Difference between revisions of "Derby ID key"
(→Identifying your Derby) |
(added back links to the Derby types) |
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| Line 13: | Line 13: | ||
:‘Foth Derby” embossed on the leather | :‘Foth Derby” embossed on the leather | ||
::Are the windows rimmed? | ::Are the windows rimmed? | ||
| − | :::Yes :→ Derby 1A | + | :::Yes :→ [[Derby#Derby (1930)|Derby 1A]] |
:::No | :::No | ||
| − | ::::negatives 24 x 36 :→ Derby | + | ::::negatives 24 x 36 :→ [[Derby#Derby (1930)| Derby 1B]] |
::::negatives 30 x 40 :→ (existence unclear) | ::::negatives 30 x 40 :→ (existence unclear) | ||
:‘Gallus” embossed on the leather | :‘Gallus” embossed on the leather | ||
| − | ::→ Gallus Derby | + | ::→ [[Derby#Gallus Derby (1937–)|Gallus Derby]] |
Yes | Yes | ||
:Does the Derby have a rangefinder? | :Does the Derby have a rangefinder? | ||
| Line 27: | Line 27: | ||
::::removable (separation line visible)? | ::::removable (separation line visible)? | ||
:::::Yes | :::::Yes | ||
| − | ::::::→ Derby 4a (existence unclear) | + | ::::::→ [[Derby#Derby 4 (1936–1940)|Derby 4a]] (existence unclear) |
:::::No | :::::No | ||
| − | ::::::→ Derby 4b | + | ::::::→ [[Derby#Derby 4 (1936–1940)|Derby 4b]] |
:::Range finder mounted on camera body | :::Range finder mounted on camera body | ||
:::: ‘Foth Paris on winding knob?” | :::: ‘Foth Paris on winding knob?” | ||
| − | :::::→ Derby 5 | + | :::::→ [[Derby#Derby 5 (193??)|Derby 5]] |
| Line 42: | Line 42: | ||
::No | ::No | ||
:::lens f2.5 | :::lens f2.5 | ||
| − | ::::→ Derby 2A/2.5 | + | ::::→ [[Derby#Derby 2 (1931–)|Derby 2A/2.5]] |
:::lens f3.5 | :::lens f3.5 | ||
| − | ::::→ Derby 2A/3.5 | + | ::::→ [[Derby#Derby 2 (1931–)|Derby 2A/3.5]] |
::Yes | ::Yes | ||
:::Pressure plate margin | :::Pressure plate margin | ||
::::notched | ::::notched | ||
:::::lens f2.5 | :::::lens f2.5 | ||
| − | ::::::→ Derby 2B/2.5 | + | ::::::→ [[Derby#Derby 2 (1931–)|Derby 2B/2.5]] |
:::::lens f3.5 | :::::lens f3.5 | ||
| − | ::::::→ Derby 2B/3.5 | + | ::::::→ [[Derby#Derby 2 (1931–)|Derby 2B/3.5]] |
::::straight | ::::straight | ||
:::::lens f2.5 | :::::lens f2.5 | ||
| − | ::::::→ Derby 2C/2.5 | + | ::::::→ [[Derby#Derby 2 (1931–)|Derby 2C/2.5]] |
:::::lens f3.5 | :::::lens f3.5 | ||
| − | ::::::→ Derby 2C/3.5 | + | ::::::→ [Derby#Derby 2 (1931–)|Derby 2C/3.5]] |
Two oval red and two oval green windows | Two oval red and two oval green windows | ||
:Does the lens have a serial number? | :Does the lens have a serial number? | ||
::No | ::No | ||
:::lens f2.5 | :::lens f2.5 | ||
| − | ::::→ Derby 3A/2.5 | + | ::::→ [[Derby#Derby 3 (1935–1939?)|Derby 3A/2.5]] |
:::lens f3.5 | :::lens f3.5 | ||
| − | ::::→ Derby 3A/3.5 | + | ::::→ [[Derby#Derby 3 (1935–1939?)|Derby 3A/3.5]] |
::Yes | ::Yes | ||
:::lens f2.5 | :::lens f2.5 | ||
| − | ::::→ Derby 3B/2.5 | + | ::::→ [[Derby#Derby 3 (1935–1939?)|Derby 3B/2.5]] |
:::lens f3.5 | :::lens f3.5 | ||
| − | ::::→ Derby 3B /3.5 | + | ::::→ [[Derby#Derby 3 (1935–1939?)|Derby 3B/3.5]] |
== Notes == | == Notes == | ||
<references /> | <references /> | ||
Revision as of 10:09, 9 August 2010
Contents
Identifying your Derby
The Foth Derby comes in a bewildering range of variants. In total five discrete types can be distinguished, each with their own sub-types, lens combinations and viewfinder options, augmented by additional variations subject to the market the camera was sold to. The technical and construction details common to all Derby models are:
- Cloth focal plane shutter with speed settings of B, 1/25, 1/50, 1/75, 1/100, 1/200, and 1/500.
- Leather-covered aluminium body construction, with a strut folding system.
- Lens with helical focussing.
The dichotomous key provided below provides an avenue at identifying the types of Foth Derby. Given the confusing similarity of models and variants, it is recommended that you follow the steps, rather than scanning for criteria. When you have identified your model, click on the model name to see a full description. 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
- ‘Gallus” embossed on the leather
Yes
- Does the Derby have a rangefinder?
STEP 2 What windows does the camera back show?
Two round red windows
- Does the lens have a serial number?
- No
- lens f2.5
- lens f3.5
- Yes
- Pressure plate margin
- notched
- lens f2.5
- lens f3.5
- straight
- lens f2.5
- lens f3.5
- → [Derby#Derby 2 (1931–)|Derby 2C/3.5]]
- notched
- Pressure plate margin
- No
Two oval red and two oval green windows
- Does the lens have a serial number?
- No
- lens f2.5
- lens f3.5
- Yes
- lens f2.5
- lens f3.5
- No
Notes
- ↑ Photographica Collection Dirk HR Spennemann
