Rittron / Noritar 80mm f/2
Norita Kogaku · Norita 66 · 1968 · Gauss type, 6e/4g
single source, unconfirmed our own findingAlso known as: Noritar 80mm f/2 · Noritar 80mm f2 · Noritar 80mm F2.0 · Noritar 80/2 · Noritar 2/80 · NORITAR 1:2 f=80mm · Norita 80mm f2 Noritar · Norita 80mm f/2 · Norita Noritar 80mm f2 · Norita Kogaku Noritar 80mm f/2 · Graflex Noritar 80mm f/2 · Graflex Norita 80mm f2 · Norita 66 80mm f2 · Rittron 80mm f/2 · Rittron 80mm f2 · RITTRON 1:2 f=80mm · MC Noritar 80mm f/2 · ノリタール 80mm F2 · ノリタール 80mm f2 · ノリタ 80mm F2 · ノリタ光学 ノリタール 80mm F2 · リトロン 80mm F2 · リットロン 80mm F2
Variants & identification
| Variant | Mount | Years | Serial ranges | Production |
|---|---|---|---|---|
| Rittron 80mm f/2 (1968, chrome, for the Rittreck 6×6) | Norita 66 (the Rittreck 6×6 breech-lock that the Norita kept) | 1968 | — | — |
| Noritar 80mm f/2 (1970–1976, black) | Norita 66 | 1970–1976 | — | — |
| MC Noritar 80mm f/2 (late, multicoated; one report) | Norita 66 | — | — | — |
- Construction, aperture range, closest focus, angle of view, filter, dimensions and weight are Norita's own (1972 catalogue table, Cat. No. 2004) and match Singer Graflex's brochure, form 11143/1070 (15.5 oz / 440 g, 62 mm × 76φ). The Revue Rittreck Six manual gives the Rittron the same 4 groups / 6 elements, f/2–22, 0.85 m and 62 mm, with a 53° angle of view against Norita's 54°. Kamerastore lists an example at 78 × 51 mm and 449 g.
- The six-blade diaphragm is from Kamerastore's listing alone; no maker document gives a blade count.
- Dates: the Rittron from the Rittreck 6×6's launch in March 1968 (Hayata Camera Lab). The Noritar by October 1970, from the Graflex brochure's form number (an inference: see original research), Norita's US Noritar trademark filing of 25 February 1970 (camera-wiki) and Norita's own manual, against camera-wiki's 'renamed Noritar in 1972'. The end with Norita's withdrawal from cameras in 1976 (Japanese Wikipedia, camera-wiki); Topcon Club instead gives 1977 as the last year the Norita 66 was sold. No end date for the Rittron and no dates at all for the MC version were found.
- Coating: Topcon Club calls the 80 multicoated and says the Rittron's coating is the same; pentaconsix.com's author says none of the Norita lenses was multicoated when he was looking at the system in the mid-to-late 1970s, his correspondent Selmar Meents calls the metal-ringed lenses 'the single coated version', and LensRetro calls the lens single-coated. The MC version rests on one report (pentaconsix.com, from a photograph). The single-source flag on this page is for that version and for the blade count.
- Price: the only lens-alone price found is ¥25,200 (¥23,000 tax-free) on an undated Norita Japanese price list sold with a ©1972 Japanese catalogue (Yahoo! Auctions lot), so 1972 is assumed for it. No lens-alone US or European price was found.
How to tell them apart
- Three engravings, one optical design (Topcon Club: Rittron and Noritar are identical 'from construction to coating'): chrome RITTRON (1968), black NORITAR with NORITA KOGAKU JAPAN (by 1970), and a reported late MC Noritar
- The Rittron and the Noritar both read 1:2 f=80mm and take a 62 mm screw-in filter (0.75 mm pitch in Norita's and Graflex's tables; 62 mm in the Revue manual for the Rittron); Norita's Japanese price list sells one hood for the 55, 80 and 160 mm lenses
- Easily mistaken for the Noritar 55mm f/4: Norita built the two to the same size (both 76 × 62 mm with a 62 mm filter in the Graflex brochure; Topcon Club says they look like the same lens), so read the front ring for 1:2 f=80mm
- Breech-lock Norita 66 mount with the locking ring on the lens, not on the body (Topcon Club; pentaconsix.com); the auto-diaphragm pin moves sideways rather than in and out (pentaconsix.com). Fits the Rittreck 6×6, Warner 66, Norita 66 and Graflex Norita alike (Kamerastore; Topcon Club finds no difference in the mount between Rittreck and Norita); the Revue Rittreck Six's manual describes the same Rittron, though no source here tests the fit
Rittron 80mm f/2 (1968, chrome, for the Rittreck 6×6):
- Chrome barrel: pentaconsix.com lists 'chrome instead of black standard lens' among the Rittreck's differences from the Norita, and the example Hayata Camera Lab photographed is chrome
- Front ring engraved RITTRON 1:2 f=80mm and Lens made in Japan, with the serial prefixed No. (No.680372 on Hayata's lens); no Norita name on the front ring
- Depth-of-field preview ring directly behind the aperture ring; turning it slightly stops the lens down (Topcon Club). The Revue Rittreck Six manual says it is turned to the right and that the diaphragm reopens fully when it is let go
- Revue Rittreck Six manual: 4 groups / 6 elements, f/2–22, 53° angle of view, 0.85 m closest focus, 62 mm filter, fully automatic diaphragm
Noritar 80mm f/2 (1970–1976, black):
- Black barrel with metal focusing and aperture rings; front ring engraved NORITAR 1:2 f=80mm and NORITA KOGAKU JAPAN, with a seven-digit serial and no No. prefix (4011162 on the cover of the Graflex brochure that its form number dates to October 1970, 4011993 on a c.1971 Graflex Norita at Leitz, 4013023 in the 1972 Norita catalogue, 4014249 on Mike Eckman's Graflex Norita)
- Preview ring moved back towards the mount, away from the aperture ring (Topcon Club); Norita's manual has it pushed up and calls it the 'preview control ring next to the lens locking ring'
- Cat. No. 2004 in the 1972 Norita catalogue; aperture scale 2, 2.8, 4, 5.6, 8, 11, 16, 22 on equidistant stops
- Graflex Norita outfits carry this same lens: the Graflex name is on the prism badge, the GRAFLEX NORITAR front cap, the boxes and the literature; it is not on the barrel of either Graflex-sold lens pictured (Leitz lot; Graflex brochure cover; pentaconsix.com for the boxes and literature)
MC Noritar 80mm f/2 (late, multicoated; one report):
- Marked MC: pentaconsix.com's author says he has seen a picture of an 80mm Noritar MC, without describing it further
- The MC 40 mm and 160 mm Noritars described on the same page carry a diamond-grid rubber focusing ring in place of the metal one; whether the MC 80 has it too is not stated
- Rittron 80mm f/2 (1968, chrome, for the Rittreck 6×6): The standard lens of Musashino Kōki's Rittreck 6×6, which Hayata Camera Lab says went on sale in March 1968 at ¥78,500 with this lens, and of its export forms: the Warner 66 (Mike Eckman), the Revue Rittreck Six, whose German manual calls the lens Rittron, and a 'Graphic 6×6' that only Hayata reports. Norita designed and made it (Hayata). Topcon Club says it is 'certainly' Norita's work and the same as the Noritar in everything 'from construction to coating', the only difference being where the preview ring sits. Asahi Camera's New Face column tested it on the Rittreck in April 1969. No end date was found; the Noritar engraving was in use by October 1970 if the Graflex brochure's form number is read as a date (see the Noritar version).
- Noritar 80mm f/2 (1970–1976, black): The Rittron under Norita's own name after Norita took the camera over, optically unchanged (English Wikipedia, citing Hagiya; Topcon Club). Camera-wiki dates the renaming to 1972, but the NORITAR engraving is already on the lens on the cover of Graflex's Norita 66 brochure, form 11143/1070 (read as October 1970; no date is printed), Norita filed its US trademark for the Noritar name on 25 February 1970 (camera-wiki), and Norita's own operator's manual, an edition that already lists seven lenses and the new meter prism, opens '1970 was the year NORITA introduced...'. Norita's 1972 table gives 4 groups / 6 elements, F2–22, 0.85 m, 54° diagonal, a 62 mm × 0.75 filter, 76 × 62 mm and 440 g (15 oz); Graflex's brochure the same, with 15.5 oz. An undated Norita Japanese price list gives ¥25,200 for the lens alone. Asahi Camera's New Face column tested it with the Norita 66 in May 1972. Production ended with the camera in 1976 (Japanese Wikipedia, camera-wiki); Topcon Club calls 1977 the last year the Norita 66 was sold.
- MC Noritar 80mm f/2 (late, multicoated; one report): Known from one report. Pentaconsix.com's correspondent Selmar Meents described the MC 40 mm lenses he owned as marked MC, with diamond-grid rubber focusing rings, and thought the MC lenses were made in small numbers at the end of Norita 66 production; the site's author then found an MC 160 mm and saw a picture of an MC 80 mm. The same author says that when he was looking at the Norita in the mid-to-late 1970s none of its lenses was multicoated, and that the system had virtually ceased production before multicoating came in. A Rangefinder Forum post calls the late multicoated 55, 80 and 160 lenses improvements on the originals. No dated example, serial number or listing of an MC 80 was found for this page.
Serial-range notes
- No.680372 (Rittron)
- The one Rittron serial seen, on the lens Hayata Camera Lab photographed, is six digits with a No. prefix. No range is published.
- 401xxxx (Noritar)
- Every Noritar 80 serial seen begins 401: 4011162 on the cover of the Graflex brochure (form 11143/1070, read as October 1970), 4011993 on a c.1971 Graflex Norita sold by Leitz Photographica Auction (body 710597), 4013023 in Norita's 1972 catalogue, and 4014249 on Mike Eckman's Graflex Norita (body 711411). No published range exists and no MC serial has been seen.
Specifications
- Formula
- Gauss type, 6e/4g
- Construction
- 6 elements / 4 groups
- Aperture range
- f/2–f/22
- Diaphragm blades
- 6
- Min. focus
- 0.85 m
- Dimensions
- 76 × 62 mm
- Weight
- 440 g
- Filter
- 62 mm (0.75 mm pitch)
- Years manufactured
- 1968–1976
- Country
- Japan
- Coating
- Disputed: single-coated by pentaconsix.com's and LensRetro's accounts, multicoated by Topcon Club's (amber with cyan and magenta, the same on the Rittron); a late version marked MC is reported
- Material
- Metal barrel and rings: chrome on the Rittron, black on the Noritar
- Original price
- ¥25,200 (¥23,000 tax-free) for the lens alone, on an undated Norita Kōgaku Japanese price list sold with a ©1972 Japanese catalogue; the same list gives ¥108,600 for the black Norita 66 with this lens and the prism finder. Otherwise only outfit prices are known: ¥78,500 for the Rittreck Six with the Rittron at its March 1968 launch (Hayata Camera Lab), $650 for the Norita with this lens in Modern Photography's December 1974 SLR roundup (Mike Eckman), and ¥113,400 for the Norita 66 with its standard lens in 1977 (Topcon Club). (today ¥79,000)
What reviewers say
- Topcon Club (Norita Club 2) (blog) — Puts the Noritar 80 level with Topcon's Super Topcor 105mm f/4.5 for the Horseman: a slightly cool but accurate colour on negative film, edges a touch soft wide open as usual for a Gauss but hard to see on 120, and, unexpectedly for f/2, a rather weak background blur, which he allows may be down to his subjects. Reports Asahi Camera's New Face column finding very little spherical aberration or focus shift and calling the resolution extremely sharp. via machine translation — corrections welcome
- Mike Eckman (blog) — Two rolls of expired Ektacolor 160 through a Graflex Norita 66 gave sharp, clear frames that he rates as good as any fast medium-format prime from an A-list maker; the fast lens is what drew him to the camera, and he recommends the system for its handling and its optics.
- Aivaras (35mmc), on a Pentax MZ-S (blog) — Bought the Norita for the 80/2's dreamlike rendering. Adapted to a 35mm Pentax it is sharp from wide open with soft, dreamy bokeh and its own colour, though the look differs from what it gives on 120, and the adapter means metering and focusing stopped down with a fiddly aperture coupling. Not worth the fuss, he says, but great fun.
- luisalegria (MFLenses forum) (blog) — A dropped example rebuilt as a manual-diaphragm M42 lens: reasonably sharp at f/2 and a natural portrait lens, but no match for his Zeiss Biotar wide open. He warns that the short flange distance makes Noritars hard to adapt to other medium-format SLRs.
- Hayata Camera Lab (Rittron version) (blog) — A repair shop's sample photographs with a Rittreck Six and its Rittron at f/5.6–f/8 showed, in its words, a lens of very fine rendering, the fastest 6×6 SLR lens in the world when it was new; the piece is mostly about the camera. via machine translation — corrections welcome
Optical formula — Gauss type, 6e/4g
No cross-section found: the Graflex brochure and the 1972 Norita catalogue give only 'Gauss type' and 6 elements in 4 groups, and the Revue Rittreck Six manual only '4 Gruppen mit 6 Elementen', none with a drawing; no patent assigned to Norita Kōgaku for this lens turned up.
History
The 80mm f/2 was the standard lens of the 6×6 SLR that began as Musashino Kōki’s Rittreck 6×6 in March 1968 and ended as Norita Kōgaku’s Norita 66, which Norita stopped making in 1976 (Topcon Club gives 1977 as its last year on sale). Norita designed and made it from the start, first as the Rittron for Musashino and then, once it had taken the camera over, under its own Noritar name. At f/2 it was the fastest lens on any 120-film camera of its day: Topcon Club notes that the medium-format normals of the time were almost all f/2.8, with only the Pentax 6×7 at f/2.4, and Japanese Wikipedia says nothing faster appeared until Mamiya’s 645 Sekor 80mm f/1.9. Norita’s 1972 catalogue gives a Gauss type of 6 elements in 4 groups, f/2 to f/22, 0.85 m closest focus, 54° on the diagonal, a 62 mm × 0.75 filter, 76 × 62 mm and 440 g, and Singer Graflex’s brochure, which its form number dates to October 1970, the same figures. An undated Norita Japanese price list puts the lens at ¥25,200 alone and ¥108,600 with the body and prism. In the United States Modern Photography listed the outfit with this lens at $650 in December 1974.
Three versions are recorded. Topcon Club, which has handled the first two, says they share one design “from construction to coating”. The Rittron is chrome and engraved RITTRON 1:2 f=80mm and Lens made in Japan, with a No.-prefixed serial. It came on the Rittreck, the Warner 66 and the Revue Rittreck Six, whose German manual gives it the same 4/6 construction and a 53° angle. Its preview ring sits directly behind the aperture ring. The Noritar is black, engraved NORITAR 1:2 f=80mm and NORITA KOGAKU JAPAN, with seven-digit serials beginning 401, and its preview ring has moved back towards the mount. Camera-wiki dates the change of name to 1972, but a Noritar-engraved lens is already on the cover of the Graflex brochure whose form number reads as October 1970, Norita had filed for the Noritar trademark in the United States in February 1970, and Norita’s own manual puts the camera’s introduction in 1970. The Graflex Norita outfits used the same lens: the Graflex name went on the prism badge, the GRAFLEX NORITAR cap and the boxes, and on the two Graflex-sold lenses pictured in the sources it is not on the barrel. The third version, an MC Noritar, rests on one sentence at pentaconsix.com and a Rangefinder Forum post. Pentaconsix.com’s author has seen a picture of one, and the other MC Noritars he describes are marked MC and have a diamond-grid rubber focusing ring in place of the metal one. The coating of the ordinary lens is itself disputed. Topcon Club calls the 80 multicoated, amber with cyan and magenta, while pentaconsix.com’s author says none of the Norita lenses was multicoated when he looked at the system in the mid-to-late 1970s, and LensRetro calls it single-coated.
The period verdicts are mixed. Asahi Camera’s New Face column tested the Rittron in April 1969 and the Noritar in May 1972. Topcon Club reports that the column found very little spherical aberration or focus shift and called the resolution extremely sharp, without saying which test. Amateur Photographer reviewed the Norita with this lens on 27 October 1971. Pentaconsix.com’s summary of that review and the following week’s lens tests is that many of the lenses were not very sharp at large apertures and showed flare, but it does not separate the 80 from the others. Mike Eckman, on the other hand, says comments on the lens’s sharpness were common in the contemporary reviews of both cameras that he read. Graflex’s own brochure concedes “a minimum of flare” that stopping down slightly removes. Modern owners are kinder. Topcon Club’s author puts it level with Topcon’s Super Topcor 105mm f/4.5 for the Horseman, with slightly soft edges wide open that 120 film hides, and is surprised that the background blur is weaker than f/2 promises, though he allows that his subjects may be the cause. Eckman found it as sharp as any A-list maker’s fast prime, and Aivaras, shooting it on a 35mm Pentax, describes it as sharp from wide open with a dreamlike rendering. Luisalegria, on MFLenses, found it reasonably sharp at f/2 but short of a Zeiss Biotar.
The Rittron and the Noritar fit every body in the line: Topcon Club finds no difference in the mount between the Rittreck and the Norita, Kamerastore lists the lens for the Norita 66, Graflex Norita, Rittreck 6×6 and Warner 66, and the breech-lock ring is on the lens, not the body. Since Topcon Club finds the Rittron and the Noritar identical inside, the choice between them is a matter of finish and condition. Check the automatic diaphragm first. The dropped example that luisalegria rebuilt had a bent filter thread, a jammed aperture ring, a misaligned linkage, a weak diaphragm spring and a sticky diaphragm he put down to oil, so check that the blades close briskly when the sideways-moving pin is worked and open again fully, and that the preview ring does the same. Check the front ring too: Norita built the 55mm f/4 to the same size and filter, so a listing photographed from the side can be either lens. The lens is awkward to use on anything else. Its register is shorter than the Pentacon Six’s 74.1 mm and its rear is wider, so it will not go on that camera at all. Pentax K adapters exist but couple the diaphragm only through a setting ring, and luisalegria’s M42 conversion gave up the automatic diaphragm. The Japanese price list sells one hood for the 55, 80 and 160 mm lenses.
Left open by the sources consulted here: the end date of the Rittron, any date, serial or confirmed photograph for the MC version, whether the standard Noritar was multicoated, the exact register distance, and who designed it. Topcon Club credits the Noritar lenses as a whole to Maruyama Shūji, Kishimoto Tadashi (岸本匡; the reading of the given name is a guess), Okazaki Masayoshi and others, all known for lens design at Tōkyō Kōgaku, and camera-wiki names Maruyama as one of Norita’s lens designers, but neither assigns this lens to any one of them. The Asahi Camera and Amateur Photographer tests and Hagiya Takeshi’s chapter on the Norita 66 were not read directly.
This history is AI-written, from the sources listed at the foot of the page. Where the record is silent it says so rather than filling the gap — but no human wrote these sentences.
Example photos
More sample photos elsewhere
- Hayata Camera Lab, December 2018: sample photographs with the Rittron 80mm f/2 on a Rittreck Six, f/5.6–f/8
- Mike Eckman: two rolls of expired Kodak Ektacolor 160 through a Graflex Norita 66 and the Noritar 80mm
- Aivaras (35mmc): the Noritar 80mm f/2 on a Pentax MZ-S, Kodak Portra 400
- luisalegria (MFLenses forum): sample photographs from a repaired Noritar 80/2 converted to M42
These photographers keep all rights to their work — enjoy it at the source.
Sample photo wanted — shot with a Rittron / Noritar 80mm f/2? We'd love to feature it (with credit).
Live listings
The listings collector hasn't run for this family yet — check back soon, or search the marketplaces directly meanwhile.