Just used it again this morning. The battery in my Pentax K1000 fizzled, but my 3 1/2 year old daughter was in sunrise light, with the sun at my back, on her tricycle, in a sun dress, in the flowering garden, with "a basket of Dandyflowers Daddy" (Dandelions actually).
Only seconds before the moment is gone...400 ASA colour negative film...f16...1/250th of a second should put me in the ballpark. One more cheesy make-our-eyes-mist-over image that I would have missed if I, (or my 35mm camera this time) were battery dependant!
P.S. She can take photographs with that ancient, metal, heavy, Pentax K1000 and get a horizontal horizon line...Mommy & Daddy are sooooo proud!!!!!!!!