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Flare
First, a caveat—
Caveat 1: Because the PC-Nikkors were obtained used, they might contain some dust or internal hazing that a new lens would not. Thus the flare performance of the PC-Nikkors might be bettered by purchasing a new lens. The PC-Nikkor 28mm/f4 is no longer available new, but the 28/f3.5 model is still available new. However, inspection of the lenses shows them to be quite clean, so their flare performance is likely to be very close to that of a new lens.
Caveat 2: the Schneider and the PC-Nikkors differ in focal length by about 1/2mm when focused near infinity. The slightly different angle of view means that getting exactly the same angle of the light source into the lens is not easily done. Also, the solar disk moves along fairly rapidly, changing its angle by the second.
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Diglloyd DAP is DSLR-oriented, but also contains workflow and other topics. Much of the focus is on Canon and Nikon but also Pentax and Pentax medium format.
Special emphasis is placed on lens evaluation, focusing on Canon and Nikon and Sigma lenses, but with a few others like Rokinon/Samyang.
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- Aperture series from wide open through stopped down, showing the full range of lens performance and bokeh.
- Optical quality analysis of field curvature, focus shift, sharpness, flare, distortion, and performance in the field.
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