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Pentax SPOTMETER V User Manual

Pentax SPOTMETER V
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Pentax SPOTMETER V Specifications

General IconGeneral
BrandPentax
ModelSPOTMETER V
TypeSpot Meter
Metering ModesSpot
Angle of Acceptance1 degree
Shutter Speed Range1/4000 sec. to 4 min.

Summary

Specifications of Pentax Spotmeter V

Measuring Range

Defines the operational EV range from 1 to 19.

ASA/DIN Film Speed Range

Specifies the supported film speed settings from ASA 6 to 6400.

Diaphragm and Shutter Speed Ranges

Details diaphragm from f/1 to f/128 and shutter speeds from 1/4000s to 4 mins.

Light Measurement Angle

Measures a 1° angle of arc in the center of the finder.

Measuring Distance

Operational range from 1.5 meters to infinity.

Type of Measurement

Utilizes spot metering of reflected light.

Photo Cell and Batteries

Features SPD photo cell and three G-13 mercury batteries.

Viewfinder System

Pentaprism viewfinder providing unreversed, right-side-up image.

Physical Dimensions and Weight

Provides width, height, length, and weight of the device.

Included Accessories

Lists mercury batteries, wrist strap, and case.

Key Features of Pentax Spotmeter V

Point-Metering Capability

Enables precise exposure measurement from the camera's position.

Advanced Metering and Viewfinder Features

Narrow Metering Angle (1 Degree)

Measures light with a precise 1° angle of arc for accuracy.

Bright Eye-Level Viewfinder

Features 1.5x magnification, unreversed, right-side-up image.

Filter Usage for Metering

Allows measuring exposure through filters to adjust for color.

Brightness Meter Functionality

Use as Brightness Meter

Usable for television broadcasting to adjust lighting and contrast ratios.

Battery Installation and Management

Battery Installation Procedure

Step-by-step guide for inserting three G-13 mercury batteries correctly.

Battery Life Expectancy

Details long battery life and sudden power loss warning.

Battery Checker Operation

Using the Battery Checker Button

Explains how to use the 'B' button to check battery condition.

Operating the Pentax Spotmeter V

Setting Film Speed (ASA/DIN)

Instructions for setting film speed using the ASA/DIN disk.

Adjusting Eyepiece Focus

How to adjust the eyepiece for a clear view of the light level scale.

Taking Light Readings

Aiming and Metering Procedure

Procedure for aiming, metering, and reading the light level scale.

Using the Scale Illuminator

Enables reading in low light conditions.

Using the Exposure Calculator

Aligning EV Readings

Aligning EV readings with the calculator dial.

Selecting Exposure Combinations

Choosing shutter speed and aperture combinations from calculator scales.

Interpreting Exposure Settings

Understanding Exposure Combinations

Understanding exposure combinations and selecting usable settings for the camera.

Taking Multiple Readings

Advises taking several readings from different subject areas.

Understanding the IRE Scale

IRE Scale Introduction

Explains IRE units for light energy comparison, used in TV and photography.

IRE Scale Indices and Ratios

Interpreting IRE Indices

Details black level (Index 1), intermediate brightness (Indices 2-9), and white level (Index 10).

Standard and Contrast Indices

Explains the standard index (18% reflectance) and contrast ratio (1:32).

Exposure Reading Methods

Half-Tone Reading Method

Measures an area of average tonal quality for exposure setting.

Averaging Method for Exposure

Averaging Method

Calculates average exposure from highlight and shadow readings.

Highlight Reading Method

Highlight Reading Method

Sets exposure based on the subject's highlight light levels.

Exposure for Special Effects

Special Effects Exposure

Using highlight metering for low-key effects like nocturnal scenes.

Shadow Reading Method

Shadow Reading Method

Sets exposure based on shadow areas, useful for backlighting and night scenes.

Luminance Conversion Table

EV to Luminance Conversion Details

EV to Luminance Conversion

Table converting Exposure Values (EV) to candelas per square meter and foot lamberts.

Additional Information and Adjustments

Zero Adjustment Procedure

How to adjust the indicator needle to the zero position.

Close-Up Reading Considerations

Tips for metering very small points or close subjects.

Filter and Color Selection

Selecting Filters for B&W Contrast

Using filters with the spotmeter to improve B&W contrast of colored objects.

Color Distribution in Television

Considering color distribution for attractive TV broadcasts.

Spotmeter V for Movie Cameras

Uses in Movie Making

Details the use of the spotmeter for feature films and documentaries.

Using Scale for Movie Cameras

Adapting Scale for Movie Photography

Adapting shutter speed and aperture settings for 35mm, 16mm, and 8mm movie cameras.

Wrist Strap Adjustment

Adjusting Wrist Strap Length

Guide to adjusting the wrist strap for optimal fit.

Tripod Mounting

Mounting on a Standard Tripod

Details the threaded connection for tripod mounting.

Spotmeter V-FL Model Details

Footlambert Readings for TV/Film

Explains viewfinder readings directly in foot lamberts for T.V. and film making.

Luminance Ratio Calculation

Describes how to set and read luminance ratios using the calculator dial.

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