Welcome to Delta

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 130 years, Delta collates information about almost 3,500 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.

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voss_75e
Voss 75/3.5 [V2]
Japanese enlarger lens with black metal body.
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Voss 90/4.5
Japanese enlarger lens.
votron-75mm-f3.5
Votron 75/3.5
Japanese-made rebranded enlarger lens AKA DOI, Prinz Autocrat, et al.
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VTEC 105/4.5
Chinese enlarger lens still for sale in Australia in 2022. AKA Astron / Silcor.
vtec-50-4.5a
VTEC 50/4.5
Chinese enlarger lens still for sale in Australia in 2022. AKA FirstCall, Andere, LPL.
vtec-75-3.5a
VTEC 75/3.5
Chinese enlarger lens still for sale in Australia in 2022. Known in the UK as FirstCall.
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Waterworth-Hobart 101/3.5
Silver metal-bodied lens for Waterworth 35mm slide projector. Single-coated. Marked 4”. Aperture estimated.
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Waterworth-Hobart 127/3.5
Silver metal-bodied lens for Waterworth Model C 35mm slide projector. Single-coated. Marked 5”. Aperture estimated.
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Wiko 100-150/3.5
Multicoated zoom black plastic-bodied lens with worm gear for Kodak slide projectors.
will-adox-maginon-85a2
Wilhelm Will Adox-Maginon 85/2.8
Black plastic barrel 35mm slide projector lens with silver nose marked ‘Will, Wetzlar’ fitted to Adox 300.
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Wilhelm Will Lumagon 150/2.8
Slide projector lens marked Will-Wetzlar. Black plastic body. Some versions MC.
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Wilhelm Will Maginon 100/2.8 [V2]
Projector lens marked Will.Wetzlar. AKA Gnome, Agomar, Adox Maginon.
maginon-150
Wilhelm Will Maginon 150/3
Projector lens marked Will.Wetzlar. Lanthanum glass. AKA Gnome, Agomar, Adox Maginon.
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Wilhelm Will Maginon 200/3.5
Projector lens marked Will.Wetzlar.. Lanthanum glass. AKA Gnome, Agomar, Adox Maginon.
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Wilhelm Will Maginon 250/4
Projector lens marked Will.Wetzlar. Speziale MC. Lanthanum glass.
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Wilhelm Will Maginon 45/2.8
German lens fitted to Fantimat 110-format slide projector. Image circle likely sub-35mm diameter.
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Wilhelm Will Maginon 80/2.8
Slide projector lens marked Will-Wetzlar. Black plastic body.
will-maginon-85-v0-b
Wilhelm Will Maginon 85/2.8 [V1]
Metal barrel 35mm slide projector lens.
will-maginon85-v10a
Wilhelm Will Maginon 85/2.8 [V10]
Black plastic-barrel 35mm slide projector lens by Wilhelm Will marked ‘Will – Wetzlar’.
will-maginon-85-v1-c
Wilhelm Will Maginon 85/2.8 [V2]
Projector lens for Adox 300. Black body. Marked ‘W.WILL OPTIK PROJ-MAGINON’.
maginon85-v3-a
Wilhelm Will Maginon 85/2.8 [V3]
Common 35mm slide projector lens. Black plastic barrel. Marked Will-Wetzlar. AKA Gnome, Adox Maginon.
maginon85-product
Wilhelm Will Maginon 85/2.8 [V4]
Common 35mm slide projector lens. Black plastic barrel. Marked Will-Wetzlar. AKA Gnome, Adox Maginon.
will-maginon85-v5a
Wilhelm Will Maginon 85/2.8 [V5]
Black metal-barrel 35mm slide projector lens by Wilhelm Will marked Will.Wetzlar.
will-maginon85-v6a2
Wilhelm Will Maginon 85/2.8 [V6]
Black plastic-barrel 35mm slide projector lens by Wilhelm Will marked Will-Wetzlar.
will-maginon85-v7a
Wilhelm Will Maginon 85/2.8 [V7]
Black plastic-barrel 35mm slide projector lens by Wilhelm Will marked Will-Wetzlar.
will-maginon85-v8a
Wilhelm Will Maginon 85/2.8 [V8]
Black plastic-barrel 35mm slide projector lens by Wilhelm Will marked Will-Wetzlar.
will-maginon85-v9a
Wilhelm Will Maginon 85/2.8 [V9]
Black plastic-barrel 35mm slide projector lens by Wilhelm Will marked ‘W. Will, Wetzlar’.
braun_d7_will_maginon-85-4.5
Wilhelm Will Maginon 85/4.5
Black plastic-barrel 35mm slide projector lens for Braun D7 marked Will-Optik.
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Wilhelm Will Maginon 90/2.8
Slide projector lens marked Will.Wetzlar. Black plastic body. Some versions MC. AKA Gnome, Agomar, Adox Maginon.
will-maginon-a-85-a
Wilhelm Will Maginon A 85/2.8
Projector lens by Wilhelm Will of Wetzlar.
will-stellar-100c
Wilhelm Will Stellar 100/2.8
Slide projector lens marked Will.Wetzlar. Silver metal body. Zebra nose. Black fascia.
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Wilhelm Will Stellar 85/2.8
Fitted to Braun slide projector. Marked Will.Wetzlar. Metal body.
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Wilhelm Will Super Stellar 85/2.3
Slide projector lens. Cooke triplet. Black plastic body. 42Mm tube.
will-super-stellar-85-2.5c
Wilhelm Will Super Stellar 85/2.5
Slide projector lens marked WILL, WETZLAR. Metal barrel with zebra nose.
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Wilhelm Will Super Stellar 85/2.8
Slide projector lens marked Will.Wetzlar. Black plastic body.
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Wilhelm Will Vario Economic 70-120/3.5
Slide projector lens marked Will-Wetzlar. Black plastic body. Aperture unmarked (estimated)
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Wilhelm Will Vario Maginon 70-120/3.5
Slide projector zoom lens marked Will.Wetzlar. Lanthanum glass. Awarded 4/5 for image quality by Chasseur d’Images magazine.
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Wilhelm Will Vario Stellar 95-160/2.8
Slide projector zoom lens marked Will.Wetzlar.
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Wilhelm Will Vario Travenon 16.5-30/3.5
Super-9 projector zom lens. Black plastic body marked Will.Wetzlar. Aperture unknown (estimated)
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Wilhelm Will Wilon 105/4.5
Silver enlarger lens marked Will.Wetzlar. Black nose. AKA Gnome Wilon. Version A5
will-wilon-105-v1a
Wilhelm Will Wilon 105/4.5 [V1]
German enlarger lens marked ‘Will, Wetzlar’. Silver body, black nose.
will-wilon-105-v2a
Wilhelm Will Wilon 105/4.5 [V2]
Macro Doryt version of all-black 105/4.5 Version B in M42 mount. Marked ‘Will, Wetzlar’.
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Wilhelm Will Wilon 105/4.5 [V3]
Black enlarger lens marked Will-Wetzlar. Octagonal minimum aperture. Ninja-star stopped down. Version B
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Wilhelm Will Wilon 105/4.5 [V4]
Zebra black body enlarger lens marked Will.Wetzlar. Version C.
will-wilon-105-v1d
Wilhelm Will Wilon 105/4.5 [V5]
Silver enlarger lens marked Will.Wetzlar. Some 6-digit serials have white ring on black nose. AKA Gnome Wilon. Version A6
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Wilhelm Will Wilon 135/4.5
Silver enlarger lens marked Will.Wetzlar. Black nose. AKA Gnone Wilon
wilon-50-3.5a
Wilhelm Will Wilon 50/3.5 [V1]
Black M25 enlarger lens made by Wilhelm Will (marked Will.Wetzlar). AKA Berophot 50/3.5.
wilon-macro-doryt-50a
Wilhelm Will Wilon 50/3.5 [V2]
Black macro/enlarger lens apparently based on 50/3.5 [V1] marked WILL WETZLAR MACRO-DORYT
wilon-50-4.5d
Wilhelm Will Wilon 50/4.5 [V1]
Black compact enlarger lens marked Will,Wetzlar
wilon-50-4.5a
Wilhelm Will Wilon 50/4.5 [V2]
Silver enlarger lens marked Will,Wetzlar. Black nose.
wilon-50-4.5c
Wilhelm Will Wilon 50/4.5 [V3a]
Black compact enlarger lens marked ‘WILL,Wetzlar Germany’. Zebra aperture ring. [V3b] appears similar, but unserialled.
will_wilon-50mm_f4.5-v3b-1
Wilhelm Will Wilon 50/4.5 [V3b]
Black compact enlarger lens marked ‘WILL,Wetzlar Germany’. Zebra aperture ring. [V3a] appears similar, but has serial numbers. Note revised, emboldened typography.
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Wilhelm Will Wilon 75/4.5 [V1]
Silver enlarger lens marked Will.Wetzlar. Black nose. AKA Gnome Wilon
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Wilhelm Will Wilon 75/4.5 [V2]
Zebra black body enlarger lens marked Will.Wetzlar. AKA Gnome Wilon.
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Wilhelm Will Wilon 75/4.5 [V3]
Black plastic-body enlarger lens marked Will.Wetzlar.
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Wilhelm Will Wilonar 75/4.5
Zebra enlarger lens marked Will.Wetzlar.
wetzlar_maginon-85-150a
Wilhelm Will Zoom-Maginon 85-150/4
Slide projector zoom marked Will.Wetzlar. Black body. Zebra nose. Multicoated Lanthanum glass. Optional for Zeiss Perkeo range. Aperture unmarked (measured at f4.2-f4.5).
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Winkel-Zeiss 130/3
Cine projector lens in metal 62.5mm barrel. Made in Göttingen. Aperture unmarked (estimated).
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Winkel-Zeiss Mikroluminar 16/2.5
Predecessor of the 16mm Luminar. Marked Winkel-Zeiss Göttingen.
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Wm Hume of Edinburgh 128/5.6
Early Petzval brass enlarger lens marked 5”
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Wollensak Amaton 210/8
Process lens. Silver body. Black fascia. Single ‘Wocoted’. Marked 8.25”.
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Wollensak Amaton 267/8
Process lens. Silver body. Black fascia. Single ‘Wocoted’. Marked 10.5”.
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Wollensak Amaton 380/8
Process lens. Silver body. Black fascia. Single ‘Wocoted’. Marked 15”.
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Wollensak Apochromatic Raptar 152/9
Process lens slotted for Waterhouse stop. Silver body. Black fascia. Single ‘Wocoted’. Marked 6”
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Wollensak Apochromatic Raptar 210/9
Process lens slotted for Waterhouse stop. Silver body. Black fascia. Single ‘Wocoted’. Marked 8.25”
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Wollensak Apochromatic Raptar 260/10
Black process lens marked 10.25”
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Wollensak Apochromatic Raptar 273/9.5
Process lens slotted for Waterhouse stop. Silver body. Black fascia. Single ‘Wocoted’. Marked 10.75”
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Wollensak Apochromatic Raptar 330/10
Process lens slotted for Waterhouse stop. Silver body. Black fascia. Single ‘Wocoted’. Marked 13”.
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Wollensak Apochromatic Raptar 355/10
Process lens slotted for Waterhouse stop. Silver body. Black fascia. Single ‘Wocoted’. Marked 14”.
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Wollensak Apochromatic Raptar 380/10
Process lens slotted for Waterhouse stop. Silver body. Black fascia. Single ‘Wocoted’. Marked 15”.
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Wollensak Apochromatic Raptar 406/10
Process lens slotted for Waterhouse stop. Silver body. Black fascia. Single ‘Wocoted’. Marked 16”.
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Wollensak Apochromatic Raptar 482/10
Process lens slotted for Waterhouse stop. Silver body. Black fascia. Single ‘Wocoted’. Marked 19”.
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Wollensak Apochromatic Raptar 635/10
Process lens slotted for Waterhouse stop. Silver body. Black fascia. Single ‘Wocoted’. Marked 25”.
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Wollensak Cinema-Raptar 152/2.3
Silver body cine projector lens marked 6”
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Wollensak Cinema-Raptar 75/1.9
Silver body cine projector lens marked 3”
wollensak-enlarging-raptar-101a
Wollensak Enlarging Raptar 101/4.5
Tessar enlarger lens marked 4”. Silver body, black fascia (Version 2). Single ‘Wocoted’.
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Wollensak Enlarging Raptar 127/4.5
Tessar enlarger lens marked 5”. Silver body, black fascia. Version 2. Single ‘Wocoted’.
wollensak_raptar-135-v2a
Wollensak Enlarging Raptar 135/4.5 [V1]
Tessar enlarger lens marked 135mm. Thick aperture ring. Unserialled. Silver body, black fascia. Single ‘Wocoted’.
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Wollensak Enlarging Raptar 135/4.5 [V2]
Tessar enlarger lens marked 5 3/8”. Silver body, black fascia. Single ‘Wocoted’.
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Wollensak Enlarging Raptar 162/4.5 [V1]
Tessar enlarger lens. Silver body, black nose. Marked 6 3/8”. Single ‘Wocoted’.
wollensak-162a
Wollensak Enlarging Raptar 162/4.5 [V2]
Tessar enlarger lens. Silver body, black fascia. Marked 162mm. Single ‘Wocoted’.
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Wollensak Enlarging Raptar 190/4.5
Tessar enlarger lens marked 7.5”. Silver body, black fascia (Version 2). Single ‘Wocoted’.
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Wollensak Enlarging Raptar 210/4.5
Tessar enlarger lens marked 8.25”. Silver body, black fascia (Version 2). Single ‘Wocoted’.
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Wollensak Enlarging Raptar 241/4.5
Tessar enlarger lens marked 9.5”. Silver body, black fascia (Version 2). Single ‘Wocoted’.
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Wollensak Enlarging Raptar 25/4.5
Enlarger lens with 25mm image circle. Marked 1”
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Wollensak Enlarging Raptar 302/4.5
Tessar enlarger lens marked 11 7/8”. Silver body, black fascia (Version 2). Single ‘Wocoted’.
wollensak_enlarg_50-v1a
Wollensak Enlarging Raptar 50/4.5 [V1]
Tessar enlarger lens marked 2”. Black body. Silver nose. Single ‘Wocoted’.
wollensak_enlarg_50-v2a
Wollensak Enlarging Raptar 50/4.5 [V2]
Tessar enlarger lens marked 2”. Silver body, black fascia (Version 2). Single ‘Wocoted’.
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Wollensak Enlarging Raptar 75/4.5
Tessar enlarger lens marked 3”. Silver body, black fascia (Version2). Single ‘Wocoted’.
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Wollensak Enlarging Raptar 90/4.5
Tessar enlarger lens marked 3.5”. Silver body, black nose (Version 1). Single ‘Wocoted’.
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Wollensak Enlarging Raptar 90/4.5
Tessar enlarger lens marked 3.5”. Silver body. Black fascia. Version 2. Single ‘Wocoted’.
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Wollensak Enlarging Raptar 91/4.5
Tessar enlarger lens. Silver body. Black fascia. Version 2. Single ‘Wocoted’.
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Wollensak Enlarging Raptar 91/4.5
Tessar enlarger lens. All black body (version 3?). Single ‘Wocoted’.
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Wollensak Enlarging Velostigmat 102/4.5
American enlarger lens marked 4”. Mounts vary (Leica option). Silver body. Black nose.
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Wollensak Enlarging Velostigmat 108/4.5
American enlarger lens marked 4.25”. Mounts vary (Leica option). Silver body. Black nose.
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Wollensak Enlarging Velostigmat 127/4.5
American enlarger lens marked 5”. Mounts vary (Leica option). Silver body. Black nose.
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Wollensak Enlarging Velostigmat 127/6.3
American enlarger lens marked 5”. Mounts vary (Leica option). Silver body. Black nose.
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Wollensak Enlarging Velostigmat 135/4.5
American enlarger lens marked 5 5/16”. Mounts vary (Leica option). Silver body. Black nose.
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Wollensak Enlarging Velostigmat 162/4.5
American enlarger lens marked 6 3/8”. Mounts vary (Leica option). Silver body. Black nose.
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Wollensak Enlarging Velostigmat 165/4.5
American enlarger lens marked 6.5”. Mounts vary (Leica option). Silver body. Black nose.
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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; defrauding by shady eBay sellers and dodgy Japanese auction agents; the re-branders; the same 50/3.5 seen in a thousand guises; the entirely unhelpful attitide of extant manufacturers who jettisoned their history without a backward glance (I would specially like to mention Schneider, Rodenstock and Agfa); the disregard of librarians and archivists who no longer view photographic publications as important; the museums that have failed to digitise their collections and who  refused to grant permission to grant access to relevant 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; 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; a notable number of 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.