Specifications for Rochester Camera Gem Poco Folding

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Made in	Etats-Unis from 1898 to 1899
Frequency on French flea markets/yard sales:	Rare
Inventory #:	9766
Maker (if different from the brand):
Brand’s known addresses:	Rochester (N.Y.) Etats-Unis
Mc Keown's page:	840 (12th Edition)
Competitors:



Camera Type :	Chambre

Sensor
Image sensor:		Size (mm) :
Megapixels:		Image size (max) :

Film / plate / Sheet film and other
Film type:	Plaque (L'échelle est donnée par une pièce de 5 centimes.)

Maximum number of exposures:	1
Frame format (metric):	9 x 12 cm	Frame format (imperial):
Dimension of the dual-format frames (metric):		of the triple-format frames (metric):
Interchangeable back:	No	Magazine back:	No
Advance system:	Non	Position :	-
Rewind system:	Non	Position :	-
Rewind system options:
Video	Non

Exposure control
Meter:	Non	Meter location:	-
Metering:	Manuel	Metering mode:
IL/EV:	-	Exposure lock:
Film sensitivity:


Shutter
Shutter brand:	Rochester	(Visit List of shutters)
Shutter model:	(id 0)
Shutter type:	Rotatif
Shutter composition:	Lamelles métalliques
Shutter cocking:	Autre
Shutter speeds:	I, T
Shutter release:	Non
Double exposure prevention:	Non
Timer:	Non
Timer signal:
Timer duration:

Lens
Original lens type:	Standard
Lens mount:	Fixe
Lens brand:	Rochester
Lens model:	Gem
Mount:	- (Voir la monture)
Diaphragme:	Autre
Optical formula:	Ménisque	Original lenght:	Environ 100 mm
Maximum aperture:	Inconnue	Minimum aperture:	Inconnue
Minimal focusing (metric):	61	Minimal focusing (imperial):	2
Focusing mode:	Image réelle sur dépoli	Focusing control system:	Simple
Focusing memorization:	Non

Power alimentation
Original battery model:	Non (- Non)	Original number of batteries:
Remplacement battery type:		Number of replacement batteries:

Exposure
Exposure counter:	Non	Exposure counter reseting:

Bellows
Bellow extension:	Simple
Bellow shape:	Conique	Bellow color:	Rouge
Bellow material:	Cuir	Bellow corners:	Coins carrés
Bellow position:	Dans cadre horizontal	Bellow edges:	7
Bellow attachement:	Soufflet fixe	Cadre du soufflet:
Support intermédiaire du soufflet:	Non
Min. extension:	-	Max. extension:	13 cm
Vertical shift:	Non	Horizontal shift:	Non
Vertical tilt:	Non	Horizontal tilt:	Non

Viewfinder
Number of viewfinder:	1
Viewfinder type:	Externe fixe	Second viewfinder type:
Bright-frame finder:		Parallaxe:
Rangefinder image shape:		Rangefinder image color:
Rangefinder image type:		Technique d'affichage dans le viseur:
Exposure parameters display;	No	Exposure parameters and auto modes display:	No
Flash charging signal:		Frame counter:	No
Over/under exposure signal:		Focusing points

Monitor
Size (inch)		Dots :

Accessory shoe
Accessory shoe:		Shoe location:
Shoe parallax correction pin:		Hot shoe:
Number of accessory shoes:	0

Flash
Flash sync:	Non	Flash sync speed:
Number of connections:
Built-in flash:	Non	Type of built-in flash:
Flash options:		Guide Number (GN):	N/A
Anti-red eye option:		Anti-red-eye mode:

Dimensions and weight
Minimum dimensions (collapsed):	15,5 x 14 x 4 cm	Weight:	450 g
Maximum dimensions (extended):	15,5 x 14 x 15,5 cm

Miscellaneous
Depth of field preview:	Non	Manual mirror lock-up:
Miscellaneous: