anthonym3 Posted June 4, 2022 Share #1 Posted June 4, 2022 Advertisement (gone after registration) My SUMMITAR has a slight pinkish hue under overcast sunless sky. I did not believe that LEITZ coated lenses of that era. I have an IKOFLEX 2 with bloomed lenses, could it be so also with the SUMMITAR? Quote Link to post Share on other sites More sharing options...
Advertisement Posted June 4, 2022 Posted June 4, 2022 Hi anthonym3, Take a look here 1939 50MM SUMMITAR. I'm sure you'll find what you were looking for!
wda Posted June 4, 2022 Share #2 Posted June 4, 2022 It is possible that retrospective coating could have been carried out later in its life. Not necessarily by Leica. 2 Quote Link to post Share on other sites More sharing options...
anthonym3 Posted June 4, 2022 Author Share #3 Posted June 4, 2022 wda, thank you. Do you know of coatings of this color? Quote Link to post Share on other sites More sharing options...
wda Posted June 5, 2022 Share #4 Posted June 5, 2022 9 hours ago, anthonym3 said: wda, thank you. Do you know of coatings of this color? It is difficult to recall the situation after WWII, but I remember the service offered to existing owners. At first only exposed surfaces of in-use lenses were retro-coated by original makers or independents, usually of front and rear surfaces. I recall there was a pale blue colour visible, but as coating materials evolved, and coating of all surfaces were introduced , different colours were perceived. Unrelated makers developed their own formulae. There was no standard. Over time, coating colours fade or are worn as a result of cleaning, changing their appearance. I hope this helps. 1 Quote Link to post Share on other sites More sharing options...
jaapv Posted June 5, 2022 Share #5 Posted June 5, 2022 For instance "de Oude Delft" was a company that offered lens coating. 1 Quote Link to post Share on other sites More sharing options...
250swb Posted June 5, 2022 Share #6 Posted June 5, 2022 I have an uncoated 1939 Summitar and a 1946 coated Summitar. If I look at the uncoated lens under a daylight balanced light source I see a pinkish overall cast, followed by three reflections, a greenish gold and then two yellow reflections as light goes through the lens elements. On my coated lens I see an overall purple cast, followed by reflections of faded green, faded blue, then faded red as the light travels through the lens. What you may expect from coating a lens? 2 Quote Link to post Share on other sites More sharing options...
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