Difference between revisions of "Gossen Sixtron"

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The 1968 '''Gossen Sixtron''' (in US '''Ascor''') is a dedicated flash meter. Electronics of the time were bulky and expensive and so separate dedicated flash meters were made. While the Sixtron's case is the same outline as the contemporary [[Gossen Lunasix 3|Lunasix]] it is much deeper to accomodate the electronics.
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The 1968 '''Gossen Sixtron Electronic''' (in US '''Ascor''') is a dedicated flash meter. Electronics of the time were bulky and expensive and so separate dedicated flash meters were made. While the Sixtron's case is the same outline as the contemporary [[Gossen Lunasix 3|Lunasix]] it is much deeper to accomodate the electronics.
  
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The Sixtron can only meter flash, not ambient light. It is fitted with two light cells but can only measure incident flash.
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The Sixtron can only meter flash, not ambient light. It is fitted with two light cells but can only measure incident flash. The Sixtron 2 provides reflected and incident measurement of flash.
  
 
Later Gossen meters such as the [[Gossen Profisix|Profisix]] and [[Gossen Lunasix F|Lunasix F]] incorporated ambient and flash metering, both with reflected or incident measurement possible.
 
Later Gossen meters such as the [[Gossen Profisix|Profisix]] and [[Gossen Lunasix F|Lunasix F]] incorporated ambient and flash metering, both with reflected or incident measurement possible.
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!|
 
!|
 
!|Sixtron
 
!|Sixtron
 +
!|Sixtron 2
 
|-
 
|-
 
!|Type
 
!|Type
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|Hand held flash exposure meter
+
|Colspan=2|Hand held flash exposure meter
 
|-
 
|-
 
!|Introduction
 
!|Introduction
 
|1968
 
|1968
 +
|
 
|-
 
|-
 
!|Sensor
 
!|Sensor
−
|Photodiode
+
|Colspan=2|Photodiode
 
|-
 
|-
 
!|Measurement
 
!|Measurement
 
|Incident
 
|Incident
 +
|Reflected & Incident
 
|-
 
|-
 
!|Display
 
!|Display
−
|Moving needle
+
|Colspan=2|Moving needle
 
|-
 
|-
 
!|Aperture
 
!|Aperture
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|f 1 to f 90
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|Colspan=2|f 1 to f 90
 
|-
 
|-
 
!|Film Speed
 
!|Film Speed
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|3 to 6400 ISO / ASA
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|Colspan=2|3 to 6400 ISO / ASA
 
|-
 
|-
 
!|Power
 
!|Power
 
|2 x mercury cell
 
|2 x mercury cell
 +
|
 
|-
 
|-
 
!|Dimensions
 
!|Dimensions
−
|100 x 68 x 53mm
+
|Colspan=2|100 x 68 x 53mm
 
|-
 
|-
 
!|Weight
 
!|Weight
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|248g
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|Colspan=2|248g
 
|-
 
|-
 
|}
 
|}
  
 
[[Category:Meters]]
 
[[Category:Meters]]

Revision as of 17:55, 23 May 2012

The 1968 Gossen Sixtron Electronic (in US Ascor) is a dedicated flash meter. Electronics of the time were bulky and expensive and so separate dedicated flash meters were made. While the Sixtron's case is the same outline as the contemporary Lunasix it is much deeper to accomodate the electronics.

The Sixtron can only meter flash, not ambient light. It is fitted with two light cells but can only measure incident flash. The Sixtron 2 provides reflected and incident measurement of flash.

Later Gossen meters such as the Profisix and Lunasix F incorporated ambient and flash metering, both with reflected or incident measurement possible.

Measurement

The large Lunasix style computer dial does not rotate, the inner dial is used to set film speed and the outer scale displays the range of apertures.

To measure, the meter is activated and then a test flash fired. The captured intensity is displayed by the needle and corresponding aperture read from the scale. Pressing the rocker switch in one direction activates the meter, which shuts down after three minutes. Pressing the rocker in the other direction shows battery check.

Specifications

Sixtron Sixtron 2
Type Hand held flash exposure meter
Introduction 1968
Sensor Photodiode
Measurement Incident Reflected & Incident
Display Moving needle
Aperture f 1 to f 90
Film Speed 3 to 6400 ISO / ASA
Power 2 x mercury cell
Dimensions 100 x 68 x 53mm
Weight 248g
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