![]() With hood mounted | |
Maker | Minolta |
---|---|
Technical data | |
Focal length | 18mm |
Aperture (max/min) | f/9.5-f/22 |
Close focus distance | fixed |
Construction | 7 elements in 5 groups |
Features | |
Ultrasonic motor | ![]() |
Macro capable | ![]() |
Unique features | Fisheye |
Physical | |
Max. length | 41 mm (1.6 in) |
Diameter | 59 mm (2.3 in) |
Weight | 230 g (8.1 oz) |
Filter diameter | Rear |
Accessories | |
Lens hood | Bayonet Flower |
Angle of view | |
Diagonal | 180° |
History | |
Introduction | 1966 |
Discontinuation | 1969 |
Successor | Fish-Eye Rokkor 16mm f/2.8 |
The UW Rokkor 18mm f/9.5 is a prime fisheye lens produced by Minolta for Minolta SR-mount single lens reflex cameras, introduced in 1966 as the system's first fisheye lens. It is a full-frame fisheye lens with a 180° viewing angle across the diagonal, and was replaced when the Minolta Fish-Eye Rokkor 16mm f/2.8 lens was released in 1969.
Unlike most contemporary fisheye lenses from other camera manufacturers, the UW Rokkor-PG did not require the reflex mirror to be locked up, so the SLR viewfinder could be used. It is a fixed-focus, manual diaphgram lens; the only control on the lens is the aperture, which may be set between f/9.5 and 22. The flower hood is mounted via the same internal quarter-turn bayonet used to secure the front lens cap.
In 1968, the suggested retail price was US$159.50 (equivalent to $1,397 in 2023), including case. [1]
Due to the extreme angle of view, the front of the lens does not have a mount for filters; threaded filters attach to the rear of the lens. The lens was provided with UV and yellow (Y48) filters. [2] Later, a red filter was available separately. [1] Although corporate literature describes it as a 6-element, 4-group lens, the suffix (-PG) indicates it is a 7-element, 5-group lens, meaning the filter is considered part of the optical design. [2]
![]() With hood mounted | |
Maker | Minolta |
---|---|
Technical data | |
Focal length | 18mm |
Aperture (max/min) | f/9.5-f/22 |
Close focus distance | fixed |
Construction | 7 elements in 5 groups |
Features | |
Ultrasonic motor | ![]() |
Macro capable | ![]() |
Unique features | Fisheye |
Physical | |
Max. length | 41 mm (1.6 in) |
Diameter | 59 mm (2.3 in) |
Weight | 230 g (8.1 oz) |
Filter diameter | Rear |
Accessories | |
Lens hood | Bayonet Flower |
Angle of view | |
Diagonal | 180° |
History | |
Introduction | 1966 |
Discontinuation | 1969 |
Successor | Fish-Eye Rokkor 16mm f/2.8 |
The UW Rokkor 18mm f/9.5 is a prime fisheye lens produced by Minolta for Minolta SR-mount single lens reflex cameras, introduced in 1966 as the system's first fisheye lens. It is a full-frame fisheye lens with a 180° viewing angle across the diagonal, and was replaced when the Minolta Fish-Eye Rokkor 16mm f/2.8 lens was released in 1969.
Unlike most contemporary fisheye lenses from other camera manufacturers, the UW Rokkor-PG did not require the reflex mirror to be locked up, so the SLR viewfinder could be used. It is a fixed-focus, manual diaphgram lens; the only control on the lens is the aperture, which may be set between f/9.5 and 22. The flower hood is mounted via the same internal quarter-turn bayonet used to secure the front lens cap.
In 1968, the suggested retail price was US$159.50 (equivalent to $1,397 in 2023), including case. [1]
Due to the extreme angle of view, the front of the lens does not have a mount for filters; threaded filters attach to the rear of the lens. The lens was provided with UV and yellow (Y48) filters. [2] Later, a red filter was available separately. [1] Although corporate literature describes it as a 6-element, 4-group lens, the suffix (-PG) indicates it is a 7-element, 5-group lens, meaning the filter is considered part of the optical design. [2]