Konica Hexanon AR 21mm F/2.8
Ultra-wide angle prime lens • Film era • Discontinued
- Announced:
- · 1979
- Production status:
- ● Discontinued
- Country of design:
- · Japan
- Original name:
- · KONICA HEXANON AR 21mm F2.8
- Class:
- · Fast full-frame ultra-wide angle prime lens
- · Professional model
- System:
- · Konica AR (1965)
Specification
| Optical design: | |
| 35mm full frame | |
| 21mm | |
| F/2.8 | |
| 9 elements in 8 groups | |
| Konica AR [40.5mm] | |
| 91.7° (35mm full frame) | |
| Diaphragm mechanism: | |
Diaphragm type: | Automatic |
Aperture control: | Aperture ring (Manual settings + Auto Exposure setting) |
| 6 (six) | |
| Focusing: | |
| 0.20m | |
| <No data> | |
Focusing modes: | Manual focus only |
Manual focus control: | Focusing ring |
| Physical characteristics: | |
| 215g | |
| ⌀63×39mm | |
| Accessories: | |
| Screw-type 55mm | |
| 57mm - Clamp-on round | |
| Not compatible |
Sources of data
- Konica Hexanon AR interchangeable lenses booklet.
- Konica Autoreflex TC instruction booklet.
- Konica FP-1 Program instructions.
- Konica FS-1 instructions.
- Konica FT-1 Motor instructions.
- Konica TC-X instructions.
- Konica Hexanon Lenses booklet (1980).
Manufacturer description
Key Features:
- Ideally suited for architectural applications as well as restricted area interior shots.
- Compact design permits use of 55mm filters. Only 1.5" long and weighing only 7.6 ounces.
- Fully automatic exposure control with open aperture, thru-the-Iens (TTL) metering. Positive "AE Lock" prevents unintentional switching to manual operation.
- Manual operation with positive click stops at full apertures.
- Konlca Color Dynamic Coating reduces flare and increases contrast and color saturation throughout the visible spectrum.
Other ultra-wide angle prime lenses in the Konica AR system
| ■Konica AR mount (1) | |||||||||
| Konica Hexanon [AR] 21mm F/4 | A | 11 - 7 | 0.20m | ⌀77 | 1965 ● | ||||