Archived posting to the Leica Users Group, 1997/12/31
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 12:35 PM 12/31/97 -0800, you wrote: >Jesse Newcomb wrote: >> >> Here's another bit of information: >> >> I DID see light leaks around the upper and lower edges of the shutter curtain >> with a 21mm Super-Angulon, and also with a 35mm Summicron. >> >> I did NOT see light leaks [on another roll of film] with a 135 Hektor mounted. >> >> Interesting, because the Super-Angulon gives probably the most tangential ray >> pattern toward the shutter edges - aiming the light outward in all directions >> from the rear element and straight into the shutter curtain channel. Still, >> this really seems like such a glaring defect in design - I'm waiting to hear >> about what others have seen. > >Jesse, >Gosh now it is out of the bag. Everyone thinks it's the lenses. But >those "leaks" are really the Leica secret to contrast control. They are >responsible for the instant preflashing (such as art copy people use on >4x5s) that adds exposure below the d-max level in the shadow area and >gives those rich Leica shadows. > >The only problem appears when you try photographing flashlights aimed at >a WA lens. > >When I am gonna do that I switch to Nikon. The Japanese are still in >the dark about preflashing with the shutter light bypass technology. > >donal >-- >Donal Philby Very very good Donal :-) :-) :-) Jim