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| p.1 #7 · Question: Star burst and lens quality? |
I recently started using a rangefinder system and noticed it's a lot easier to get nice star bursts with these lenses than what I'd been seeing with my Canon glass, though not to say it doesn't happen with Canon glass. Many of the rangefinder lenses have a high number of aperture blades, like 10 or more, which may have an influence. But I've also gotten starbursts at quite wide aperture settings.
These were probably shot at around f/11, with a Zeiss ZM 50mm f/2 lens:
And another one with the 50mm, also probably f/8 or f/11:
This is a crop of a chandelier from an otherwise unspectacular photo, but what surprised me about this one was that I got starbursts at f/2. It's the Voigtlander 35mm f/1.2 II rangefinder lens:
This lens has 12 aperture blades. The Zeiss 50mm has 10.
Here's one with the Canon 50mm f/1.2L at f/14. I suspect the starburst from the near street light isn't as nice as the other images because the light source is quite large, but the starbursts from the distant street lights look good:
The number of points in the starburst corresponds to the number of aperture blades and it would seem a number greater than 8 does look nicer.