Do not use sendPhoto if you want maximum quality. Use sendDocument.
Use an app like QR Control or HTTP Bot to generate a QR code that, when scanned by your phone, triggers the Telegram bot to fetch the high-quality RTSP snapshot. ip camera qr telegram extra quality
To truly maximize "extra quality," you don't want 24/7 streaming. You want AI-triggered high-quality clips sent to Telegram. Do not use sendPhoto if you want maximum quality