Tokyo Kogaku Topcor 50mm F/3.5 Tessar Type LSM
Standard prime lens • Film era • Discontinued
- Announced:
- · 1955
- Production status:
- ● Discontinued
- Country of design:
- · Japan
- Original name:
- · Tokyo Kogaku Topcor I:3,5 f=5cm
- Class:
- · Slow full-frame standard prime lens
- System:
- · Leotax (1938)
Model history (3)
| ■Tokyo Optical [C.] Simlar 50mm F/3.5 LSM • Collapsible akaTokyo Optical State 50mm F/3.5 LSM | M | 4 - 3 | 3.5 ft. | A36 | 1946 ● | |
| ■Tokyo Optical Topcor 50mm F/3.5 Elmar Type LSM • Collapsible | M | 4 - 3 | 3.5 ft. | A36 | 1954 ● | |
| ■Tokyo Kogaku Topcor 50mm F/3.5 Tessar Type LSM • Collapsible | M | 4 - 3 | 3.5 ft. | A36 | 1955 ● | |
Specification
| Optical design: | |
| 35mm full frame | |
| 50mm | |
| F/3.5 | |
| 4 elements in 3 groups (Tessar) | |
| Leica screw mount | |
| 46.8° (35mm full frame) | |
| Diaphragm mechanism: | |
Diaphragm type: | Manual |
Aperture control: | Aperture ring |
| 10 (ten) | |
| Focusing: | |
Coupled to the rangefinder: | Yes |
| 3.5 ft. (~1.05m) | |
Focusing modes: | Manual focus only |
Manual focus control: | Focusing lever |
| Physical characteristics: | |
| <No data> | |
| <No data> | |
| Accessories: | |
| Slip-on 36mm | |
| Clamp-on round with set screw |
Source of data
- Leotax F brochure.
Manufacturer description
A widely-acclaimed Tessar-type lens, capable of producing a sharp image in all subjects and particularly suited for color photography.
From the editor
Standard lens for Leotax F and T cameras. Can be distinguished from the earlier Elmar type by the aperture ring instead of the dial-set ring at the front of the lens and the minimum aperture of F/22.
Other standard prime lenses in the Leotax system
| ■Leica screw mount (13) | |||||||||
| Tokyo Optical [C.] Simlar 50mm F/3.5 LSM • Collapsible akaTokyo Optical State 50mm F/3.5 LSM | M | 4 - 3 | 3.5 ft. | A36 | 1946 ● | ||||
| Tokyo Optical Topcor 50mm F/3.5 Elmar Type LSM • Collapsible | M | 4 - 3 | 3.5 ft. | A36 | 1954 ● | ||||
| Tokyo Kogaku Topcor 50mm F/3.5 Tessar Type LSM | M | 4 - 3 | 3.5 ft. | ⌀34 | 1955 ● | ||||
| Tokyo Kogaku Topcor 50mm F/3.5 Elmar Type LSM | M | 4 - 3 | 3.5 ft. | ⌀34 | 1955 ● | ||||
| Fuji Photo Film Fujinon L 50mm F/2.8 LSM | M | 5 - ? | 1.00m | ⌀40.5 | 1957 ● | ||||
| Tokyo Kogaku Topcor 50mm F/2.8 LSM | M | 5 - 3 | 3.5 ft. | ⌀34 | 1958 ● | ||||
| Tokyo Kogaku Topcor 50mm F/2 LSM | M | 6 - 5 | 3.5 ft. | ⌀40 | 1954 ● | ||||
| Fuji Photo Film Fujinon L 50mm F/2 LSM | M | 6 - ? | 1.00m | ⌀43 | 1957 ● | ||||
| Tokyo Kogaku Topcor-S 50mm F/2 Type 1 LSM | M | 6 - 4 | 3.5 ft. | ⌀40.5 | 1957 ● | ||||
| Tokyo Kogaku Topcor-S 50mm F/2 "Panda" LSM | M | 6 - 4 | 1.00m | ⌀40.5 | 1957 ● | ||||
| Tokyo Kogaku Topcor-S 50mm F/2 Type 2 LSM | M | 6 - 4 | 1.00m | ⌀40.5 | 1958 ● | ||||
| Tokyo Optical Simlar 50mm F/1.5 LSM | M | 7 - 4 | 3.5 ft. | ⌀40 | 1950 ● | ||||
| Tokyo Optical Topcor 50mm F/1.5 LSM | M | 7 - 4 | 3.5 ft. | ⌀40 | 1954 ● | ||||
Lenses with similar focal length
| ■Leica screw mount (23) | |||||||||
| Serenar / Canon 50mm F/3.5 [II] LSM • Collapsible | M | 4 - 3 | 1.00m | S.VI | 1952 ● | ||||
| Cosina Voigtlander Heliar 50mm F/3.5 LSM "Heliar 101 Years Limited Edition" (2000 units) • Collapsible | M | 5 - 3 | 1.00m | ⌀27 | 2001 ● | ||||
| Cosina Voigtlander Heliar 50mm F/3.5 LSM "Cosina 50th Anniversary, Bessa 10th Anniversary" (600 units) • Collapsible | M | 5 - 3 | 1.00m | ⌀27 | 2009 ● | ||||
| Konishiroku Hexar 50mm F/3.5 LSM • Collapsible | M | 4 - 3 | 3.5 ft. | A36 | 1955 ● | ||||
| Leitz Elmar 50mm F/3.5 [I] [ELMAR, ELMARKUP, ELMARCHROM] • Collapsible | M | 4 - 3 | 1.00m | A36 | 1930 ● | ||||
| Leitz Elmar 50mm F/3.5 [II] [ELMAR] • Collapsible | M | 4 - 3 | 1.00m | A36 | 1951 ● | ||||
| Leitz Wetzlar Elmar 50mm F/3.5 [III] [ELMAR / 11010] • Collapsible | M | 4 - 3 | 1.00m | E39 | 1954 ● | ||||
| MS Optics MS-Mode-AH Apoqualia 50mm F/3.5 LSM • Collapsible | M | 5 - 3 | 1.00m | ⌀30.5 | 2009 ● | ||||
| Nippon Kogaku Nikkor-Q·C 50mm F/3.5 LSM | M | 4 - 3 | 1.5 ft. | ⌀34.5 | 1950 ● | ||||
| Nippon Kogaku Nikkor-Q[·C] 50mm F/3.5 LSM • Collapsible | M | 4 - 3 | 3.5 ft. | A36 | 1945 ● | ||||
| Industar-50 50mm F/3.5 LSM akaИНДУСТАР-50 50mm F/3.5 [П] | M | 4 - 3 | 1.00m | ⌀33 | ● | ||||
| Industar-50 50mm F/3.5 LSM • Collapsible akaИНДУСТАР-50 50mm F/3.5 [П] | M | 4 - 3 | 1.00m | ⌀33 | 1953 ● | ||||
| Industar-22 50mm F/3.5 LSM • Collapsible akaИНДУСТАР-22 50mm F/3.5 [П] [МОСКВА / ЗОРКИЙ] | M | 4 - 3 | 1.00m | -- | 1948 ● | ||||
| Industar-22 50mm F/3.5 LSM akaИНДУСТАР-22 50mm F/3.5 П | M | 4 - 3 | 1.00m | ● | |||||
| FED 50mm F/3.5 LSM • Collapsible akaФЭД 50mm F/3.5 | M | 4 - 3 | 1.00m | A36 | ● | ||||
| FED 50mm F/3.5 LSM "Industar-10" • Collapsible akaИндустар-10 50mm F/3.5 akaФЭД 50mm F/3.5 | M | 4 - 3 | 1.00m | A36 | ● | ||||
| FED 50mm F/3.5 Close Focus LSM • Collapsible akaФЭД 50mm F/3.5 | M | 4 - 3 | 0.50m | A36 | ● | ||||
| Tanaka Kogaku Tanar 50mm F/3.5 LSM • Collapsible | M | 4 - 3 | 3.5 ft. | 1952 ● | |||||
| Tanaka Kogaku Tanar 50mm F/3.5 LSM | M | 4 - 3 | 3.5 ft. | 1954 ● | |||||
| Tanaka Kogaku Tanar 50mm F/3.5 H.C. Close Focus LSM | M | 4 - 3 | 1.5 ft. | 1955 ● | |||||
| Tanaka Kogaku Tanar 50mm F/3.5 H.C. Close Focus LSM Black | M | 4 - 3 | 1.5 ft. | 1957 ● | |||||
| Nicca-L·C 50mm F/3.5 LSM • Collapsible | M | 4 - 3 | 3.5 ft. | 1949 ● | |||||
| Lena-Q·C 50mm F/3.5 LSM • Collapsible akaReise-Q·C 50mm F/3.5 LSM | M | 4 - 3 | 3.5 ft. | 1954 ● | |||||