![]() ![]() Large Format: Cambo SC 4x5, Rodenstock Sinaron 150/5.6, Rodenstock Rodagon 150/5.6, Schneider Kreuznach Symmar 180/5.6 Medium Format: Pentacon Six TL, Zeiss Ikonta 520/2, Mockba 4, Voigtlander Bessa I, Agfa Isolette II, Agfa Isola SLR: Chinon CX, Fujica ST605n, Nikon f601, Pentacon FM, Pentax Spotmatic SPII, Praktica FX, Praktica FX2, Voigtlander VST1, Yashica FX-3, Zeiss Contaflex My Blog about Photography and Italian Cuisine In 100000 digital shots you evidently never shot against some point lights. If you are a highlight fanatic, check this link for extra shapes I believe some people compose expressly to get those highlights, like those who only shot walls ![]() Most of my lens have 6 blades but after 100000 digital shots, I never seen any hexagonal highlight Quality of bokeh have more to do with optical design Poilu wrote: more aperture blades mean more circular OOF highlights Location: Oberhessen, Germany / Maidstone ('95-'96) this picture was taken by Meogon enlarger lens. Some lenses has pleasant bokeh despite low number of iris blades. No-X wrote: I think number of blades is the 3rd aspect, which has influence on bokeh. MF: Mir-24H 35mm f/2.0, Pentax Super Takumar 50mm f/1.4 The optics are probably the same, so i guess only the bokeh effects changeĪF: Canon EF 24-104mm f/4L IS, Canon EF 70-200mm F/4L IS, Canon 50mm f/1.4, Canon 1.4x EF Extender II Winmazing wrote: I noticed that the most recent production of the Mir-1 has 10 aperture blades - i'm not sure how many there are in the older versions. Support the Ornano film chemicals company and help them survive! ![]() Excess grease is a typical problem of some soviet lenses with many blades. This can (or can not) cause problems with the time, if grease is in excess. Also, more blades mean the necessity of more grease to make the blades run smooth. However, the more blades, the thinner they must be, and thus the easier to damage (and the harder to repair). This can make a difference in the bokeh especially at the middle apertures, where lenses with less blades look worse. Orio wrote: As Nelmu said, many blades (10 or more) make OOF highlights look circular. ![]()
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