when photos are opened in develop persona on 27in imac 10.8.5 32gb ram nvidia graphics card photos are badly distorted as well. when i used Canon's software just to check (NEVER EDIT) lol u can really see the difference. i have canon camera FF and canon glass and 3rd party glass i used tamron 24-70 and images are opening up distorted, No lens correction will not do the trick to fix this. edges are distorted and cropped and every thing pin-cushions inward if i'm saying this correctly. i never had the problem before with previous affinity photo versions but i realized every image i had to go in and use the correction i thought it was me but it wasn't. i even checked using my old photoshop cs5 after converting to dng and doing the camera raw edit and solidified my findings. this is not so good but hopefully this helps to fix the problem.