Glass Bodies a variant-level encyclopedia of vintage lenses and cameras by iwillpat

ELCAN 66mm f/2

Ernst Leitz Canada · Leica M · 1970

our own finding

Also known as: ELCAN 66mm f/2 · Elcan-M 2/66mm · Leitz Elcan 2/66mm · ELCAN 66mm

Variants & identification

Variant Mount Years Serial ranges Production
283- block, the US Navy lens Leica M — — No figure published. Four unambiguous serials are recorded, 283-0004 to 283-0028, against a claimed run of about 200
183- block Leica M — — Unknown. Two examples are recorded, 183-0003 and 183-0004
  1. Nine elements is one sentence, copied. The figure has no independent corroboration: it appears first in the WestLicht catalogue of March 2018, in a description that also refers the lens to "Lager II page 228" and then says "It comprises with 9 glass elements" — and it appears after that in the same house's later lots under the Leitz Photographica name in 2019, 2020 and 2024, word for word in OstLicht's 2024 catalogue and in the L&H Hong Kong catalogue, and paraphrased by the dealer LSKamera. WestLicht and Leitz Photographica are one house renamed, which Leica's own press release states; OstLicht's English text is identical to WestLicht's down to the ungrammatical "comprises with". Tamarkin, who had 283-0022 in hand in 2023, gives no element count at all, and neither does Japan Camera Hunter, who handled 183-0003. So this is not six houses agreeing. It is one catalogue line, sourced to a book, reprinted. The count is therefore recorded in this note and not in the table above.
  2. Against that stands the 2026 Summicron-M 66 f/2, which Leica says is based on the original and which is six elements in five groups. The transfer is unsafe in both directions. Leica's announcement gives no element count for the original at all and says the design was "optimised and adapted to meet today's standards"; the outlets that reported the reissue attached six-in- five to the new lens only, not to the 1960s one. No group count for the original has ever been published by anyone, which is why that field is empty here rather than borrowed. Nine is a catalogue's word about lenses somebody looked at; six in five is the specification of a lens made in 2026; and the one number nobody has is a measurement.
  3. The one party who knows has not said. The archive lens was judged too valuable to dismantle, so Leica read it by X-ray imaging and industrial CT scanning instead — an account given by the one writer Leica invited to Wetzlar for the launch, from conversations with Leica's own staff, and not repeated in any Leica publication. The same account adds that the optical work did not begin with those scans: Leitz Cine had already recreated the ELCAN design several years earlier for the HUGO 66mm T2.1 cinema lens, and the M project started from that. Two arms of the company have now reconstructed this design, and neither has published an element count for the original.
  4. The date. Leica says late 1960s. Four catalogue entries say c.1970 — Leitz Photographica in 2019, 2020 and 2024, and OstLicht in 2024. Two say 1972 — WestLicht in 2018 and the dealer LSKamera. The sharpest form of the disagreement is internal: serial 283-0028 is catalogued 1972 by WestLicht in March 2018 and c.1970 by Leitz Photographica in June 2024, which is the same physical lens dated two ways by the same auction house under two names. No source gives a first or last year of manufacture. The 1970 shown above follows the commonest catalogue figure and is not a record.
  5. About 200 made, and no document behind it. Leica says "only around 200 units were produced". Leitz Photographica, Tamarkin and LSKamera each say fewer than 200; the OstLicht and L&H catalogues give no number at all. Japan Camera Hunter is the most honest version — "there are no figures for how many of these lenses were produced, but estimates run at less than 200". None of them cites a Leitz production record, and the manufacturer's own archive is reported to hold surprisingly little documentation of the lens's development.
  6. A Navy lens in an Army camera's case. Every account, Leica's included, has the 66mm made for the US Navy, and Leica quotes Mandler — as recounted by Rolf Fricke — on what the Naval Intelligence Service wanted. Yet the lens repeatedly turns up in outfits built on the KE-7A, the military M4, an Army contract camera of 1972 whose top plate is engraved 'FSN 6720-165-7115 CONT. F42600-71-C-2429 US'. What is actually published is weaker than "designed for it": Leica says only that many of these lenses "are also associated with the Leica KE-7A", and the press followed that wording; the visitor's account of the Leica Archive says the 66mm "was originally supplied as part of a specialised military kit centred around the KE-7A"; a collector on the Leica Forum says flatly it "was issued with the KE-7A camera". Nothing published shows it was procured under that contract, the dates run the wrong way, and the archive lens came in a third configuration again — a plain M4 with a 35mm Summicron and a 90mm Elmarit, no KE-7A and no 50mm ELCAN. Whether the KE-7A outfits sold at auction are as issued or assembled later is not established by any source.
  7. Destroyed in combat, or destroyed by paperwork. Japan Camera Hunter wrote in 2012 that many were "destroyed during numerous conflicts", and the auction houses repeat it; collectors on the Leica Forum reject it — "I doubt any 66 was really used in battlefields", answered with "Never let the truth get in the way of a good story!". A better-documented mechanism exists. Leica states that the sets shipped with an instruction manual explaining how to destroy camera and lens in the event of capture. The stronger claim — that an outfit missing any one component was to be destroyed and replaced entire — is not Leica's; it comes from the visitor's account of the archive, where it is also the reason the archive lens survived.
  8. The NATO claim. It is hedged identically wherever it appears — "according to some literature, it was used by North Atlantic Treaty Organization (NATO) during the Cold War" in the WestLicht, OstLicht and L&H catalogues, which is one sentence in three places, and "according to some sources" at LSKamera. Leica hedges the same way, saying historical accounts suggest equipment of this type found use beyond the original Navy commission among Western allied partners. Everybody attributes; nobody cites. Recorded here as the unsourced tradition it is.
  9. The Leica Wiki has no page for this lens. It documents the ELCAN 50mm f/2, the 75mm, 180mm and 450mm Elcan-R, and even the Elcan 7x50 binocular; a full-text search for Elcan returns twenty-three results and none of them is the 66mm. Its own Walter Mandler page lists the 50mm among his designs and not this one. The single most-used English-language Leica reference — the source the ELCAN 50mm entry in this catalog rests on — does not record it at all, which is why there is no serial table, no printed total and no year key here.
  10. One book, cited twice, unread. WestLicht in 2018 and OstLicht in 2024 both refer the lens to James L. Lager, Leica: An Illustrated History, Volume II — Lenses, page 228. It is the only printed reference anywhere in the record, it was not consulted for this entry, and the 2018 citation sits in the same sentence as the nine-element figure that every later catalogue repeats. That would explain why they agree with each other and have nothing behind them.
  11. The record, by lot. WestLicht auction 32, 10 March 2018, lot 113, 283-0028, condition B-, estimate €20,000–24,000, start €12,000 — unsold. Leitz Photographica 35, November 2019, lot 160, 183-0004, condition A-, estimate €60,000–70,000, start €30,000 — €84,000 including premium. Leitz Photographica 37, 21 November 2020, lot 266, 283-0008, condition A- — €90,000 including premium, the highest recorded for the lens alone, confirmed by Leica's own press release. Tamarkin, 18 November 2023, lot 269, 283-0022, estimate $50,000–70,000 — passed. OstLicht, 5 June 2024, lot 132, 283-0004, start €24,000 against an estimate of €45,000–50,000 — €40,000. Leitz Photographica 44, 8 June 2024, lot 182, 283-0028, estimate €60,000–70,000 — failed to open at a €40,000 start. Two examples three days apart, and €40,000 was simultaneously a clearing price and an unmeetable opening bid. The L&H Hong Kong KE-7A set containing 286-0003 has no published result.
  12. One result is in dispute. The KE-7A outfit of Leitz Photographica auction 34, 8 June 2019 — lot 91, camera 1294682, with Elcan 2/50mm 276-0121, Elcan 2/66mm 283-0028, a 35mm Summicron and a 135mm Elmarit — is recorded in the auction house's own online archive as unsold, against an estimate of €80,000–100,000 and a €40,000 start. Leica's magazine LFI reported after the sale that it "sold for 102,000 euros including buyer's premium". Leica's own press release on the results of that auction lists highlights down to €31,200 and does not mention the lot at all, and the same lens was offered again, and unsold again, in 2024. The house's archive is preferred here and the €102,000 is recorded as the published claim it is, not as a price realised.
  13. Specifications not published for the original: minimum aperture, diaphragm blade count, filter thread, weight, length, diameter, angle of view, coating, glass types, and whether the barrel takes a hood or has a removable lens head as the 50mm ELCAN does. The nine blades, f/16 minimum and E49 thread that circulate all belong to the 2026 reissue. An E39 filter size appears in exactly one dealer listing, LSKamera's, and nowhere else, which is why no filter diameter is shown above. The 1 metre minimum focus is better attested: a first-hand handling report, the same dealer, and the launch account that the reissue keeps one metre "just as it did on the original".
  14. No patent has been matched to this lens. Mandler was a prolific patentee and his filings are public, but none has been connected to the 66mm, and the design was executed under a classified contract. No patent of his is attached here on the strength of the resemblance.
How to tell them apart (expand)
  • Engraved **ELCAN**, not ELCAN-R. The -R lenses — the 75mm f/2, 180mm f/3.4 and 450mm f/5.6, with a 90mm f/1 the Leica Wiki lists in its R-lens index without giving it a page — are the Canadian military series for the Leicaflex, a different mount, a different body and a different contract.
  • A small **60** on the barrel. The convention of the period engraved the digits either side of the decimal point without the point itself, so 60 denotes a measured focal length of 66.0mm. Leica states this of the original as well as of the 2026 lens — "as with the original, it refers to the actual focal length, which was measured individually" — and no auction description mentions the engraving at all.
  • The aperture ring turns the opposite way to a standard M lens, and the distance scale follows military rather than Leitz layout. Leica attributes both to the original: the new lens differs from standard models in these respects "as with the Elcan".
  • Leica M bayonet and rangefinder-coupled — confirmed by the one owner who has posted about using one, and by Leica's account of building the reissue as "a fully rangefinder-coupled Leica M lens". Which frameline pair an M body brings up with it is not stated anywhere.

283- block, the US Navy lens:

  • Front ring engraved with the production number, the 283- prefix and the US Navy order number VH6760-168-3240
  • Yellow distance markings. Japan Camera Hunter describes yellow as what is "seen on later versions" against the red of the 183- lens it handled, and the one owner who has posted about shooting a 66mm describes his as yellow. No auction catalogue for a 283- lens states a scale colour
  • Catalogued c.1970 in three sales of 283- lenses and 1972 in two

183- block:

  • A 183- rather than a 283- prefix
  • Red barrel markings. Both recorded examples are described as red-scale — Japan Camera Hunter's "known as a Red Scale because of the red markings on the barrel", and Leitz Photographica's "early red scale version"
  • Neither recorded example is described as carrying the VH6760-168-3240 order number that every recorded 283- lens carries

Serial-range notes

283-0XXX
The prefix is not a date code and not part of the general Leitz sequence. Leica's own description of the original's front ring names three things engraved there — the production number, the initial calculation number C283, and a thirteen-digit US Navy order number. The order number VH6760-168-3240 is thirteen characters once its hyphens are set aside, of which two are letters, so Leica's "thirteen-digit" is loose but its arithmetic lands. So 283 is the calculation number C283 and the four digits after the hyphen are the production count. It is the same convention as the ELCAN 50mm's 276- numbers, and as the Canadian Elcan-R lenses the Leica Wiki does document: the 180mm f/3.4 is inscribed 303-00XX against code C-303, the 450mm f/5.6 is C-329, the 75mm f/2 is C-341. Nothing in a 283- number encodes a year, and no published key exists that would turn one into a date.
283-0004, 283-0008, 283-0022, 283-0028
The four unambiguous auction serials. 283-0004 sold at OstLicht in June 2024, catalogued as "the fourth produced item"; 283-0008 made the highest recorded price for the lens alone at Leitz Photographica in November 2020; 283-0022 was passed by Tamarkin in November 2023; 283-0028 is the most-travelled example known, offered three times in six years by the same house under both its names, and recorded as unsold in the house's archive on all three occasions.
183-0003, 183-0004
A second block, attested by two unrelated handlings — Japan Camera Hunter's red-scale lens of 2012 and Leitz Photographica auction 35 lot 160, which made €84,000 including premium in November 2019. It is the only evidence for the red scale, and the only place the word prototype appears in the record for this lens. See the variant note; the broker and the catalogue disagree about what the block is.
286-0003
Printed exactly so in one Hong Kong catalogue — "extremely rare Elcan-M 2/66mm lens (#286-0003)" — on the 66mm inside a KE-7A set. It conflicts with every other record and with Leica's own naming of C283, and is most likely a typographic slip for 283-0003. It is recorded here as printed because nothing published corrects it. Note that 0003 then appears under two prefixes, and no source reconciles them.
0003–0028
The entire published population. Every serial that has surfaced in a catalogue, a dealer listing or a first-hand account falls between 0003 and 0028, against a production estimate of around 200. Nothing above 0028 is recorded anywhere. Either the surviving and traded population is a very narrow slice of the run, or the 200 figure has less behind it than its repetition suggests. No source notices the gap.
the Leica Archive lens
The one example in the manufacturer's own collection has no serial published anywhere. Leica says it "once formed part of the photographic equipment on board the guided-missile cruiser USS Little Rock", and that the same lens was later used to photograph the decommissioned ship. The fuller provenance — a serviceman named Bryan White, who was ordered to throw a KE-7A-era outfit overboard rather than replace one lost component and kept it instead, and who years later told the story to the Leica historian Rolf Fricke at Kodak — comes from a single visitor's account of the Leica Archive, though Leica's own page corroborates the Fricke link by sourcing its Mandler quotation to him. Fricke's handwritten provenance tag is reported to be still attached. Leica X-rayed and CT-scanned the lens for the 2026 reissue and has published no number from it.

Specifications

Designed by
Walter Mandler — optical design at Ernst Leitz (Canada) Ltd., Midland, Ontario, where he was Head of Development and Vice-President
Aperture range
f/2
Min. focus
1 m
Country
Canada

What reviewers say

Optical formula

No cross-section of the original has ever been published. The only optical diagram in circulation is Leica's own drawing of the 2026 Summicron-M 66 f/2, which is a different computation — calculation number B1047 against the original's C283 — and a different element count. Drawing the original from it would be drawing the new lens and calling it the old one. Marco Cavina's index of technical articles, the usual last resort for obscure optical schemes, contains nothing on any Elcan.

History

There are two ELCANs made for the American military and they are not the same lens. The 50mm f/2 is the KE-7A’s lens, type 276, four air-spaced elements, issued with an Army contract camera and sold to the public in a run of fifty-five. This is the other one: a 66mm f/2 for United States Naval Intelligence, type 283, of which none was ever sold to anybody. Walter Mandler designed both at Midland, Ontario. Leica quotes him on what the Navy asked for — a lens that “looked like any other but delivered an unparalleled level of resolution” — which is the whole brief in a sentence, and explains the focal length. Sixty-six millimetres is not a styling choice. It is where the resolution, the contrast and the size of the barrel could all be had at once. The quotation reaches Leica through the collector Rolf Fricke, which is worth knowing, because Fricke turns out to be the route by which almost everything first-hand about this lens survives.

The lens tells the customer on its front ring, which carries the production number, the calculation number that gives the serial its 283- prefix, and the US Navy order number VH6760-168-3240. On the barrel there is a small 60: the period convention engraved the digits either side of the decimal point and left the point out, so 60 means 66.0mm measured. The aperture ring turns the wrong way round for an M lens and the distance scale is laid out to military rather than Leitz practice. The sets shipped with an instruction manual explaining how to destroy the camera and the lens if capture looked likely.

About 200 were made, which is Leica’s own figure and is hedged with “around”. Nobody cites a Leitz record, and the manufacturer’s archive is reported to hold very little on the lens at all. Set that against the serial numbers actually recorded: 0003, 0004, 0008, 0022, 0028, and nothing else, in any catalogue, dealer listing or first-hand account anywhere. Twenty-six numbers of a claimed two hundred. That is either an unusually thin survival record or an unusually well-travelled estimate, and no source has looked at the two figures together.

The construction is the real argument, and it is thinner than it looks. Nine glass elements is the figure attached to this lens everywhere, and it turns out to be one sentence. It appears in the WestLicht catalogue of March 2018, in the same description that points at the only book anyone cites for this lens, and from there it is reprinted word for word by OstLicht in 2024 and by the Hong Kong house L&H, paraphrased by one dealer, and reused by the same auction house under its later name in 2019, 2020 and 2024. WestLicht and Leitz Photographica are one firm renamed, a fact Leica states in its own press release. The two handlers outside that chain — Tamarkin, who had 283-0022 in hand in 2023, and Japan Camera Hunter, who had 183-0003 in 2012 — give no element count at all. So the nine is not six houses agreeing. It is one catalogue line with a book behind it and a decade of copying in front of it.

Then Leica reissued the focal length in 2026 as the Summicron-M 66 f/2, six elements in five groups, 660 units, and said the new lens was based on the original. That does not settle it either. Leica gave no element count for the original, the reporting attached six-in-five to the new lens rather than to the old one, and a design recomputed to today’s standards is not obliged to keep the count it started with: the original is C283 and the new lens is B1047. Nine is a catalogue’s word about lenses somebody looked at. Six in five is the specification of a lens made in 2026. Neither is a measurement of the object, and no group count for the original exists anywhere at all.

What makes this more than a spec quarrel is that the company can settle it and has not. The archive lens was judged too valuable to dismantle, so it was X-rayed and CT-scanned instead — and even that was not the beginning, because Leitz Cine had already rebuilt the ELCAN design years earlier for the HUGO 66mm T2.1 cinema lens, and the M project started from that work. Two arms of the same firm have now reconstructed this optic from the inside, and the published record still rests on a sentence in a 2018 catalogue pointing at page 228 of a book nobody in the chain appears to have reopened.

Two other things run through the evidence unresolved. The first is the serial blocks: 183- as well as 283-, with 183-0003 called a prototype by the writer who brokered it and 183-0004 sold as an “early red scale version” by the house that catalogued it, and one Hong Kong catalogue printing 286-0003, which agrees with nothing. The second is the camera. The KE-7A is an Army contract body of 1972 and the 66mm is a Navy lens of the late 1960s, and they are repeatedly found in the same case. What is actually published stops short of a design brief — Leica says only that many of these lenses are associated with the KE-7A — and the example in Leica’s own archive came in a third configuration again, a plain M4 with a 35mm Summicron and a 90mm Elmarit. It is an M lens, rangefinder-coupled, and it fits any M body, which is how the collector who owns one came to test it against a Noctilux on an M240, and how the writer Leica invited to Wetzlar shot the archive lens on an M10 Monochrom and an M11 Monochrom.

The Leica Wiki, which documents the 50mm ELCAN, the three Elcan-R lenses and even the Elcan 7x50 binocular, has no page for this one. For the 66mm the surviving objects are the record, one catalogue at a time.

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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

Sample photo wanted — shot with a ELCAN 66mm f/2? We'd love to feature it (with credit).

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Related: ELCAN 50mm f/2

Sources (26)

Every page here is assembled from public sources, and the gaps are real ones. If you own this lens, know a serial number I'm missing, or can see where I have it wrong, tell me — corrections, serials and sample photos are all worth having.