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Mission:
This database was created to help people to find information about special large format (big diameter) objective lenses, achromatic and apochromatic (APO) doublets, triplets, and quadruplets, which are not just condensors, having relatively fast focal ratios. These giant lenses can be effectively used in extremely fast telescopes (with relatively small magnifications) in huge binoculars, and TV/HDTV movie projectors. The original function of these very big optics usually used to be projection lenses utilized mainly in episcopes (epidiascope, or episkop).
The images and the data are mainly gathered from ebay (www.ebay.de, photo.ebay.de, photography.ebay.com, www.ebay.ca, www.ebay.co.uk, www.ebay.it.) Unfortunately, on eBay the images and the data are kept only for a limited time. That's the main reason why my site was set up. I don't know how long the links that are given below will be alive, but anyway, you can use them as a starting point. On this site I provide separate links to every given lens, so you can show exactly to anybody what kind of lens are you looking for, or plan to use for your project.
My lens image and data collection has more than a thousand photographs in more than 150 Mbytes - and is growing day after day.


Link to this lens: Kodak_Wide_Field_Copying_D29mm_F16_f457mm_01
Kodak Wide Field Copying D29mm F16 f457mm 01 Kodak Wide Field Copying D29mm F16 f457mm 02 Kodak Wide Field Copying D29mm F16 f457mm 03 Kodak Wide Field Copying D29mm F16 f457mm 04

D=29 mm


Manufactured by: Kodak (made in U.S.A.)
Type: Wide Field Copying lens, RS170
Diameter: 29 mm
F/D ratio: F16
Focal length: 457 mm
Length:
Mass:
Serial N:
Found: at eBay
Owner: aerozeiss2 at eBay


Link to this lens: Goerz_Optical_Apochromat_Artar_D29mm_F9.5_f273mm_01
Goerz Optical Apochromat Artar D29mm F9.5 f273mm 01 Goerz Optical Apochromat Artar D29mm F9.5 f273mm 02 Goerz Optical Apochromat Artar D29mm F9.5 f273mm 03 Goerz Optical Apochromat Artar D29mm F9.5 f273mm 04 Goerz Optical Apochromat Artar D29mm F9.5 f273mm 05 Goerz Optical Apochromat Artar D29mm F9.5 f273mm 06 Goerz Optical Apochromat Artar D29mm F9.5 f273mm 07 Goerz Optical Apochromat Artar D29mm F9.5 f273mm 08 Goerz Optical Apochromat Artar D29mm F9.5 f273mm 09 Goerz Optical Apochromat Artar D29mm F9.5 f273mm 0a Goerz Optical Apochromat Artar D29mm F9.5 f273mm 0b Goerz Optical Apochromat Artar D29mm F9.5 f273mm 0c Goerz Optical Apochromat Artar D29mm F9.5 f273mm 0d Goerz Optical Apochromat Artar D29mm F9.5 f273mm 0e Goerz Optical Apochromat Artar D29mm F9.5 f273mm 0f Goerz Optical Apochromat Artar D29mm F9.5 f273mm 0g Goerz Optical Apochromat Artar D29mm F9.5 f273mm 0h

D=29 mm


Manufactured by: C.P. Goerz American Optical Co. (New York, made in U.S.A.)
Type: Apochromat Artar (for photo)
Diameter: 29 mm
F/D ratio: F9.5
Focal length: 10 3/4 in (=273 mm)
Length:
Mass:
Serial N:#777530
Found: at eBay
Owner: gokevincameras at eBay


Link to this lens: Schneider-Krauznach_Xenon_D26mm_F0.95_f25mm_01
Schneider-Krauznach Xenon D26mm F0.95 f25mm 01 Schneider-Krauznach Xenon D26mm F0.95 f25mm 02 Schneider-Krauznach Xenon D26mm F0.95 f25mm 03

D=26 mm


Manufactured by: Schneider-Krauzenach (made in Germany)
Type: Xenon, superfast
Diameter: 26 mm
F/D ratio: F0.95-F30
Focal length: 25 mm
Length:
Mass:
Serial N:
Found: at eBay
Owner: mirart12 at eBay


Link to this lens: Wray_London_APO_Process_Lustar_D25mm_F8_f203mm_01
Wray London APO Process Lustar D25mm F8 f203mm 01 Wray London APO Process Lustar D25mm F8 f203mm 02 Wray London APO Process Lustar D25mm F8 f203mm 03

D=25 mm


Manufactured by: Wray London (made in UK)
Type: APO Process Lustar
Diameter: 25 mm
F/D ratio: F8
Focal length: 25 mm
Length:
Mass:
Serial N:
Found: at eBay
Owner: oddog2 at eBay


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