In 2021 the Digital Enlarger Lens Test Archive (D.E.L.T.A) outgrew its original home at 16-9.net – and its remit. It continues to expand, and is now the most wide-ranging resource for film-makers and photographers seeking and using enlarger, projector, macro, repro, process and cine lenses to create digital work. Spanning more than 170 years, Delta collates information on almost 4,000 universally-adaptable lenses, and contains hundreds of unique reviews and articles.
The quick-browse catalogue below orders every lens by manufacturer and can be filtered by category or keyword.
The primary archive tracks generations of lenses with more in-depth information, and ranks hundreds for sharpness and rendition. Please use the main menu and search function to access further articles, pictures and videos.
QUICK-BROWSE CATALOGUE
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Durst Componar 75/4.5
AKA Schneider Componar 75/4.5 [V1] enlarger lens. Silver body. |
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Durst Componon 105/5.6
Enlarger lens made by Schneider. Bare black version of jacketed. Actually stops to f45. |
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Durst Componon 105/5.6
Enlarger lens made by Schneider. Durst silver body. Actually stops to f45. |
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Durst Componon 150/5.6
Enlarger lens made by Schneider. Fitted to Auto-Docu Laborator 54 in 1962. Actually stops to f45. |
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Durst Componon 50/4 [V1]
AKA Schneider Componon 50/4 [V2] enlarger lens. Chromed brass body marked ‘027’. Circular (not scalloped) aperture. |
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Durst Componon 50/4 [V2a]
AKA Schneider Componon 50/4 [V3] enlarger lens. Durst silver body with proprietary Durst mount – which makes infinity focus unworkable without modification (see FFD and Extension figures). Sample for test provided by West Yorkshire Cameras. |
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Durst Componon 50/4 [V2b]
AKA Schneider Componon 50/4 [V3] enlarger lens. Silver body marked ‘CPN 50’, sometimes seen with M39 adaptor. |
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Durst Componon 50/4 [V3]
AKA Schneider Componon 50/4 enlarger lens. Black metal body marked ‘CPN 50’. |
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Durst Componon 80/5.6
AKA Schneider 80/5.6 V2 enlarger lens. Durst silver or black body. |
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Durst Componon 80/5.6
AKA Schneider 80/5.6 V3 enlarger lens. Durst silver or black body. |
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Durst Comprotar 75/4.5
Rebranded Schneider Componar 75/4.5 enlarger lens. All black and silver barrel/black fascia versions. |
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Durst Magico 38/4.5
Made by Schneider for Magico enlarger. |
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Durst Neonon 105/5.6
AKA Agfa Magnolar enlarger lens. Made in Japan (Pentax?) |
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Durst Neonon 50/2.8 [Pentax V1]
AKA Agfa Magnolar enlarger lens. Made in Japan (Pentax?). Version 1 has a three-row stippled rubber aperture ring that functions as a stepless aperture ‘clutch. Serials (all 5xxxxx) engraved on fascia. |
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Durst Neonon 50/2.8 [Pentax V2]
AKA Agfa Magnolar enlarger lens. Made in Japan (Pentax?). Version 2 is rare and has a four-row stippled rubber aperture ring that functions as a stepless aperture selector. Rear element housing may be slightly shorter than V1. |
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Durst Neonon 50/2.8 [Pentax V3]
Made in Japan (Pentax?). Version 3 has a black body with silver nose ring, a knurled aperture ring and 5/6-digit serials beginning with zero printed on a sticker. The front ring engages and disengages click stops. Colour correction: 380-700nm. |
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Durst Neonon 80/5.6
AKA Agfa Magnolar enlarger lens. Made in Japan (Pentax?) |
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Durst Neotar 50/3.5
Enlarger lens. Made in Japan (Pentax?) |
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Durst Neotar 75/3.5
Enlarger lens. Made in Japan (Pentax?) |
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Durst Neotar 75/4.5
Enlarger lens. Made in Japan (Pentax?) |
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Durst Neotar-N 75/3.5
Enlarger lens. Made in Japan (Pentax?) |
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Durst Neotaron 50/2.8
Durst-repackaged Rodenstock Rogonar 50/2.8. Single-coated enlarger lens. |
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Durst Neotaron 75/4.5
Rodenstock enlarger lens marketed by Durst: repackaged Rogonar 75/4.5. |
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Durst Optar 50/2.8
Japanese-made enlarger lens (probably by Fujimoto) AKA Jessop 50/2.8 [V2]. Some versions marked ‘Durst’ only (minus Optar). |
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E Ocean 50/3.5
Zebra enlarger lens. |
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E Ocean 75/3.5
Zebra enlarger lens. |
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E-Ikor 50/3.5
Enlarger lens. |
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E-Ikor 75/4.5
Zebra IPC enlarger lens marked E-Ikor Anastigmat. |
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E-Lucky 50/2.8
Japanese enlarger lens AKA Fujimoto [V1], Jessop, Spiratone Resomax, Vivitar, Phago, etc. Marked ‘6 ELEMENTS’. Black body, silver mount. |
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E-Rondonar 50/3.5
Black metal enlarger lens. Single-coated. Likely triplet. |
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Ebata 100/3.0
Fitted to Ebata 35mm slide projector. Lens marked “slideprojector 4 inch”. |
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Echo Anastigmat 50/3.5
Enlarger lens. |
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Echo Anastigmat 75/4.5
Silver body. Likely triplet enlarger lens. |
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Edar tZK 100/2.8
Fitted to Predom Prexer Profile compact slide projector. |
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Edilor 50/3.5
Standard lens fitted to Edilor enlarger. |
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Efco 35/3.5
Half-frame enlarger lens likely AKA Prinz, Coligor, Yamasaki, Vivitar, etc. |
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Elgeet 111/1.5
Projector lens |
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Elgeet 120/0.9
Projector lens |
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Elgeet 51/4.5
This probably the version fitted to Fotolarger Master-E enlarger. Silver body. Elgeet now Navitar. |
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Elgeet Cine Navitar 150/3.8
Cine projector lens marked 6 inch. Silver metal barrel. |
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Elgeet Cine Navitar 38/1.9
Cine projector lens marked 1 1/2 inch. Silver metal barrel. Image circle c.25mm |
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Elgeet Cine Navitar 50/1.9
Cine projector lens marked 2 inch. Silver metal barrel. Image circle c.30mm |
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Elgeet Cine Navitar 75/1.9
Cine projector lens marked 3 inch. Silver metal barrel. Image circle c.30mm |
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Elgeet Colorstigmat 135/4.5
Silver lens fitted to Fotolarger Professional 1000DC enlarger. Made in Rochester NY (Elgeet now Navitar). |
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Elgeet Colorstigmat 162/4.5
Enlarger lens marked 6 3/8”. Silver body, black nose. Made in Rochester NY (now Navitar). |
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Elgeet Colorstigmat 90/4.5
Silver enlarger lens. Made in Rochester NY (now Navitar). |
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Elgeet Colorstigmat Apos 127/5.6
Enlarger lens. Silver body. Elgeet now Navitar |
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Elgeet Colorstigmat Apos 90/4.5
This probably the version fitted to Fotolarger E-2 enlarger. Silver body. Elgeet now Navitar. |
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Elite Optics Eltar 100/2.8
Fitted to Elite Optics 35mm slide projector |
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Elmo 75/1.8
35mm slide projector lens for Ilford Elmo. White fascia. Made in Japan. |
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Elmo 75/2.5
35mm slide projector lens for Ilford Elmo. White fascia. Made in Japan. |
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Elmo 85/2.8 [V1]
35mm slide projector lens for Ilford Elmo CV II and CS II. White fascia. Made in Japan. |
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Elmo 85/2.8 [V2]
35mm slide projector lens for Elmo S-300. All black. Made in Japan. |
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Emil Busch 150/3.6
Projector lens marked Rathenow. Barrel: 62mm diameter. Aperture estimated (unmarked). |
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Emil Busch 180/3.6
Projector lens marked Rathenow. |
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Emil Busch Glaukar Anastigmat 104/3.1
Early enlarger / projector lens “for enlarging by means of gas or oil light”. Brass body marked 4 1/8” |
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Emil Busch Glaukar Anastigmat 129/3.1
Early enlarger / projector lens “for enlarging by means of gas or oil light”. Brass body marked 5 1/8” |
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Emil Busch Glaukar Anastigmat 150/3.1
Early enlarger / projector lens “for enlarging by means of gas or oil light”. Brass body marked 6” |
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Emil Busch Glaukar Anastigmat 204/3.1
Early enlarger / projector lens “for enlarging by means of gas or oil light”. Brass body marked 8 1/4” |
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Emil Busch Glaukar Anastigmat 60/3.1
Early enlarger / projector lens “for enlarging by means of gas or oil light”. Brass body marked 2 3/8” |
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Emil Busch Glaukar Anastigmat 69/3.1
Early enlarger / projector lens “for enlarging by means of gas or oil light”. Brass body marked 2 3/4” |
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Emil Busch Glaukar Anastigmat 78/3.1
Early enlarger / projector lens “for enlarging by means of gas or oil light”. Brass body marked 3 1/8” |
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Emil Busch Glaukar Anastigmat 88/3.1
Early enlarger / projector lens “for enlarging by means of gas or oil light”. Brass body marked 3.5” |
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Emil Busch Neokino 100/3.6
Projector lens. Metal barrel 62.5mm. Aperture estimated (unmarked). |
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Emil Busch Neokino 110/3.6
Projector lens marked A-G Rathenow. Metal barrel: 62.5mm. Aperture estimated (unmarked). |
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Emil Busch Neokino 120/3.6
Projector lens marked A-G Rathenow. Metal barrel: 82.5mm. Aperture estimated (unmarked). |
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Emil Busch Neokino 150/3.6
Projector lens marked A-G Rathenow. Metal barrel: 82.5mm. Aperture estimated (unmarked). |
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Enna Ennagon 230/3.5
Opaque projector lens for Ennascop marked Enna München. Multicoated. |
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Enna Ennagon 80/4.5
Enlarger lens. |
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Enna Ennagon 85/2.8
35mm slide projector lens for Type 8020 marked Enna München. All black 77mm long version. |
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Enna Ennagon 85/2.8
35mm slide projector lens for Ennamar 150H marked Enna München. Black with white fascia ring. 67mm long version. |
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Enna Ennagon 85/2.8
35mm slide projector lens for Infomat 150H marked Enna München. All-black 61mm long version |
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Enna Ennagon 90/4.5
Enlarger lens. |
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Enna Ennalyt 90/2.5
Multicoated slide projector lens marked Enna München. Black plastic barrel. |
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Enna Ennaplan 50/4.5
Enlarger lens. |
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Enna Ennar 100/3.5
Slide projector lens marked Enna Werk München f:10cm. Black body. |
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Enna Ennaron 50/4.5
Enlarger lens. |
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Enna Lithagon 60/2.8
Metal body slide projector lens marked Enna München. |
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Enna Ortho-Ennit 75/4.5
Tessar enlarger lens. |
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Enna Patrinast 100/2.8
Slide projector lens. See Liesegang Patrinast. Black body. Silver nose. |
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Enna Proj-Ennar 100/2.8
Aluminium body slide projector lens. Several versions. |
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Enna Proj-Ennar 150/3.5
Aluminium body slide projector lens |
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Enna Werk 135/3
Slide projector lens marked Enna Werk München. Black body. Silver nose like Enna Patrinast. |
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Ensign Ensar 105/4.5
British lens fitted to Ensign Standard enlarger. |
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Ensign Ensar Anastigmat 80/6.3
Enlarger lens. |
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Ernemann Ernostar 100/2
Cine lens made by Zeiss Dresden. |
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Ernemann Ernostar 50/1.9
Cine lens made by Zeiss Dresden. Image circle c.45mm |
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Ernemann Werke Stigmat 100/
Slide projector for Ernemann Unox lens made by Zeiss Dresden. |
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Ernst Ludwig Auxanar 105/4.5
Enlarger lens made in Dresden. |
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Escot Anastigmat 25/3.5
AKA Ultima enlarger lens. 30mm image circle only |
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Eskofot Ultragon 210/9
Plasmat process lens made by Staeble. AKA Agfa Super-Intergon / Helioprint. |
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Eskofot Ultragon 305/9
Plasmat process lens made by Staeble. AKA Agfa / Heloprint. |
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Etude T-3 80/2.8
Russian 35mm slide projector Petzval lens fitted to Etude series. |
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Ewar 50/3.5
Enlarger lens. |
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Ezumar 130/3.2
Fitted to Romanslide FG-500 medium format slide projector. |
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Ezumar Anastigmat 100/3
Fitted to Romanslide 35mm slide projector. Marked 4”. |
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Ezumar Anastigmat 127/3
35mm slide projector. Metal body. Black nose. Marked 5”. |
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F. Faliez Siamor (Series 1) 115/2.5
Brass-bodied Petzval projector lens. Images courtesy eminlapa > |
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F. Faliez Siamor (Series 2) 110/2.0 [V1]
Brass-bodied 35mm Petzval projector lens. Series 2 model. Markings on fascia plate inside hood. Images by RetroFocale > |
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F. Faliez Siamor (Series 2) 110/2.0 [V2]
Brass-bodied 35mm Petzval projector lens. Series 2 model. Markings on black mid-barrel ring. Images by RetroFocale > |
Acknowledgements: The DELTA project wouldn’t have been possible with the naysaying of experienced lens collectors; the death of film; the opposition of my wife; the embezzlement of shady eBay sellers and Japanese auction agents; the re-branders; the same 50/3.5 seen in a thousand guises; the unhelpful attitide of extant manufacturers who jettisoned their history without a backward glance (Schneider, Rodenstock et al); the corporations who swallow the legacies of decades without concern for their preservation; the disregard of librarians and archivists who no longer value photographic publications; the copyright laws prohibiting reproduction of adverts advertising things no longer made, once made by people and companies that no longer exist; the museums failing to digitise their collections and refusing to grant access to material rotting unseen in their basements; the sheer bloody-mindedness of Agfa serial numbers; the arrogance of those who have previously written about alt.lenses and imagine their sayings to be unalterably definitive, despite being patently erroneous; widespread dementia and death befalling a generation of those with inside knowledge of the industry; widespread withering of the information internet and the rise of regurgitated AI gobbledygook; the majority of used camera dealers who regard these lenses as pointless relics and have no interest in deploying them as taking lenses and regard their slow-moving stock as an irritation; clueless marketing people devoid of specific product knowledge; an overwhelming majority of photographers apathetic about the benefits and possibilities of alt.lenses; the publishers who failed to express an interest in a book deal; the army of DIY botchers who took their lenses apart and didn’t know how to put them back together again; a postal system that loses packages as a normal happenstance; and all the fungus. Against this tide stand we few. You know who you are. Thank you.