Archived posting to the Leica Users Group, 2001/02/21
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I'm showing unbridled restraint! Jim At 01:24 PM 2/21/01 -0500, Austin Franklin wrote: >Seriously, this was a legitimate question, Jim... Are legitimate questions >not acceptable now? > >Who's criminny anyway? My spell checker keeps trying to change it to >acrimony... > >> Jeez Austin. For criminny sake!!! >> >> Jim >> >> >> At 10:19 AM 2/21/01 -0500, Austin Franklin wrote: >> >A claim has been made (elsewhere) that using a UV filter will >> cause a 'focus >> >shift', which, would be more critical for a >> rangefinder...depending on how >> >shifted the focus is. >> > >> >What are the facts around this claim? I take a Hasselblad with >> a 110/2, and >> >a magnifying hood...critically focus on something ~3' away, and >> I don't see >> >a focus change with a UV filter on or off...and all my Noctilux >> and Summilux >> >images are dead on focus wide open...and I do use UV filters, >> and I do a LOT >> >of close up work...I would think I'd see it there. >> > >> >Perhaps there is some focus shift, but it is certainly not significant. >>