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| − | __NOTOC__
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| − | ==Identifying your Derby==
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| − | 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:
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| − | *Cloth focal plane shutter with speed settings of B, 1/25, 1/50, 1/75, 1/100, 1/200, and 1/500.
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| − | *Leather-covered aluminium body construction, with a strut folding system.
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| − | *Lens with helical focussing.
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| − | 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,<ref>Photographica Collection Dirk HR Spennemann</ref> with additional data and observation by a wide range of camera collectors.
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| − | ==STEP 1 Does the Derby have a self-timer?==
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| − | No
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| − | :‘Foth Derby” embossed on the leather
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| − | ::Are the windows rimmed?
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| − | :::Yes :→ [[Derby#Derby (1930)|Derby 1A]]
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| − | :::No
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| − | ::::negatives 24 x 36 :→ [[Derby#Derby (1930)| Derby 1B]]
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| − | ::::negatives 30 x 40 :→ (existence unclear)
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| − | :‘Gallus” embossed on the leather
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| − | ::→ [[Derby#Gallus Derby (1937–)|Gallus Derby]]
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| − | Yes
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| − | :Does the Derby have a rangefinder?
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| − | ::No
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| − | :::[[Derby_ID_key#STEP 2 What windows does the camera back show?|GO TO STEP 2]]
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| − | ::Yes
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| − | :::Rangefinder mounted on lens board
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| − | ::::removable (separation line visible)?
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| − | :::::Yes
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| − | ::::::→ [[Derby#Derby 4 (1936–1940)|Derby 4a]] (existence unclear)
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| − | :::::No
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| − | ::::::→ [[Derby#Derby 4 (1936–1940)|Derby 4b]]
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| − | :::Range finder mounted on camera body
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| − | :::: ‘Foth Paris on winding knob?”
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| − | :::::→ [[Derby#Derby 5 (193??)|Derby 5]]
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| − |
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| − | ==STEP 2 What windows does the camera back show?==
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| − |
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| − | Two round red windows
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| − | :Does the lens have a serial number?
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| − | ::No
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| − | :::‘Germany’ on the advance knob?
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| − | ::::No
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| − | :::::lens f2.5
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| − | ::::::→ [[Derby#Derby 2 (1931–)|Derby 2A/2.5]]
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| − | :::::lens f3.5
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| − | ::::::→ [[Derby#Derby 2 (1931–)|Derby 2A/3.5]]
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| − | ::::No, but 'Germany' embossed in the leather
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| − | :::::→ [[Derby#Derby 2 (1931–)|Subvariant 2Ai]]
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| − | ::::Yes
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| − | :::::lens f2.5
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| − | ::::::→ [[Derby#Derby 2 (1931–)|Derby 2B/2.5]]
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| − | :::::lens f3.5
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| − | ::::::→ [[Derby#Derby 2 (1931–)|Derby 2B/3.5]]
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| − | ::Yes
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| − | :::Pressure plate margin (see photos below)
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| − | ::::notched
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| − | :::::lens f2.5
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| − | ::::::→ [[Derby#Derby 2 (1931–)|Derby 2C/2.5]]
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| − | :::::lens f3.5
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| − | ::::::→ [[Derby#Derby 2 (1931–)|Derby 2C/3.5]]
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| − | ::::straight
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| − | :::::lens f2.5
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| − | ::::::→ [[Derby#Derby 2 (1931–)|Derby 2D/2.5]]
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| − | :::::lens f3.5
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| − | ::::::→ [[Derby#Derby 2 (1931–)|Derby 2D/3.5]]
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| − | Two oval red and two oval green windows
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| − | :Does the lens have a serial number?
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| − | ::No
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| − | :::lens f2.5
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| − | ::::→ [[Derby#Derby 3 (1935–1939?)|Derby 3A/2.5]]
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| − | :::lens f3.5
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| − | ::::→ [[Derby#Derby 3 (1935–1939?)|Derby 3A/3.5]]
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| − | ::Yes
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| − | :::Foth Anastigmat
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| − | ::::lens f2.5
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| − | :::::→ [[Derby#Derby 3 (1935–1939?)|Derby 3B/2.5]]
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| − | ::::lens f3.5
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| − | :::::→ [[Derby#Derby 3 (1935–1939?)|Derby 3B/3.5]]
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| − | :::Zeiss Tessar
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| − | ::::lens f2.5
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| − | :::::→ [[Derby#Derby 3 (1935–1939?)|Derby 3C/2.5]]
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| − | ::::lens f3.5
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| − | :::::→ [[Derby#Derby 3 (1935–1939?)|Derby 3C/3.5]]
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| − | :::Dallmeyer Dallon
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| − | ::::lens f5.6
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| − | :::::→ [[Derby#Derby 3 (1935–1939?)|Derby 3D]]
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| − |
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| − | ===ID images===
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| − |
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| − | {|class=plainlinks
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| − | ||[http://www.flickr.com/photos/heritagefutures/4870903713/in/pool-camerapedia/ http://farm5.static.flickr.com/4122/4870903713_0c81f17ece_m.jpg]<br/>notched pressure plate <br/>with metal rims
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| − | ||[http://www.flickr.com/photos/heritagefutures/4870900831/in/pool-camerapedia/ http://farm5.static.flickr.com/4142/4870900831_59e52cd2a8_m.jpg]<br/>notched pressure plate<br/>
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| − | ||[http://www.flickr.com/photos/heritagefutures/4871507508/in/pool-camerapedia/ http://farm5.static.flickr.com/4077/4871507508_b083d9769b_m.jpg]<br/>straight pressure plate<br/>
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| − | ||[http://www.flickr.com/photos/heritagefutures/4871499024/in/pool-camerapedia/ http://farm5.static.flickr.com/4122/4871499024_898b35e98a_m.jpg]<br/>straight pressure plate<br/>with red and green windows
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| − | |}
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| − |
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| − | == Notes ==
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| − | <references />
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