Archived posting to the Leica Users Group, 2009/04/15
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]why not just get a step-up ring? Regards, George Lottermoser george at imagist.com http://www.imagist.com http://www.imagist.com/blog http://www.linkedin.com/in/imagist On Apr 15, 2009, at 5:00 PM, Tim Gray wrote: > Hmm. That's interesting. I've seen very little about hotspots on IR > film, but I guess it does happen. Oh well. Time to look for a 39mm > IR filter - I'll just shoot with the CV 28/3.5, which had better NOT > have a hotspot :) > > Not that it's that interesting to most since they no long make HIE, > but I'll going to run a test soon with the lenses I have to see which > leave a hotspot on film, at what apertures. I'll also try to get a > handle on the focus shift... > > On Wed, Apr 15, 2009 at 4:54 PM, Slobodan Dimitrov > <s.dimitrov at charter.net> wrote: >> I've also had a hot spot with a 35mm. >> S.d. >> >> On Apr 15, 2009, at 1:29 PM, Leonard Taupier wrote: >> >>> Tim, >>> >>> The 28mm Summicron is known to give hotspots when shooting IR, >>> film or >>> digital. >>> >>> Len >>> >>> >>> On Apr 15, 2009, at 9:46 AM, Tim Gray wrote: >>> >>>> So I shot some HIE the other week, and to my surprise, a lot of the >>>> frames have an IR hotspot in the middle of the frame. I've heard >>>> this >>>> happens with digital and some lenses, but had never heard of it >>>> happening with film. I was using my 28 Summicron with an R72 >>>> filter. >>>> Anybody else have this occur while shooting film? >>>> >>>> _______________________________________________ >>>> Leica Users Group. >>>> See http://leica-users.org/mailman/listinfo/lug for more >>>> information >>> >>> >>> _______________________________________________ >>> Leica Users Group. >>> See http://leica-users.org/mailman/listinfo/lug for more information >> >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information >> > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information