Posted: Thu Dec 15, 2011 7:21 pm Post subject: A very nostalgic shot with the rear group of a Helios-44-2 |
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vilva wrote:
I noticed that the rear lens group of Helios-44-2 has a lot of field curvature, much more than the rear group of Heliar. On an EOS5D, it seems the sides of the frame are in focus to about 1 m when the center is focused at infinity! This amount of field curvature makes it mostly useless as the sides and especially the corners will be very soft. However, sometimes the result can be very pictorial in a nostalgic way, like this, after a moderate amount of sharpening at full resolution and toning:
Veijo _________________ Mainly Schneider-Kreuznach Radionar (1938), VPK Meniscus Achromat (1915), TTH Cooke Anastigmat (1917), TTH Cooke Aviar (1937), Goerz Dopp-Anastigmat III Dagor (1912), Voigländer Heliar (1928) or Aldis Uno Series III (1903 design) mounted on EOS 5D or EOS 350D |