Please mention: it is fastest to select the images to download in your camera. The app just picks up the list you selected in the Nikons Wifi menu (see app web page or your cameras manual for details). The alternative selection by thumbnail in the app might show un-rotated thumbs with black border in some cameras. This is a Nikon problem. Bulb mode is not supported. Use the one day free trial to test if the app is working fine with your camera. Most larger DSLRs will do, most smaller models will not be compatible, or not with all features. Please do no post bad review because your camera is not supported- I cannot support them. The trial app will not start after one day, which is not a bug.