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We present preliminary results of the variability survey in the field of theglo bular cluster NGC 4833. We observed all 34 variable stars known in thecluster. In add ition, we have found two new SX Phoenicis stars, one new RRLyrae star, twelve new ecli psing systems mostly of the W Ursae Majoris type,nine new variable red giants, and ten new field-stars showing irregularvariations. Properties of RR Lyrae stars indicate that NGC 4833 is anOosterhoff's type II globular cluster.

Wide-field variability survey of the globular cluster NGC 4833