|Zenza Bronica ERTSi|
The ETR-Si, introduced in October 1989, is an improved version of the ETR-S.
Compatibility between all previous accessories is nearly 100%.
|Zenza Bronica ERTSi Specifications|
|Type||4.5x6cm format lens shutter single lens reflex camera, w/interchangeable lens, film back, finder and focusing screen systems.|
|Frame Size||42.5x55.1mm (side/length ratio of 1:1.29 closely matches standard paper and reproduction sizes)|
|Film||120 roll film (15 exposures); 220 roll film (30 exposures); 135 cartridge-loaded film; and Polaroid Land pack film. (Exclusive film backs for each film type.)|
|Standard Lens||Zenzanon-PE 75mm F/2.8 lens, interchangeable type; 6 elements in 5 groups; multi-layer anti-reflection coated; 49.7° angle of view; F22 minimum aperture; 60cm minimum focusing distance; and helical focusing.|
|Filter Size||ø62mm diameter for PE 40-250mm lenses, ø95mm for EII 500mm lens and PE 100-220mm lens, 122mm for PE 500mm lens, and 32.5mm for PE 30mm lens fisheye.|
|Lens Mount||Exclusive four claw Bronica ETR bayonet mount.|
|Lens Diaphragm||Fully automatic instant reopening diaphragm action; equal-distance aperture scale graduations; depth of field previewing.|
|Shutter||Electronic control SEIKO #0 between-lens leaf shutter; shutter speeds 8 to 1/500 sec. plus B (bulbs) and T (time); intermediate settings not possible; mechanical control setting of 1/500 sec.|
|Film Winding||Film winding crank; one complete forward revolution or ratcheted winding action.|
|Mirror Lock Up||Possible with mirror lock-up lever.|
|Multiple Exposure||Possible with multiple exposure lever; red warning sign in finder.|
|Film Back||Daylight loading interchangeable type; exclusive film backs for 120, 220 and 135 roll films and Polaroid Land pack film.|
|Finder System||Interchangeable finder system; 94% of actual field of view (remains unchanged with different finders); choice of five optional finders, or Waist-Level Finder E, AE-III Prism Finder E, AE-II Finder E, Rotary Finder E and Prism Finder E.|
|Focusing Screen||Interchangeable type; standard screen has matte spot.|
|Flash Synchronization||X-setting (up to 1/500 sec.); auto-flash control based on direct light measurements at the film plane are possible with optional SCA System Adapter.|
|Battery Checking||Red-colored LED lights up within screen area when battery check button is depressed, if there is sufficient power; also doubles as shutter closing signal.|
|Battery||Single 6-volt silver oxide or alkaline-manganese battery; also powers AE-II Prism Finder E and AE-III Prism Finder E, when attached.|
|Dimensions||92(W) x 87(H) x 69(L)mm (ETRSi main body only), 92(W) x 107(H) x 165(L)mm (with standard lens, Film Back Ei 120 and Waist-Level Finder E)|
|Weight||480 grams (ETR-Si main body only; without battery) 1,285 grams (with standard lens, Film Back Ei 120 and Waist-Level Finder E; without battery.)|
Zenza Bronica uses
Zenzanon PE lenses, based on the original design technology of the
Zenzanon-PG lenses and the Zenzanon-PS lenses of the SQ-Ai, which
are already noted as being among the sharpest in the world.
|There is complete
finder interchangeability to match requirements for a wide range of
image expressions, such as waist-level or eye-level view focusing,
including low angle shots. And, the eye-level view-focusing AE - III
Prism finder E makes possible TTL - metered aperture priority AE
shots with a choice of spot metering or average metering, thus
making possible very faithful presentations as well as increasing
the handling ease of the ETR-Si. The AE viewfinders are powered by
the internal battery of the ETR-Si. So not switching off the
viewfinder after use will drain the battery completely in a short
The rotary viewfinder is an ideal tool for making portrait size pictures.
AE III AE II
The difference between the AEII and the AE III is that the AE III beside AE with aperture priority also has the spot meter function and has a adjustable eye-piece system with step less adjustment from -2.5 to +0.5 diopter. The AE III has a LCD read-out display.
The focusing screen
can be replaced by a screen that suits the photographer the most for
the current job. * screens are available and can be interchanged on
the basis of the lens, film back or picture taking conditions. When
cleaning the Focusing screen be careful because the surface of the
screens can easily be damaged.
The ETRSi has different film backs,
for the 4.6 x 6, 135-N; 24 x 36, 135-W 24 x 54 and the Polaroid
A Polaroid back is
available for use with the ETRSi but merely for testing the scene or
to determine the exposure than for actually taking pictures this
because of the poor quality of the picture in most cases.
Also 2 135 film backs
are available. These backs accept standard 135 film cartridges
making it possible to use 135 film on the ETRSi. The 135-N has the
standard Leica frame format from 24 x 36 mm and the 135-W has a
panoramic size from 24 x 54 mm.
The film backs have a
number of controls in the form of a small pin. The pin close to the
transport gear is activated by the camera during the exposure to
enable the film transport for the next exposure. The pin close to
the dark slide tells the camera the dark slide is in or not. Newer
film backs for the ETRSi as have a small slit in the dark slide and
an small lever in the film back to lock the dark slide in the film
back as long as the back is not mounted on a camera.
Some Bronica camera's
are equipped with TTL measurement (Trough The Lens) for flash. This
actually a OTF ( off the film plane) measurement because the light
reflected by the film is measured. Only the camera's with an i
version; the ETRSI and the SQ-Ai are equipped with this sensor.
The SCA386 adapter made by Bronica special for Metz flash units
Metz G15 Power Grip
|Left, The OTF sensor in
the body of the ETRSi camera
There is a difference between TTL and OTF metering. With TTL the object is measured by a sensor inside the camera and by the values measured the exposure of the film is calculated and controlled. OTF measurement however measure the reflected light of the film plane. Depending of the varying properties of the film itself (color of the surface, reflecting properties) there will be a difference in metering. Some manufacturers of films supply information about this matter but the best way is to shoot one or more test films. With changing the ISO setting on the SCA 386 adapter influence can be obtained on the exposure of the film.
(Manual G15 downloaden)
|Overview of Metz flash units compatible for the ETRSi / SQ-Ai|
|Met SCA 386 adapter EN SCA 300 E adapter|
|28 CT-5, 30 TTL-1(i), 32 CT-2, 32 CT-3(i), 32 CT-7, 36 CT-2, 36 CT-3, 32 Z-2, 32 MZ-3, 40 MZ-1,40 MZ-2, 40 MZ-3, 50 MZ-5, 40 MZ1i, 40 MZ-3i|
|Met SCA 386 adapter EN PowerGrip G15|
|28 CT-5, 30 TTL-1(i), 32 CT-3(i), 32 CT-7, 36 CT-3|
|Met SCA 386 adapter|
|32 CT-4, 32 CT-8, 45 CT-3, 45 CL-3, 45 CT-4 ( na ser.nr 205180), 45 CL-4, 60 CT-4|
|Important: Information is retrieved from Metz documentation. Myphotoweb is not responsible for any inconsistencies and should not be held liable. Always check the manufacturer manuals.|