For an automatic slideshow, how long should I display the photos?

Good evening, André, No absolute rule, except that one must avoid boredom. It all depends on the subject, the quality of the photos, the music, whether there is text, and of course the number of slides. I would say between 5 and 7 seconds. For the text, it's up to you; you need to allow time to read. Some slideshows have dreadful slides, and we're glad when they pass quickly! If the slides are of good quality, it is obvious that the pace should be slower. Best regards.

It all depends on the subject, my opinion is landscape 7/8 s, portrait 9/10 s, and group photos 10/11 s. Photos of the same category or similar 7/8 s;

Hello, for the response times given, I would say 5 to 6 seconds as well and not more than a round basket; after that, it becomes too long. The selection is therefore very strict! Enjoy the slideshow.

Okay with the answers already given. I have one question left: automatic slideshow, what does that mean? We let the images pass without any other structure, so in this case, the average time is 7 to 10 seconds. However, transitioning at a rhythm that's too fixed quickly becomes tiresome. You need to know when to slow down or speed up depending on the impression you want to convey, with appropriate transitions (keeping in mind that having too many different transitions can be very tiring). In any case, the minimum time, unless for a special effect, is 4 seconds. When making a video, it's said that the minimum recoverable time for a sequence is 9 seconds. In fact, making a slideshow is like constructing a film. Therefore, we fall into the criteria of film editing! Good luck.