"I take pictures sometimes."
It's subtle, and they are pronounced identically anyway, but you're correct - that is the kanji for taking a picture. I sometimes have a fight with the IME on my phone, and don't always notice when it does something like that. I'll leave it alone so people can see what we're talking about.
You could use either, and would be understood with either in writing, but 撮 is more accurate and a reader would appreciate that you picked the correct kanji even though the readings are identical, since it carries additional information - the "taking" of pictures (something similar in nuance) as opposed to the taking of anything else.