delta – Page 2 – The alt-lens archive

In 2021 the Digital Enlarger Lens Test Archive 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 is a catalgoue of over 3,000 universally-adaptable lenses, including hundreds of unique reviews and articles.

The quick-browse catalogue below orders every lens by manufacturer and can be filtered by category or other 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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	Aetna Actinar 135/4.5 German-made all-silver lens marked with red Double-H, distributed by Aetna Optix (later BKA) for Exakta bellows mount. Also fitted to Mirrorscope. Perhaps made by Steinheil.	Focal Length (mm) 135 Max Aperture (f) 4.5 Min Aperture (f) 32 Rear Mount Exakta, M42 Production 60084, 60099
	Aetna Actinar 75/3.5 Japanese-made zebra lens distributed by Aetna Optix (later BKA) originally as a wide angle for the Optika IIa (Rittreck) 6×9 SLR camera. See also Macro Actinar.	Focal Length (mm) 75 Max Aperture (f) 3.5 Min Aperture (f) 16 Elements 3 Rear Mount Exakta, M39 Serial Numbers 17182, 32529
	Aetna Coligar 25/3.5 Japanese-made enlarger lens sometimes marked Aetna Optix. AKA Perfex, Prinz, Soligor, Ampex, etc. Sub-30mm image circle.	Focal Length (mm) 25 Max Aperture (f) 3.5 Min Aperture (f) 11 Elements 3
	Aetna Coligar 50/3.5 [V1] Japanese-made enlarger lens sometimes marked Aetna Optix. Black body with red-dot aperture mark; silver nose and mount. AKA Perfex, Prinz, Soligor, Ampex, etc.	Focal Length (mm) 50 Max Aperture (f) 3.5 Min Aperture (f) 16 Aperture Type Circular Elements 3 Rear Mount M39 Front Thread N/A Serial Numbers 51149, 93435
	Aetna Coligar 50/3.5 [V2] Japanese-made enlarger lens sometimes marked Aetna Optix. AKA Perfex, Prinz, Soligor, Ampex, etc.	Focal Length (mm) 50 Max Aperture (f) 3.5 Min Aperture (f) 16 Aperture Type Curved 5 Elements 3 Rear Mount M39 Front Thread N/A Serial Numbers 51489, 91409
	Aetna Macro Actinar 25/3.5 Japanese-made lens for Optika IIa (Rittenreck) 6×9 SLR camera. Also used as bellows and enlarger lens – probably AKA Aetna Coligar.	Focal Length (mm) 25 Max Aperture (f) 4.5
	Aetna Macro Actinar 50/3.5 Japanese-made zebra lens for Optika IIa (Rittenreck) 6×9 SLR camera. Also used as bellows and enlarger lens – probably AKA Aetna Coligar.	Focal Length (mm) 50 Max Aperture (f) 3.5
	Aetna Macro Actinar 75/4.5 Japanese-made zebra lens for Optika IIa (Rittenreck) 6×9 SLR camera. Also used as bellows and enlarger lens – probably AKA Aetna Coligar.	Focal Length (mm) 75 Max Aperture (f) 4.5
	Aetna Macro Actinar 90/4.5 Japanese-made lens for Optika IIa (Rittenreck) 6×9 SLR camera. Also used as bellows and enlarger lens – probably AKA Aetna Coligar.	Focal Length (mm) 95 Max Aperture (f) 4.5 Min Aperture (f) 16 Aperture Type Circular 10 Rear Mount M39 Serial Numbers 27648
	Aetna Coligar 105/4.5 Japanese-made enlarger lens sometimes marked Aetna Optix. AKA Perfex, Prinz, Soligor, Ampex, etc.	Focal Length (mm) 105 Max Aperture (f) 4.5 Min Aperture (f) 16 Aperture Type Circular 10 Rear Mount M39 Serial Numbers 18053, 29518
	Aetna Coligar 35/3.5 Japanese-made enlarger lens sometimes marked Aetna Optix. AKA Perfex, Prinz, Soligor, Ampex, etc. 30mm image circle.	Focal Length (mm) 35 Max Aperture (f) 3.5 Min Aperture (f) 16 Aperture Type Curved 5 Elements 3 Rear Mount M39
	Aetna Coligar 75/3.5 Japanese-made enlarger lens sometimes marked Aetna Optix. AKA Perfex, Prinz, Soligor, Ampex, etc.	Focal Length (mm) 75 Max Aperture (f) 3.5 Min Aperture (f) 16 Aperture Type Curved 5 Elements 3 Rear Mount M39 Front Thread N/A Serial Numbers 180710
	Aetna Coligar 90/4.5 Japanese-made enlarger lens sometimes marked Aetna Optix. Silver mount and nose; black body and fascia. AKA Perfex, Prinz, Soligor, Ampex, etc.	Focal Length (mm) 95 Max Aperture (f) 4.5 Min Aperture (f) 16 Aperture Type Curved 5 Rear Mount M39
	AG Optical Trionar 152/3.5 Slide projector lens marked TDC Vivid 6” Anastigmat. Chrome/brass body.	Focal Length (mm) 152 Max Aperture (f) 3.5 Min Aperture (f) 3.5 Aperture Type Fixed
	Agfa 105,672/4.5 Agfa ‘M-Series’ lens of unknown application.	Focal Length (mm) 121 Max Aperture (f) 4.5 Min Aperture (f) 22 Aperture Type Fixed Elements 5 / 3 Rear Mount 27.4×0.5 Front Thread 22×0.5 Production c.1964-c.1970 Serial Numbers FN1295
	Agfa 8506 / 121 Fixed aperture varifocal lens fitted to MSC Series minilabs, optimised for 1.7-2.4x magnification.	Focal Length (mm) 121 Max Aperture (f) 4.5 Min Aperture (f) 22 Aperture Type Fixed Elements 5 / 3 Rear Mount 27.4×0.5 Front Thread 22×0.5 Production c.1964-c.1970 Serial Numbers FN1295
	Agfa 8506 / 122 Fixed aperture varifocal lens fitted to MSC Series minilabs, optimised for 2.3-3.1x magnification.	Focal Length (mm) 121 Max Aperture (f) 4.5 Min Aperture (f) 22 Aperture Type Fixed Elements 5 / 3 Rear Mount 27.4×0.5 Front Thread 22×0.5 Production c.1964-c.1970 Serial Numbers FN1607
	Agfa 8506 / 123 Fixed aperture varifocal lens fitted to MSC MiniLabs and optimised for 1.7-2.4x magnification.	Focal Length (mm) 121 Max Aperture (f) 4.5 Min Aperture (f) 22 Aperture Type Fixed Elements 5 / 3 Rear Mount 27.4×0.5 Front Thread 22×0.5 Production c.1964-c.1970 Serial Numbers FN1295, FN1377, FN2067
	Agfa 8508 / 370 Variable aperture printer controller lens for Agfa d-3 minilabs. Without close-up lens has 55mm front thread and weighs 427g. Focal length and aperture measured (unmarked).	Focal Length (mm) 95 Max Aperture (f) 5.0 Min Aperture (f) 16 Aperture Type Curved 5 Elements 8 / 5 Front Thread M62x0.75 Production c.2000-2010
	Agfa Agolar 85/2.5 Slide projector lens with metal body (silver).	Focal Length (mm) 85 Max Aperture (f) 2.5 Min Aperture (f) 2.5 Aperture Type Fixed Rear Mount 53mm barrel Front Thread N/A
	Agfa Agolon 90/2.5 Multicoated 35mm slide projector lens. Made in Germany.	Focal Length (mm) 90 Max Aperture (f) 2.5 Min Aperture (f) 2.5 Aperture Type Fixed Front Thread N/A
	Agfa Agomar 100/2.5 Slide projector lens. Silver body AKA Reflecta Agomar.	Focal Length (mm) 100 Max Aperture (f) 2.5 Aperture Type Fixed Rear Mount 52mm barrel Front Thread N/A
	Agfa Agomar 150/2.8 Slide projector lens. Silver body. Black nose. AKA Reflecta Agomar.	Focal Length (mm) 150 Max Aperture (f) 2.8 Min Aperture (f) 2.8 Aperture Type Fixed Rear Mount None Front Thread N/A Bokeh Character Very mild bubble. No swirl. Oily smooth. Good.
	Agfa Agomar 60/2.8 Slide projector lens. Silver body AKA Reflecta Agomar.	Focal Length (mm) 60 Max Aperture (f) 2.8 Min Aperture (f) 2.8 Aperture Type Fixed Rear Mount None Front Thread N/A Production 1950s
	Agfa Agomar 70-120/2.8 Multicoated zoom projector lens	Focal Length (mm) 70-120 Max Aperture (f) 2.8 Min Aperture (f) 2.8 Aperture Type Fixed
	Agfa Agomar 85-150/4 Slide projector zoom lens. AKA Reflecta Agomar.	Focal Length (mm) 85-150 Max Aperture (f) 4 Min Aperture (f) 4 Aperture Type Fixed Elements 7 Rear Mount None Front Thread N/A Bokeh Character Very mild bubble. No swirl. Oily smooth. Good.
	Agfa Agomar 85/2.5 [V1] Silver metal barrel lens with black nose fitted to Agfa Opticus 35mm slide projectors. Single coated.	Focal Length (mm) 85 Max Aperture (f) 2.5 Min Aperture (f) 2.8 Aperture Type Fixed Rear Mount None Front Thread N/A
	Agfa Agomar 85/2.5 [V2] Silver metal barrel lens fitted to 1960s Agfa Diamator H and M 35mm slide projectors.	Focal Length (mm) 85 Max Aperture (f) 2.5 Min Aperture (f) 2.8 Aperture Type Fixed Rear Mount None Front Thread N/A
	Agfa Agomar 85/2.8 [V1] Slide projector lens with black plastic barrel fitted to 1960s Agfa CP44.	Focal Length (mm) 85 Max Aperture (f) 2.8 Aperture Type Fixed Rear Mount 42mm barrel
	Agfa Agomar 85/2.8 [V2] Slide projector lens fitted to Agfacolor 50, AKA Reflecta Agomar. Aperture unmarked (estimated).	Focal Length (mm) 85 Max Aperture (f) 2.8 Min Aperture (f) 2.8 Aperture Type Fixed Rear Mount 53mm barrel Front Thread N/A

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The Alt.Lens Archive

Welcome to Delta

QUICK-BROWSE CATALOGUE

Aetna Actinar 135/4.5
German-made all-silver lens marked with red Double-H, distributed by Aetna Optix (later BKA) for Exakta bellows mount. Also fitted to Mirrorscope. Perhaps made by Steinheil.

Aetna Actinar 75/3.5
Japanese-made zebra lens distributed by Aetna Optix (later BKA) originally as a wide angle for the Optika IIa (Rittreck) 6×9 SLR camera. See also Macro Actinar.

Aetna Coligar 25/3.5
Japanese-made enlarger lens sometimes marked Aetna Optix. AKA Perfex, Prinz, Soligor, Ampex, etc. Sub-30mm image circle.

Aetna Coligar 50/3.5 [V1]
Japanese-made enlarger lens sometimes marked Aetna Optix. Black body with red-dot aperture mark; silver nose and mount. AKA Perfex, Prinz, Soligor, Ampex, etc.

Aetna Coligar 50/3.5 [V2]
Japanese-made enlarger lens sometimes marked Aetna Optix. AKA Perfex, Prinz, Soligor, Ampex, etc.

Aetna Macro Actinar 25/3.5

Japanese-made lens for Optika IIa (Rittenreck) 6×9 SLR camera. Also used as bellows and enlarger lens – probably AKA Aetna Coligar.

Aetna Macro Actinar 50/3.5

Japanese-made zebra lens for Optika IIa (Rittenreck) 6×9 SLR camera. Also used as bellows and enlarger lens – probably AKA Aetna Coligar.

Aetna Macro Actinar 75/4.5

Japanese-made zebra lens for Optika IIa (Rittenreck) 6×9 SLR camera. Also used as bellows and enlarger lens – probably AKA Aetna Coligar.

Aetna Macro Actinar 90/4.5

Japanese-made lens for Optika IIa (Rittenreck) 6×9 SLR camera. Also used as bellows and enlarger lens – probably AKA Aetna Coligar.

Aetna Coligar 105/4.5

Japanese-made enlarger lens sometimes marked Aetna Optix. AKA Perfex, Prinz, Soligor, Ampex, etc.

Aetna Coligar 35/3.5
Japanese-made enlarger lens sometimes marked Aetna Optix. AKA Perfex, Prinz, Soligor, Ampex, etc. 30mm image circle.

Aetna Coligar 75/3.5

Japanese-made enlarger lens sometimes marked Aetna Optix. AKA Perfex, Prinz, Soligor, Ampex, etc.

Aetna Coligar 90/4.5

Japanese-made enlarger lens sometimes marked Aetna Optix. Silver mount and nose; black body and fascia. AKA Perfex, Prinz, Soligor, Ampex, etc.

AG Optical Trionar 152/3.5
Slide projector lens marked TDC Vivid 6” Anastigmat. Chrome/brass body.

Agfa 105,672/4.5
Agfa ‘M-Series’ lens of unknown application.

Agfa 8506 / 121
Fixed aperture varifocal lens fitted to MSC Series minilabs, optimised for 1.7-2.4x magnification.

Agfa 8506 / 122
Fixed aperture varifocal lens fitted to MSC Series minilabs, optimised for 2.3-3.1x magnification.

Agfa 8506 / 123
Fixed aperture varifocal lens fitted to MSC MiniLabs and optimised for 1.7-2.4x magnification.

Agfa 8508 / 370
Variable aperture printer controller lens for Agfa d-3 minilabs. Without close-up lens has 55mm front thread and weighs 427g. Focal length and aperture measured (unmarked).

Agfa Agolar 85/2.5
Slide projector lens with metal body (silver).

Agfa Agolon 90/2.5
Multicoated 35mm slide projector lens. Made in Germany.

Agfa Agomar 100/2.5
Slide projector lens. Silver body AKA Reflecta Agomar.

Agfa Agomar 150/2.8
Slide projector lens. Silver body. Black nose. AKA Reflecta Agomar.

Agfa Agomar 60/2.8
Slide projector lens. Silver body AKA Reflecta Agomar.

Agfa Agomar 70-120/2.8
Multicoated zoom projector lens

Agfa Agomar 85-150/4
Slide projector zoom lens. AKA Reflecta Agomar.

Agfa Agomar 85/2.5 [V1]
Silver metal barrel lens with black nose fitted to Agfa Opticus 35mm slide projectors. Single coated.

Agfa Agomar 85/2.5 [V2]
Silver metal barrel lens fitted to 1960s Agfa Diamator H and M 35mm slide projectors.

Agfa Agomar 85/2.8 [V1]
Slide projector lens with black plastic barrel fitted to 1960s Agfa CP44.

Agfa Agomar 85/2.8 [V2]
Slide projector lens fitted to Agfacolor 50, AKA Reflecta Agomar. Aperture unmarked (estimated).

The Alt.Lens Archive

QUICK-BROWSE CATALOGUE

Aetna Actinar 135/4.5German-made all-silver lens marked with red Double-H, distributed by Aetna Optix (later BKA) for Exakta bellows mount. Also fitted to Mirrorscope. Perhaps made by Steinheil.

Aetna Actinar 75/3.5Japanese-made zebra lens distributed by Aetna Optix (later BKA) originally as a wide angle for the Optika IIa (Rittreck) 6×9 SLR camera. See also Macro Actinar.

Aetna Coligar 25/3.5Japanese-made enlarger lens sometimes marked Aetna Optix. AKA Perfex, Prinz, Soligor, Ampex, etc. Sub-30mm image circle.

Aetna Coligar 50/3.5 [V1]Japanese-made enlarger lens sometimes marked Aetna Optix. Black body with red-dot aperture mark; silver nose and mount. AKA Perfex, Prinz, Soligor, Ampex, etc.

Aetna Coligar 50/3.5 [V2]Japanese-made enlarger lens sometimes marked Aetna Optix. AKA Perfex, Prinz, Soligor, Ampex, etc.

Aetna Macro Actinar 25/3.5 Japanese-made lens for Optika IIa (Rittenreck) 6×9 SLR camera. Also used as bellows and enlarger lens – probably AKA Aetna Coligar.

Aetna Macro Actinar 50/3.5 Japanese-made zebra lens for Optika IIa (Rittenreck) 6×9 SLR camera. Also used as bellows and enlarger lens – probably AKA Aetna Coligar.

Aetna Macro Actinar 75/4.5 Japanese-made zebra lens for Optika IIa (Rittenreck) 6×9 SLR camera. Also used as bellows and enlarger lens – probably AKA Aetna Coligar.

Aetna Macro Actinar 90/4.5 Japanese-made lens for Optika IIa (Rittenreck) 6×9 SLR camera. Also used as bellows and enlarger lens – probably AKA Aetna Coligar.

Aetna Coligar 105/4.5 Japanese-made enlarger lens sometimes marked Aetna Optix. AKA Perfex, Prinz, Soligor, Ampex, etc.

Aetna Coligar 35/3.5Japanese-made enlarger lens sometimes marked Aetna Optix. AKA Perfex, Prinz, Soligor, Ampex, etc. 30mm image circle.

Aetna Coligar 75/3.5 Japanese-made enlarger lens sometimes marked Aetna Optix. AKA Perfex, Prinz, Soligor, Ampex, etc.

Aetna Coligar 90/4.5 Japanese-made enlarger lens sometimes marked Aetna Optix. Silver mount and nose; black body and fascia. AKA Perfex, Prinz, Soligor, Ampex, etc.

AG Optical Trionar 152/3.5Slide projector lens marked TDC Vivid 6” Anastigmat. Chrome/brass body.

Agfa 105,672/4.5Agfa ‘M-Series’ lens of unknown application.

Agfa 8506 / 121Fixed aperture varifocal lens fitted to MSC Series minilabs, optimised for 1.7-2.4x magnification.

Agfa 8506 / 122Fixed aperture varifocal lens fitted to MSC Series minilabs, optimised for 2.3-3.1x magnification.

Agfa 8506 / 123Fixed aperture varifocal lens fitted to MSC MiniLabs and optimised for 1.7-2.4x magnification.

Agfa 8508 / 370Variable aperture printer controller lens for Agfa d-3 minilabs. Without close-up lens has 55mm front thread and weighs 427g. Focal length and aperture measured (unmarked).

Agfa Agolar 85/2.5Slide projector lens with metal body (silver).

Agfa Agolon 90/2.5Multicoated 35mm slide projector lens. Made in Germany.

Agfa Agomar 100/2.5Slide projector lens. Silver body AKA Reflecta Agomar.

Agfa Agomar 150/2.8Slide projector lens. Silver body. Black nose. AKA Reflecta Agomar.

Agfa Agomar 60/2.8Slide projector lens. Silver body AKA Reflecta Agomar.

Agfa Agomar 70-120/2.8Multicoated zoom projector lens

Agfa Agomar 85-150/4Slide projector zoom lens. AKA Reflecta Agomar.

Agfa Agomar 85/2.5 [V1]Silver metal barrel lens with black nose fitted to Agfa Opticus 35mm slide projectors. Single coated.

Agfa Agomar 85/2.5 [V2]Silver metal barrel lens fitted to 1960s Agfa Diamator H and M 35mm slide projectors.

Agfa Agomar 85/2.8 [V1]Slide projector lens with black plastic barrel fitted to 1960s Agfa CP44.

Agfa Agomar 85/2.8 [V2]Slide projector lens fitted to Agfacolor 50, AKA Reflecta Agomar. Aperture unmarked (estimated).

Aetna Actinar 135/4.5
German-made all-silver lens marked with red Double-H, distributed by Aetna Optix (later BKA) for Exakta bellows mount. Also fitted to Mirrorscope. Perhaps made by Steinheil.

Aetna Actinar 75/3.5
Japanese-made zebra lens distributed by Aetna Optix (later BKA) originally as a wide angle for the Optika IIa (Rittreck) 6×9 SLR camera. See also Macro Actinar.

Aetna Coligar 25/3.5
Japanese-made enlarger lens sometimes marked Aetna Optix. AKA Perfex, Prinz, Soligor, Ampex, etc. Sub-30mm image circle.

Aetna Coligar 50/3.5 [V1]
Japanese-made enlarger lens sometimes marked Aetna Optix. Black body with red-dot aperture mark; silver nose and mount. AKA Perfex, Prinz, Soligor, Ampex, etc.

Aetna Coligar 50/3.5 [V2]
Japanese-made enlarger lens sometimes marked Aetna Optix. AKA Perfex, Prinz, Soligor, Ampex, etc.

Aetna Macro Actinar 25/3.5

Japanese-made lens for Optika IIa (Rittenreck) 6×9 SLR camera. Also used as bellows and enlarger lens – probably AKA Aetna Coligar.

Aetna Macro Actinar 50/3.5

Japanese-made zebra lens for Optika IIa (Rittenreck) 6×9 SLR camera. Also used as bellows and enlarger lens – probably AKA Aetna Coligar.

Aetna Macro Actinar 75/4.5

Japanese-made zebra lens for Optika IIa (Rittenreck) 6×9 SLR camera. Also used as bellows and enlarger lens – probably AKA Aetna Coligar.

Aetna Macro Actinar 90/4.5

Japanese-made lens for Optika IIa (Rittenreck) 6×9 SLR camera. Also used as bellows and enlarger lens – probably AKA Aetna Coligar.

Aetna Coligar 105/4.5

Japanese-made enlarger lens sometimes marked Aetna Optix. AKA Perfex, Prinz, Soligor, Ampex, etc.

Aetna Coligar 35/3.5
Japanese-made enlarger lens sometimes marked Aetna Optix. AKA Perfex, Prinz, Soligor, Ampex, etc. 30mm image circle.

Aetna Coligar 75/3.5

Japanese-made enlarger lens sometimes marked Aetna Optix. AKA Perfex, Prinz, Soligor, Ampex, etc.

Aetna Coligar 90/4.5

Japanese-made enlarger lens sometimes marked Aetna Optix. Silver mount and nose; black body and fascia. AKA Perfex, Prinz, Soligor, Ampex, etc.

AG Optical Trionar 152/3.5
Slide projector lens marked TDC Vivid 6” Anastigmat. Chrome/brass body.

Agfa 105,672/4.5
Agfa ‘M-Series’ lens of unknown application.

Agfa 8506 / 121
Fixed aperture varifocal lens fitted to MSC Series minilabs, optimised for 1.7-2.4x magnification.

Agfa 8506 / 122
Fixed aperture varifocal lens fitted to MSC Series minilabs, optimised for 2.3-3.1x magnification.

Agfa 8506 / 123
Fixed aperture varifocal lens fitted to MSC MiniLabs and optimised for 1.7-2.4x magnification.

Agfa 8508 / 370
Variable aperture printer controller lens for Agfa d-3 minilabs. Without close-up lens has 55mm front thread and weighs 427g. Focal length and aperture measured (unmarked).

Agfa Agolar 85/2.5
Slide projector lens with metal body (silver).

Agfa Agolon 90/2.5
Multicoated 35mm slide projector lens. Made in Germany.

Agfa Agomar 100/2.5
Slide projector lens. Silver body AKA Reflecta Agomar.

Agfa Agomar 150/2.8
Slide projector lens. Silver body. Black nose. AKA Reflecta Agomar.

Agfa Agomar 60/2.8
Slide projector lens. Silver body AKA Reflecta Agomar.

Agfa Agomar 70-120/2.8
Multicoated zoom projector lens

Agfa Agomar 85-150/4
Slide projector zoom lens. AKA Reflecta Agomar.

Agfa Agomar 85/2.5 [V1]
Silver metal barrel lens with black nose fitted to Agfa Opticus 35mm slide projectors. Single coated.

Agfa Agomar 85/2.5 [V2]
Silver metal barrel lens fitted to 1960s Agfa Diamator H and M 35mm slide projectors.

Agfa Agomar 85/2.8 [V1]
Slide projector lens with black plastic barrel fitted to 1960s Agfa CP44.

Agfa Agomar 85/2.8 [V2]
Slide projector lens fitted to Agfacolor 50, AKA Reflecta Agomar. Aperture unmarked (estimated).