| Praktica
BY60 design sample - labelled BY20 |
| Producer data |
| Producer |
VEB
Pentacon Dresden Betrieb des Kombinates VEB Carl Zeiss Jena |
responsible constructor |
Dr. Jehmlich/ Dipl.-Ing.
Schultzki |
| construction period |
November 1989 - June 1990
(March 1991) |
no of produced cameras |
3 (?) design models |
| Technical properties of the camera |
| shutter type
(planned)
|
|
exposure time
(planned) |
B to 1/2000s
 | 4 exposure programs |
| 4 AF-programs |
| 5 time based programs |
|
| view finder
(planned)
|
fixed eye-level view finder
(Pentaprism)
with field lens, multicoloured LED-Array for program status signalling (left side of the
view-finder image) changes their brightness with brightness of the image |
mirror
(planned)
|
instant-return mirror using
electric motor |
| film transport / frame counter
(planned)
|
integrated motor winder with
maximum speed of 1,5 pitures/s, auto-zeroing electronic frame counter in
the LCD-monitor, automatic motorized film insertion |
lens mount
(planned)
|
new mount system with EDC (electronic diaphragm control)
as well as autofocus control inside lens |
| self timer
(planned)
|
electronically, approx. 10 sec
delay |
battery
(planned)
|
2CR5 |
| metering system
(planned)
|
TTL-metering
(for automatic film speed entry via DX cartridges) using electronic diaphragm
control (EDC) for measurement with open aperture using a Silicon photo-sensor,
auto exposure compensation, TTL-flash system, automatic exposure system with
memory key, battery check facilities |
flash system
(planned)
|
X-synchronisation (automatically
adapted with fixed time of 1/125s for mini-flash system), accessory shoe at the top of the
pentaprism, flash auto exposure system with |
| flash indication
(planned)
|
yes |
aperture reflection into view finder
(planned)
|
yes |
| general comments |
| design model based on concept study for Praktica BY60 AF2 labelled as
BY 20 according to the R&D-plan 117 (begin 11/1989 (step A1), planned
end 08/1991 (step A4)) |
| with wide angle lens model Prakticar 2.8/28 |
| the development of these camera was cancelled in June 1990 because
the resources were not available at the GDR industry with a loss of
23.000.000 M |
|
| collection data |
| Hummel-No |
300* |
Kadlubek-No. |
none |
| body no. |
none |
lens no. |
none |
| lens type |
Prakticar 2.8/50mm |
purchase price |
* € |
| advertising |
|
manual |
|
|
|
