TY CONF TI Four-channel wide-field cluster for survey tasks and synchronous multicolor photometry KW surveys; telescopes; methods: observational; techniques: photometric; instrumentation: photometers; stars: variables: general JO Modern astronomy: from the Early Universe to exoplanets and black holes AU Ibrahimov, M.. AU Nalivkin, M.. AU Shugarov, A.. PY 2024 PB Special Astrophysical Observatory of the Russian Academy of Sciences