- Joined
- May 20, 2011
- Messages
- 590
- Format
- 35mm RF
antique brass lens from the English lens maker John Henry Dallmeyer, established in London in 1860
engravings:
J.H. Dallmeyer
N 34124
London
8½ x 6½
Rapid Rectilinear
Patent
N 34124
London
8½ x 6½
Rapid Rectilinear
Patent
focal length: it seems to be about 290mm
diaphragm: it seems to be about f/7.5
f/stops: slot for Waterhouse Stops
height (with lens hood): 70mm
frontal diameter (lens hood): 58mm
image circle: about 40cm; even that it was intended for 8½ x 6½ plates, its coverage is still enough for a 10x12" plate
weight (with lens flange): 255g
symmetrical optical design (4 elements, 2 groups)
it is a convertible lens: if the the frontal element is unscrewed, the lens gives double focal length and increased coverage
excellent condition, it keeps its original lacquer
glasses: clean and clear
there is no fungus, haze or separation
comes with lens flange
price: $225
Shipping cost to Europe: $12.50
USA, Canada, Australia, China, Japan, and all other countries: $16.50
parcels shipped from Europe
(insured, registered, with track and trace on internet)
payments:
Bank Transfer preferred (Wise, Revolut)
PayPal also accepted
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