Archived posting to the Leica Users Group, 2010/08/10
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]George - I spoke too quickly yesterday. You are right, the grain is good, old-fashioned, detector noise. There are refraction effects in this picture, you can see it in the slightly wavy lines of the distant buildings and boats, but that is not the cause of that grain. It's as bad as it is because I built contrast significantly to make the picture more interesting. That really aggravated the quite-low ISO 400 noise in the D300. The original image is so flat it looks like blue ghost on an aluminum sheet. I'll go back to this later today and see if I can improve it. Thanks for calling it to my attention. Regards, Dick On Aug 09, 2010, at 2:43 PM, George Lottermoser wrote: > Really? > I've never seen this uniform pattern before. > Amazing > > Regards, > George Lottermoser > george at imagist.com > http://www.imagist.com > http://www.imagist.com/blog > http://www.linkedin.com/in/imagist > > > > > > On Aug 9, 2010, at 1:19 PM, Richard Taylor wrote: > >> The "noise" is atmospheric refraction. Can't do much about that. >> >> Regards, >> >> Dick >> >> >> >> On Aug 09, 2010, at 2:04 PM, George Lottermoser wrote: >> >>> I find the "weight" of the water and POV >>> very compelling (in the tiny image). >>> >>> and the "noise" extremely unpleasant >>> and totally destroying the effects mentioned above >>> when viewing the larger image >>> >>> which I don't understand. >>> I thought the d300 held the noiseless record to date. >>> >>> Regards, >>> George Lottermoser >>> george at imagist.com >>> http://www.imagist.com >>> http://www.imagist.com/blog >>> http://www.linkedin.com/in/imagist >>> >>> >>> >>> >>> >>> On Aug 9, 2010, at 12:46 PM, Richard Taylor wrote: >>> >>>> Last Saturday we had one of our rare super visibility days on the water >>>> and a knife-edge horizon. Usually, distant views show vertical >>>> smearing due to refraction. >>>> >>>> The was taken on Vineyard Sound from a point just off Woods Hole. The >>>> boats are at the entrance to Vineyard Haven on Martha's Vineyard. East >>>> Chop is the point of land to the left; West Chop the one to the right. >>>> This a 100% crop with the 70-200 zoom at 200 mm from about 3.6 nautical >>>> miles off West Chop. The horizon is about 2 miles away from our >>>> position. >>>> >>>> The scene was very low contrast and the autofocus on the D300 had a >>>> hard time locking up. Manual focus wasn't much better since the lens >>>> has no infinity stop. Only two shots out of ten were properly focused. >>>> >>>> >>>> http://gallery.leica-users.org/v/rtaylor/PICKS/2010_boating/300_8509.jpg.html >>>> or >>>> http://tinyurl.com/2ctkot6 >>>> >>>> C&C always welcome. >>>> >>>> Regards, >>>> >>>> Dick >>>> >>>> >>>> >>>> >>>> _______________________________________________ >>>> 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