its 50mm on a full frame so around 30mm on crop depending on your make of camera.Garuf said:I'm unsure off hand, it's in my Vis-qual guidebook somewhere, It goes as far as specifying the exact level/height the lens centre line should be from the ground so it'll be in there somewhere.George Farmer said:That's interesting. 50mm with what size film/sensor?Garuf said:incidentally 50mm is what the landscape institute are making their standard measure for when they do visual value assessments because it's the closest to the human perception of depth.
Im not sure you could limit the use of UWA in competitions when Amano uses it himself in some of this shots by the look of them. (not sure whether its UWA on an SLR or the large format equivalent he uses?)
eg from the 2011 ada calendar - from the angle im assuming this is UWA? (image from here - http://www.adana.com.sg/)
When you take inspiration from these images you do tend to want to re-create them.
The other thing is having the space to take images of a tank. Id imagine youd have to be pretty far away from a 120cm tank to take a competition shot at 50mm so it would restrict people with small rooms. UWA comes into its own here as you can be close to the tank. You can also hold the hairdryer while you take the shot with the camera on a tripod
There are also some ultrawide compacts coming on the market now although for compact they call anything under 25mm a UWA so not sure if they compare to 10mm on crop or 16mm on full frame?
I dont think UWA should be restricted but I also dont think that taking a comp image at a normal focal lenght like 50mm should be a disadvantage but the problem is that we will never see what goes on behind closed doors when judging (with george being the exception 😉 )
Perhaps the exif data should be entered with the photos so that the judges know what the focal length was when taken but then all judges would need to have an understanding of what focal length actually is as I doubt they are all photographers too?