How 12 months to pay works (credit card)?

I want to buy a nikon d90 worth 50, 000 pesos using credit card, 12 months to pay 0% interest. How will I pay for it? Do i need to have 50, 000 in my account or will i have to pay to the bank monthly? I'm new in credit cards.

You'll have to read the paperwork carefully. It will tell you exactly how you're expected to pay for your camera. You can also go into the bank and ask to see someone who will explain it to you so there's no surprises, which is always a good way to go.

Usually, if the wording is "you pay nothing for 12 months" or something along those lines, it means you have 12 months to get the money in your account and pay it in full.

If it says something along the lines of "12 payments" or "spread out over 12 months" that means you will be expected to pay a little each month.