Voting for multiple photos

I'm creating a photo contest for a calendar. I will have people submit their photos and voters choose their favorites. In the end, I want to choose the top 12 photos. I want voters to be able to vote for their favorite 12 (or maybe 3 or 6) photos and then I will choose the photos with the most votes for the calendar. It doesn't appear for their to be an option to enter how many photos one person can vote for. Can you help?

Hi Jaime,
you can have a look at our Dot Voting
There you can assign users a certain amount of dots, which can be distributed among the images. The dot symbol can also be changed into star or heart or thumb.
Kind regards
Philipp