Archived posting to the Leica Users Group, 1999/06/18
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]In a message dated 6/18/99 5:41:23 PM Eastern Daylight Time, msmall@roanoke.infi.net writes: << At 04:13 PM 6/18/99 EDT, DT wrote: >I remember someone telling me that the Hologon vignettes so much that a >graduated filter with a darker center fading to a clear outside is required >to even out the light falloff. If the edge falloff is 2 stops (f16) the >filter would need to bring the center to f16 as well. This is just hearsay, This isn't "hearsay": it is in all the Zeiss literature on the Hologon and the Leica literature on the 8/15 Hologon. Thanks, Marc. I was pretty sure it was correct info I'd heard, but since I hadn't actually read it myself or heard it from a real authority, I didn't want to act like I knew it was a fact when in fact I didn't. DT