|image by Tim Shoebridge (Image rights)|
The Horseman ER-1 is a 6x9 format technical/field/press camera which takes roll film in interchangeable backs, introduced at the 1984 Photokina, and released 21 April 1986 in Japan. It was sold by Komamura and manufactured by Tokyo Kogaku,
The Horseman ER-1 allows movements/adjustments to correct for various distortions and to control the plane of sharp focus. Being a field camera, it is similar to a view camera but more compact and with fewer adjustments. In common with many press cameras it has a viewfinder and rangefinder to allow handheld use.
Notable changes from the Horseman VH-R include a removable zoom viewfinder (65-300mm) and the ER (Electro-Remote) monitoring system. The monitoring system is located in the ER-grip and requires an ER roll film holder and ER lens to work. The system will indicate if the film needs winding and if the dark slide has been removed. The battery holder for the ER-grip is the same as for the Topcon Super DM winder. If users really demanded such a system, is unclear, however it seems the intention of the ER-system was to lower the threshold for purchasing a technical camera, often thought to be difficult to handle and easy to fail at operating. Some sources state that the camera ceased production due to the supply of the electronic components being discontinued.
|Rangefinder||Rangefinder coupling range||Camera bed drop||Lens standard movements||Camera back movements||Revolving back system||Track extension||Bellows extension||Dimensions||Weight|
|Cam coupling double image coincidence type (Base = 70mm, Ratio = 1:1).||
||145 x 152 x 96 mm when folded.||
A new seven-lens lineup was introduced with the ER-1 camera. All ER lenses feature "Hard Multi Coating", and are rangefinder coupled with the correct rangefinder cam. The ER lenses are mounted on special 80mm Horseman lensboards with built in micro-solenoids and contacts for interfacing with the ER-monitoring system.
|Lens||Lens construction||Image circle||Filter diameter||Front diameter||Rear diameter||Flange focal distance||Overall length||Weight|
|ER 65mm f7||6 elements in 4 groups, Biogon type||152mm (f22), 120mm (f7)||40.5mm||42mm||39.5mm||70.6mm||55.8mm||300g|
|ER 75mm f5.6||6 elements in 4 groups, Orthometar type||120mm (f22), 100mm (f5.6)||40.5mm||42mm||31mm||73.7mm||37.9mm||230g|
|ER 90mm f5.6||6 elements in 4 groups||150mm (f22), 130mm (f5.6)||40.5mm||42mm||39.5mm||88.6mm||39.5mm||230g|
|ER 105mm f5.6||6 elements in 4 groups||160mm (f22), 140mm (f5.6)||43mm||45mm||48mm||104.2mm||47.5mm||260g|
|ER 120mm f5.6||6 elements in 4 groups, Orthometar type||160mm (f22), 160mm (f5.6)||40.5mm||42mm||51mm||121.3mm||49.8mm||290g|
|ER 150mm f5.6||4 elements in 3 groups, Tessar type||160mm (f22), 140mm (f5.6)||40.5mm||42mm||31mm||144.4mm||41.5mm||250g|
|ER 180mm f5.6||4 elements in 4 groups||140mm (f22), 100mm (f5.6)||52mm||54mm||39.5mm||124.9mm||74.5mm||330g|
- ER grip, 280g
- ER Roll Film Holder 6x7 and 6x9, 450g
- Universal Zoom Finder, 280g