In BotW, the compendium requires you to take photos of each and every monster, creature, weapon, shield, etc. at least once. This does include unique items, like the Heroes' weaponry (Sword of the Seven, Radiant Trident, etc); The Blight Ganons; and I recently noticed the Sand Seal that Riju uses during the Naboris chase is also unique.
What are all the items, creatures, weapons, etc that I only get a limited opportunity to take a photo of?