Put the phone away before entering so the visit can be spent looking rather than checking restrictions. The chapel is normally the last major stop on a 2–3 hour route, so plan to spend time there rather than photographing it.
Vatican City · YOUR QUESTION, ANSWERED
Can I take photographs in the Sistine Chapel?
No. The Vatican Museums prohibit photography, filming, and talking in the Sistine Chapel, and staff enforce the rule. Photography without flash is permitted in most other galleries of the museums. Follow the posted instructions and the request for silence.
Sources & further readingVatican Museums: visitor information
Official sources cover institutional information. Suggested pacing and itinerary choices are planning guidance. Check current arrangements for your travel dates.