ETRS Januari 1979

January 1979 the ETR-S was released, some trhree years after the ETR. Experiences with the ETR result eventually in a new version with actually minor differences in the design of the 2 models
 

locking pin (attachment rod) of the winding crank has slightly changed. Attachment of the neck strap changed to eye-shape ring and the type number plate is gone

Some changes here in the lens release button. The difficult to handle release lock is changed in one more easy to work with. The metal contacts for the lens connection are now gold plated

Of coarse the neck strap connection on this side has changed also. The accessory socket is gone and the type number plate has come is in place.

No visual changes

The exposure time knob has now a blocking at the 1/500 sec position, with the ETR it was possible to turn the knob completely. The battery check lamp has been moved to the inside of the viewer area underneath the viewing glass. Therefore the ETR-S viewing glass has now a small window. The contacts for the AE viewer are now gold plated and become a little bigger in diameter

The battery compartment has now a small white line and the base plate has a pattern of little dents.

In total, not really a lot of important changes except for the lens release knob. This is an advantage because with the ETR is was not easy to interchange the lens by using one hand.

The manual also has some changes; The ETR manual mentioned only a 120 back but with The ETR-S we see the 120, 220, 135 and also the Polaroid back. The standard lens is now the Zenzanon EII 75 F2.8 instead of the Zenzanon E 75 F2. The filter size of the standard lens has changed from 58 mm to 62 mm in fact this is the size for all the lenses in the range from 40 mm to 250 mm. Also more finders are now mentioned, the waist-level finder E, AE-II finder, Rotary finder, prism finder and the sports finder. Standard no finder is supplied with the body and has to be ordered separately.

Internal some changes are made for the shutter release button

- 1 everything is locked. The shutter locking Collar has now 3 positions before 2 (on / off)
- 2 The camera release button is locked but the speed grip and the motor drive can fire
- 3 everything can fire

With the AE II prism finder, the display can now also be activated by pressing the exposure button partially

The number of lenses available is further expanded with the 500 mm F:8 tele and the relatively compact 200 mm F:4.5 as an alternative for the standard lens, the 105 mm F:3.5 is now also available

At the beginning of the release of the ETRS the range of accessories available are not so much so the photographer uses the ETR accessories instead. This can really be seen on the diagram of available parts in the manual

For special occasions some special releases are brought out, we see the model ETRS SF Limited on the  market where SF stands for Safari. All the parts, the camera, the standard lens, the prism finder AE-II and the speed grip they all have the same green color. later on also the waist-level finder, the professional lens hood and the tele 5.6 / 250 mm are also made in this color. At the left side of the camera a plaque is mounted mentioning the special release.

The lenses for the ETR and ETRS delivered in the beginning are the E lenses with the special identification MC (Multi coated) and carry a silver ring at the front of the lens. Later on E lenses without the silver ring but still with the MC marking
 

 

Overview accessories 'old ETR-S' version Overview accessories 'plastic' version


The ETR-S has changed to a newer version without changing the name. This version is known as the 'plastic' version because some of the parts are changed from metal to a 'plastic' version
 

The lever for multi exposure changed and the ring around the buttons are now in black finish instead of chrome. The mounts for the neck straps have changed into a 'C' ring type

The changes on the front are major, first of all the lens release button has moved to the left side of the camera and second, looking inside of the camera we see a changes in the internal mechanics
The X assignment of the flash connection has moved from the front to the lens mount.

Changes made on the lens interlocking are responsible for moving the release button to the side of the camera. The shutter speed setting knob has changed and also on this side the buttons changed to black instead of chrome

On the back there are no changes except for the serial number. This 7 digit number lost the 'B' (from bronica?) at the start. The film backs are changed from one release button to 2 buttons

On top of the camera we can clearly see why this camera has been nicknamed the 'plastic' one. The mount for the finders before metal has now been changed. The digits on the shutter speed knob are a little bit smaller than from the predecessor and also here, the chrome is gone

On the base plate here also the change from metal can be seen. Has the older version an engraved Zenza Bronica Japan filled with white paint, now its incorporated into the plastic

The changes of the ETR-S can also be seen on the weight of the camera, this went from 492 grams to 450 grams weighted with the standard body with battery without any accessories.


Overview of the  accessories available at the release of the  'plastic' version

Specificaties van de Zenza Bronica ETRS 'oude versie'

Type

4.5 cm x 6 cm format lens shutter single lens reflex camera, with interchangeable lens, film back, finder and focusing screen systems.

Frame size

42.5 mm x 55.1 mm (side/length ratio of 1:1.29 closely matches standard paper and reproduction sizes

Film

120 roll film (15 exposures)

Standard lens

Zenzanon E 75mm F2.8 lens; interchangeable type; 5 elements in 4 groups; multi-layer anti-reflection coated; 50 angle of view, F22 minimum aperture, helical focusing from inf. to 60 cm.

Filter size

58 mm diameter screw mount on 75 mm lens; 62 mm diameter screw mount on lenses from 40 mm to 250 mm focal lengths

Lens mount

Exclusive four claw Bronica bayonet mount

Lens diaphragm

Fully automatic instant reopening lens diaphragm action; equal-distant aperture scale graduations; depth of field previewing

Shutter

Electronic control SEIKO #0 between-lens leaf shutter; shutter speeds 8 sec. to 1/500 sec plus T (time exposures); mechanical control setting 1/500 sec

Multiple exposure

Multiple exposure possible with lever on body

Film back

Daylight loading interchangeable type, exclusive backs foe 120(15 exposures) and 220 (30 exposures) roll films, 70mm (90 exposures) film and Polaroid film pack. Supplied with 120 roll film back.)

Finder

Interchangeable finder system, with choice of five optional finders or waist-level finder, AE (automatic exposure)-II finder, rotary viewfinder, prism finder and sports finder
(No standard finder is supplied and therefore, a suitable one must be ordered separately.)

Focusing screen

Interchangeable type; standard screen has diagonally oriented split-image rangefinder spot surrounded by micro prism ring and full area matt screen. Optional types are (1) central matte spot surrounded by full area fresnell lens and (2) full area matte screen with vertical grid lines

Flash Synchronization

X-setting (up to 1/500 sec)

Battery checking

Red-colored led lights up within screen area when battery check button is depressed, if there is sufficient power.

Battery

Single-6-volt silver oxide battery (Eveready No. 544, UCAR No. 544 or Mallory N0. PX-28).Also powers AE II finder when attached.

Dimensions

110 mm (4-1/2") wide x 106 mm (4-1/4") high x 157 mm (6-1/4") long (with standard lens and waist-level finder)

Weight

1,346 grams (2.9lbs) ETRS camera with waist-level finder and 75 mm F2.8 lens
493 grams (1lb) ETR Body only (with battery)
326 grams (11,4 oz) 120 roll film back only
417 grams (14.6 oz) 75 mm F2.8 lens only
110 grams (3.8 oz) Waist level finder only

 

Specificaties van de Zenza Bronica ETRS 'plastic versie'

Type

4.5 cm x 6 cm format lens shutter single lens reflex camera, with interchangeable lens, film back, finder and focusing screen systems.

Frame size

42.5 mm x 55.1 mm (side/length ratio of 1:1.29 closely matches standard paper and reproduction sizes

Film

120 roll film (15 exposures)

Standard lens

Zenzanon E 75mm F2.8 lens; interchangeable type; 5 elements in 4 groups; multi-layer anti-reflection coated; 50 angle of view, F22 minimum aperture, helical focusing from inf. to 60 cm.

Filter size

58 mm diameter screw mount on 75 mm lens; 62 mm diameter screw mount on lenses from 40 mm to 250 mm focal lengths

Lens mount

Exclusive four claw Bronica bayonet mount

Lens diaphragm

Fully automatic instant reopening lens diaphragm action; equal-distant aperture scale graduations; depth of field previewing

Shutter

Electronic control SEIKO #0 between-lens leaf shutter; shutter speeds 8 sec. to 1/500 sec plus T (time exposures); mechanical control setting 1/500 sec

Multiple exposure

Multiple exposure possible with lever on body

Film back

Daylight loading interchangeable type, exclusive backs foe 120(15 exposures) and 220 (30 exposures) roll films, 70mm (90 exposures) film and Polaroid film pack. Supplied with 120 roll film back.)

Finder

Interchangeable finder system, with choice of five optional finders or waist-level finder, AE (automatic exposure)-II finder, rotary viewfinder, prism finder and sports finder
(No standard finder is supplied and therefore, a suitable one must be ordered separately.)

Focusing screen

Interchangeable type; standard screen has diagonally oriented split-image rangefinder spot surrounded by micro prism ring and full area matt screen. Optional types are (1) central matte spot surrounded by full area fresnell lens and (2) full area matte screen with vertical grid lines

Flash Synchronization

X-setting (up to 1/500 sec)

Battery checking

Red-colored led lights up within screen area when battery check button is depressed, if there is sufficient power.

Battery

Single-6-volt silver oxide battery (Eveready No. 544, UCAR No. 544 or Mallory N0. PX-28).Also powers AE II finder when attached.

Dimensions

110 mm (4-1/2") wide x 106 mm (4-1/4") high x 157 mm (6-1/4") long (with standard lens and waist-level finder)

Weight

1280 gram met Zenzanon-EII 75mmlens, film back ETRS 120 en waist level finder E without battery.
465 grams (1lb) ETR Body only (without battery)