Porno Adventures in Pentaxland Images
Accordingly, dispersion limiting is expected to be less bad. Wide open, the Yashinon Yashinon Radioactive Dating Dating shows the highest amount of blue fringing and the Tokina the least, which duly reflects in file Yawhinon. Its left-hand side is somewhat weak at this point though, and the other two look better there.
I know that lanthanum and thorium possibly other elements have been used to modify the index of refraction for glass used in some lenses. Others have raised concerns about safety when using the lenses.
Zeiss also sold Contax cameras under the Pentacon name and when they were absorbed by the KW company, they changed names to Praktica.