All of these lenses are completely corrected for lateral color and were intended for color photography. Exceptions are the Wide Field Ektars, which are four element air-spaced lenses of the 'Double Gause' type, and the 203mm f/7.7 Ektar which is a four-element air-spaced Dialye type, made slightly non-symetrical to improve its correction for distant objects. The ones made for press and view cameras were mostly Tessar types. Ektars were all very high quality lenses. There were a number of generic designs used for them. Ektars Ektar was used by Kodak as a trade name for its premium lenses. When they are lubricated they tend to be erratic. They were intended to run without any lubrication. Download To Aru Kagaku No Railgun Ova Sub Indo W there. If really clean they are acceptable shutters but should be exercised a couple of times before making exposures. The old Ilex shutters are often found on older commercial lenses. They are also quite easily modified to provide for X-synch for strobe flash. When clean they are quite reliable and have the advantage over the older Ilex shutters of having a time setting independant of the speed setting so that you can focus without resetting the exposure time.
Tessars,Xenars,Heliar Shutters The Compound is an old type shutter using an air-brake to control the speeds.More on classic lenses Most is from for Contents: My records after 1950 are a bit sketchy but I hope that helps! The lens has seen action in both world wars and was used as both a portrait lens and as a landscape lens used for battlefront recon.Ī shellburst close by did some damage(during WW1) to the front ring that was replaced at the factory free of charge since the owner in the US was an expat with some connections in the food distribution services for the British troops. The lens was then sent via steamer to New York where it was coupled up to a shutter about thirty years later. Some anecdotal evidence does mention that Emil von Hoegh slapped him on the back and called him the true 'double' anastigmat and his nickname from that day was 'doppeldaddy'. Otto had just been given the news that he was the proud father of twins and he was allowed to leave work early. The final optical bench test was given by Otto Plankshaft who deemed it above average and gave it his stamp before it was sent to the shipping department.
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