I'm looking for an image viewer for Windows which always displays a full-screen view of the newest image a specific folder. Preferably with raw image format support (Nikon) and free or inexpensive (< 20 Euros).
FastPictureViewer works very well, but since I only need this one feature, the price is a bit too high (49,99 USD).
The use case: I'm shooting product photos with a Nikon D50 in USB PTP (picture transfer protocol) mode, directly connected to a Intel NUC computer connected to a TV. Seeing the latest image automatically on the screen directly after shooting makes it very easy to adjust the lights and camera settings.