Archived posting to the Leica Users Group, 2003/06/09
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Interesting thought: it was very dusty, and I did not clean the lens between takes. Never noted dust to do this, but with longer exposures etc, maybe, but then, they were not in the same place all the time. Hmm anyone know if dust can do this ? On Tuesday, Jun 10, 2003, at 11:54 Australia/Melbourne, Mike Durling wrote: > Could these be from dust on the lens surface that the light is > hitting? With a lens that wide they might be just out of focus. > > Mike D > > Alastair Firkin wrote: >> G'day all, >> I recently had the chance to visit Antelope canyon. I was desperate >> to work on some of the flowing sandstone shapes in both colour and >> b/w. The canyons are quite narrow, and to my surprise, present a >> major problem of "contrast". Of course, I should have realized, but >> nothing beats being there. My first images are "failures". Despite >> keeping the lens out of the direct line of the light as it pours >> through the ceiling the 15 mm Super elmar has created a chicken pox >> effect with small dots of flare -- small I presume as I was using f16 >> or f22. >> Am I right in thinking this is due to the highlights bouncing around >> in the lens barrel? Is there any way to avoid this flare? Is the >> older super elmar more prone to flare than the newer version -- not >> that I could afford the newer one, or the trip back to Arizona !!!! >> Please visit: >> http://stairfirkin.com/Mayimages/antelopeflare1.jpg >> http://stairfirkin.com/Mayimages/antelopeflare2.jpg >> to see my problem. Not that I can easily return to Antelope Canyon ;-) >> I will be slowly posting some images of our trip, as I work on them >> in the darkroom (and with the scanner). >> Alastair >> -- >> To unsubscribe, see >> http://mejac.palo-alto.ca.us/leica-users/unsub.html > > -- > To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html > > Alastair - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html