If that is what happened, then Marina was not telling the truth when she said that she thought she had taken only one photo. What's your point?
Oh it did happen alright, and her obviously not telling to truth is exactly the point. She can't remember how she operated the camera nor does she recall how many photos she took, but she did instantly remember to destroy the one photo she had, thus displaying an immediate awareness of it's significance.
Perhaps she never really took the pictures in the first place and was only given one. That might explain her very selective memory, might it not?
How about Michael Paine confirming in a TV interview that he had seen a BY photo shortly after it was taken (something he previously denied) or the high quality copy of one photograph (with Russian text that Marina denied writing) that ended up - and years later was found - in a storage unit belonging to George De Mohrenschildt, in a box that De Mohrenschildt believed had been placed there by Michael Paine? The Paine's claimed to not know the De Mohrenschildt's very well, so why would Michael Paine have access to their storage unit, while they were in Ha?ti? And then there was Roscoe White of course. How did he get a copy of a photo? Seems to me, none of these people would have had any connection to the photos if it was just a simple matter of a wife taking some pictures of her husband in the backyard!
And then of course, on a separate note, there was the DPD who claimed to have found the BY photos in Ruth Paine's garage during the second search (with a warrant) on Saturday afternoon, and yet Michael Paine confirmed in his testimony that he was shown a BY photo on Friday evening and asked if he could identify the location, which of course he did. We know he did, because Fritz wrote in his notes that prior to showing a BY photo to Oswald on Saturday, he already knew (from Michael Paine) where the photo was taken.