - 43mm, OLJ Type 3
W-Nikkor 3.5cm F1.8 - filter thread - 43mm, OLJ Type 1
W-Nikkor 3.5cm F2.5 - filter thread - 43mm, OLJ Type 3
W-Nikkor 3.5cm F3.5 - filter thread - 43mm, OLJ Type 3
Normal Lenses
Nikkor 5cm F1.1 - filter thread - 62mm, OLJ Type 2
Nikkor 5cm F1.4 - filter thread - 43mm, OLJ Type 3
Nikkor 50mm F1.4 Olympic - filter thread - 43mm, OLJ Type 3
Nikkor 5cm F1.5 - filter thread - 40.5mm
Nikkor 5cm F2 - filter thread - 40.5mm
Nikkor 5cm F3.5 Micro - filter thread - 34.5mm, OLJ Type 5
Telephoto Lenses
Nikkor-S.C 8.5cm F1.5 - filter thread - 60mm
Nikkor-P.C 8.5cm F2 - filter thread - 48mm, OLJ Type 1
Nikkor-C 10.5cm F2.5 - filter thread - 52mm
Nikkor 10.5cm F4 - filter thread - 34.5mm, OLJ Type 5
Nikkor 13.5cm F3.5 - filter thread - 43mm, OLJ Type 3
Nikkor 13.5cm F4 - filter thread - 40.5mm
Vintage Nikkor S-Mount: 12 of 18 lenses covered — 67%
Modern Nikkors
W-Nikkor 3.5cm F1.8 2005 - filter thread - 43mm, OLJ Type 3
Nikkor 50mm F1.4 Millennium - filter thread - 43mm, OLJ Type 3
Modern Nikkors: 2 of 2 lenses covered — 100%
Overall OLJ Coverage: 23 of 33 lenses — approximately 70%
