Its product range by this point included several optical instruments besides microscopes.
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Paul Ehrlich, inventor of chemotherapy, received the 150,000th one, and Nobel laureate Gerhard Domagk, discoverer of sulfonamides, the 400,000th Leica instrument.īy the end of the 19th century, the company had a worldwide reputation. Bacteriologist Robert Koch was given the company's 100,000th microscope in 1907. In 1887 the 10,000th microscope was shipped, four years later the 20,000th, and in 1899 the 50,000th was completed. By 1880, the company had reached an annual production numbering 500. Leitz microscopes improved on other models of their day in several ways, including lighting and optics, particularly with orthoscopic eyepieces. The microscopes were produced for biomedical as well as industrial purposes, including mineralogy. Consulting with his clients, he continued to refine the microscopes to their needs.
#E leitz wetzlar germany rangefinder serial
Leitz introduced serial production, raising sales volume rapidly after 1871. Initially, Leitz was a part shareholder of the business (in 1865), but took over as sole owner in 1869 and continued it under his own name. He was trained as an instrument maker for physical and chemical apparatus and had several years' experience making watches in Switzerland. (1843–1920) from Baden arrived at Wetzlar in 1864 and entered service at the Optisches Institut. Following his early death on, his widow continued the business he had left behind, the "Optisches Institut" (optical institute).
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The ocular was capable of rendering an image with the correct perspective, free of the distortions typical of other microscopes at that time. 1922.Perea-Borobio CollectionĬarl Kellner, mechanic and self-taught mathematician, published his treatise Das orthoskopische Ocular, eine neu erfundene achromatische Linsencombination ( The orthoscopic ocular, a newly invented achromatic lens combination) in 1849, describing a new optical formula he had developed. Focussing with 35mm or shorter lenses on the E-1 is hit and miss, and with the 2x crop of the 4/3rds camera and the consequent "doubling" of the focal length, the DOF won't cover much in the way of errors).Leitz compound monocular microscope. (I have thought of buying a Fotoman rangefinder for use with my Olympus E-1 when using Leica-R lenses on it. If the focussing is not correct, I think there is a screw for adjustment, but I could well be wrong, so don't go merrily graunching screws to try and correct any error. You'll be there all day if you try measuring the distance and then set it on the lens.Ĭheck that the rangefinder images coincide properly at "Infinity" - a couple of hundred meters or more. If you do use it, set both the lens distance scale and that of the rangefinder to the same distance and move towards or back to focus properly. The ends are made wide enough to fit snugly in the shoe. If I remember correctly, the rangefinder will fit in the accessory shoe, but not horizontally as one would expect, but vertically with the viewfinder of the RF at the bottom position. The specs given for the rangefinder exactly match mine and the picture could be a picture of mine except the one in the picture appears to have a LOT more wear on it. The rangefinder I have has no provision for insertion in the flash shoe.ĭoes anybody have any online source of information on the rangefinder and possibly it's current value?ĭid some more searching and found this page. The closest I have been able to find is a picture of a Leica 1 with the separately purchased rangefinder on top of the camera inserted in the flash shoe. I decided to do a search online and see if I could discover any information on it and maybe what the current value is. I have had a few people express interest in the rangefinder, but have not been interested in selling it.
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I have carried it in my camera bag with my M4 ever since. I purchased the rangefinder in Philadelphia in 1976 or 1977 on a whim for about $20.00. Also two spots on the top above the dial. There are two spots n the bottom of the tube, underneath the dial where the enamal has been worn through and the underlying brass is visible. I have measured the cloest it can rangefind: 812 mm It is black and has an engraved decal on the right side with E.LEITZ in the top of the decal and WETZLAR underneath that. It has a dial on the front that reads from 1,00 m to infinity. It is a black enameled, square metal tube 12 mm on a side and 104 mm long. I haven't been able to find any pictures of it on the web or really any information. So the rangerfinder pre-dates the M series. It is simply a rangefinder for early Leica cameras that did not have the rangefinder built-in, I guess that would be the M series.