Hi Suzi,
Tarantulas are remarkable little creatures. Whether they originate in the tropics or in the colder areas, they are rather resistant to temperatures.
Some keepers keep their tarantula's with heating equipment to keep them at the optimum temperatures for the species, but this isn't really necessary for the most part, it is another point of personal preference.
The T Keepers Guide Revised Edition has a rather comprehensive discussion on temperatures on pages 151 and 152. They state that a tarantula can stand the cold up to just above 0 degrees centigrade (T's will die if they freeze) and below 35 degrees centigrade. Generally speaking, T's will start to die from too much heat at around 39 degrees centigrade. Any temperature between 1 and 35 degrees should be fine for your T's health.
I personally keep my T's in a separate room in my house, along with my reptiles and the residual heat from the reptiles heating pads does keep the temperatures a degree or two warmer than the rest of the house. Still, I have not lost any T's to cold or hot temperatures to date.
I do notice that during the cold days/weeks, the all my T's are sluggish and eat less. They are not as active during the colder times as they are during our summers.
So, to answer your question, IMO I wouldn't pick specific T's and photograph them, I would be comfortable posting any/all of my T's if I had a decent camera that had a macro lens