Difference between revisions of "Derby ID key"
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| − | The dichotomous key provided below provides an avenue at identifying the types (it is recommended that you follow the steps, rather than scanning for criteria). The typology set out here was created by observation of a large number of Derby cameras in the author’s collection<ref>Photographica Collection Dirk HR Spennemann</ref>. | + | The dichotomous key provided below provides an avenue at identifying the types of [[Foth]] [[Derby]] (it is recommended that you follow the steps, rather than scanning for criteria). The typology set out here was created by observation of a large number of [[Derby]] cameras in the author’s collection<ref>Photographica Collection Dirk HR Spennemann</ref>. |
==STEP 1 Does the Derby have a self-timer?== | ==STEP 1 Does the Derby have a self-timer?== | ||
Revision as of 05:20, 9 August 2010
The dichotomous key provided below provides an avenue at identifying the types of Foth Derby (it is recommended that you follow the steps, rather than scanning for criteria). The typology set out here was created by observation of a large number of Derby cameras in the author’s collection[1].
STEP 1 Does the Derby have a self-timer?
No
- ‘Foth Derby” embossed on the leather
- Are the windows rimmed?
- Yes :→ Derby 1A
- No
- negatives 24 x 36 :→ Derby 1AB
- negatives 30 x 40 :→ (existence unclear)
- Are the windows rimmed?
- ‘Gallus” embossed on the leather
- → Gallus Derby
Yes
- Does the Derby have a rangefinder?
- No
- GO TO STEP 2
- Yes
- Rangefinder mounted on lens board
- removable (separation line visible)?
- Yes
- → Derby 4a (existence unclear)
- No
- → Derby 4b
- Yes
- removable (separation line visible)?
- Range finder mounted on camera body
- ‘Foth Paris on winding knob?”
- → Derby 5
- ‘Foth Paris on winding knob?”
- Rangefinder mounted on lens board
- No
STEP 2 What windows does the camera back show?
Two round red windows
- Does the lens have a serial number?
- No
- lens f2.5
- → Derby 2A/2.5
- lens f3.5
- → Derby 2A/3.5
- lens f2.5
- Yes
- Pressure plate margin
- notched
- lens f2.5
- → Derby 2B/2.5
- lens f3.5
- → Derby 2B/3.5
- lens f2.5
- straight
- lens f2.5
- → Derby 2C/2.5
- lens f3.5
- → Derby 2C/3.5
- lens f2.5
- notched
- Pressure plate margin
- No
Two oval red and two oval green windows
- Does the lens have a serial number?
- No
- lens f2.5
- → Derby 3A/2.5
- lens f3.5
- → Derby 3A/3.5
- lens f2.5
- Yes
- lens f2.5
- → Derby 3B/2.5
- lens f3.5
- → Derby 3B /3.5
- lens f2.5
- No
Notes
- ↑ Photographica Collection Dirk HR Spennemann
