Please be advised that the photography regulations within Hagia Sophia Mosque may be subject to change. As of my last update in September 2021, Hagia Sophia had been converted into a mosque in Istanbul, Turkey. However, it's essential to note that photography policies at tourist sites can be influenced by factors such as governmental decisions, security considerations, or preservation efforts. For the most accurate and up-to-date information regarding photography within Hagia Sophia Mosque, we recommend consulting the official website of the mosque or contacting the relevant authorities or tourist information centers in Istanbul. By doing so, you can obtain the latest guidelines and restrictions pertaining to photography inside the mosque. Please exercise discretion and respect the rules and cultural norms when taking photos at this historical and religious site.