Found some converted slides while editing and sorting files. The trre one was taken in my Pentax and Praktica  days using a Hoya 400mm lens. Must be from the early 1960's. The tree one was taken with the Hoya around from 300 yards away. That was back in the days when I could hold steady enough for a 100th exposure on a 400mm lens.

Barfen 100 ASA slide film overated to 200 and developed by Prolab no doubt about it they did a good service and the Epson 4870 scanner does a good job  This was scanned to 300 pixels per inch and made into a 12 x 8 inch JPG..