All image entries must be able to be printed to a reasonable standard on an A4 sheet.  In previous years, that has been the defacto minimum size for prints.  We used that as the basis for working out the pixel requirements.  It's a compromise, as all things are, but we set the maximum pixel size to cover an A3 print at 300ppi, and the minimum size to cope with an A4 print at 240ppi.

The medal-winning entries will be printed and exhibited at the Mairangi Arts Centre on Auckland's North Shore.

We hope that the photographers who are used to the 1620x1080 size of digitals will accept the larger size.  Certainly at the North Shore Photographic Society we have been using 3840x2160 as our digital size for some years now, since we acquired a 4k projector for our club nights, and the members have segued into the new size quite happily.