Archived posting to the Leica Users Group, 2006/06/11
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Damn Walt, you got me thinking and testing. Took a Summarit and burned within 1 sec a hole in a newspaper page at f 1.5. The distance was about the one to focal plane. Did it again at f 16. A smaller circle on the newspapern but no burning even at 10 secs. I also think I know why. Do you? ;-) Op 11-jun-06, om 14:56 heeft Walt Johnson het volgende geschreven: > Vick > > Simply take the lens off and outside to find the solution to your > question. Focus the sun on your arm stopped down and wide open and > prove to yourself which is more likely to burn the shutter curtain. > > Walt > > Vick Ko wrote: > >> I am just back from a very interesting trip to Bangalore (too few >> days, but >> in a way, just enough days). Interesting to see the thread on the >> temples...hmm. >> >> I was visiting my workteam, and a bit of sightseeing. The camera >> on my trip >> was a Leica CL. >> >> One question, on one day, my workteam took me out to play cricket >> and when >> it was "team photo" time, one of the guys took our cameras (there >> were 2 of >> us), stood back and took our photos. My camera was at f16, and I >> noticed >> that he put it face up on the ground. >> I had thoughts of horror as I worried about the sun burning a hole >> into the >> shutter. I did notice that he wound the film on, so I think at >> least there >> was a chance of the sun, coming in at f16, hitting the meter. >> >> So my LUG questions: >> >> 1. can the sun at f16 burn a hole? I'm not wanting to try the >> experiment >> >> 2. can the sun at f16 hurt my CL meter? It seems fine. I >> suspect the sun >> is not at its focal point for the meter face >> >> I did notice a discoloured patch that is off to the edge of the >> shutter, 1/4 >> of the way to the edge. It doesn't look like the sun "melted" the >> rubber >> there, maybe it was there always. >> >> Thanks in advance. >> >> Regards, >> >> Vick Ko >> >> --------------------------------------------------------------------- >> --- >> >> >> _______________________________________________ >> 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 >