• BirdForum is the net's largest birding community dedicated to wild birds and birding, and is absolutely FREE!

    Register for an account to take part in lively discussions in the forum, post your pictures in the gallery and more.

Search results

  1. tenex

    Swarovski SLC. Zeiss Conquest Nikon MHG and Vortex Razors 10x42

    Now we're getting into the eternal confusion between distortion and field flatness that I was trying to avoid by focusing on distortion, as the original question did. This measurement shows the SF has less pincushioning than the SV. You would have to look at a different measurement to compare...
  2. tenex

    Swarovski SLC. Zeiss Conquest Nikon MHG and Vortex Razors 10x42

    Yes, it is. There have been many threads about this in the past. Pincushion distortion is an optical trade-off against angular magnification distortion, where objects near the edge become compressed. With enough AMD, some people find panning nauseating. So pincushioning has long been...
Top