TTL-metered prism viewfinder - Instructions for use
It's the original version of the Kiev Arsenal instructions for Kiev 88 TTL-metered prism viewfinder, written by the Kiev Arsenal and published here without changes.
General Notes
Since efforts are continually made to improve the reliability and performance of the product, minor changes may be introduced without special notice.
With the use of camera Kiev 88 TTL you can determine the exposure time and the diaphragm aperture with the aid of an exposure meter built into the prismatic viewfinder.
Magnification of the TTL prism finder eyepiece is 3x, the eyepiece design allows for application of diopter lenses. To install the diopter lens undo the clamping ring of eyepiece, set into the fitting socket a lens of 16 mm in diameter and fasten it by the clamping ring.
The field of vision measures 53x53 mm. Schematic representation of the field of vision when operating with the interchangeable viewfinders is given in the Figure:
Advantage and convenience of the TTL measurement system lies in the automatic control of all factors affecting the value of the exposure time. The field of measurement of the exposure time meter is in the central part of the viewfinder field of vision and has an oval shape (ref. to the Figure).
The exposure time meter ensures measurements in the range of brightness of 2 to 16 000 cd/m2, in this case the film-in-use sensitivity value is taken into account. Voltage of the power supply source is 4.5 V.
Determining the Exposure Time with the TTL viewfinder
When preparing the prismatic viewfinder TTL for operation set the film sensitivity on its calculator by turning handle 42 until the film speed value in ISO units appears in window 43.
Set on the calculator the value of the lens speed by turning scale 45 until the appropriate value coincides with index 46.
The lens speed means the number corresponding to the maximum relative aperture. For example, for lens MC Volna 3 - 80mm / f=2.8 the maximum relative aperture is 2.8.
Turn on the exposure time meter having depressed button 44. Upon its turning-on, release the button. The exposure time meter will operate for 15 s, then it will automatically turn off. For its repeated turning-on depress the button again. While viewing in viewfinder eyepiece 47, aim the camera on the object so that its image would be arranged within the field of view of the viewfinder. Depending on the brightness of the object being photographed, in the upper part of the field of view of the viewfinder you will see the luminescence of one of the signals:
Should the "Little light" red signal (Fig. No.1), located on the left in the field of view of the viewfinder, be seen, slowly turn calculator ring 48 counter-clockwise until the "Sufficient light'" second red signal appears.
Should the "Much light" red signal (Fig. No.2), located on the right, be seen, turn ring 48 clockwise until the second red signal appears. With the calculator in this position (two red signals light up, Fig. No.3), choose the "exposure-diaphragm" pair required for photographing by using the exposure scale and the diaphragm scale, e.g. exposure 1/30 s is opposite diaphragm value 2.8 (ref to the Figure), 1/15 s is opposite 4, 1/8 s is opposite 5.6, 1/2 s is opposite 11.
Set the values of exposure and diaphragm, chosen for photographing, on the camera exposure scale and on the lens diaphragm scale.
Replacing the Power Supply Source
The battery rated for 4.5 V and sizing diameter 11.6x16.2 mm serves as a power supply source (G13 / A76 / LR44 cell type, 3 pieces).
The serviceability of the power supply source is controlled by means of lighting signals, which light up in the field of view of the viewfinder eyepiece. The absence of signals with button 44 depressed is indicative of the necessity of replacement of the power supply source.
To replace or install the power supply source, unscrew cap 49 and, observing the polarity ("+" of the power supply source should be arranged from the end of the cap on which the "+" symbol is engraved), install it into the seat.
