  We developed software for detection of variable stars using CCD photometry.
It works with "varfind data" that could be exported after processing CCD frames
using C-Munipack. Our goals were maximum automation and support of large fields
of view with thousands of stars. The program chooses the comparison stars
automatically, processes all time series using multiple comparison stars to get
final light curves. Different filtering algorithms are used to reduce the
impact of outlying points, imaging artifacts and low quality CCD frames without
careful manual time series reduction. We implemented various variable detection
indices and plotting two-channel diagrams of selected pair of indices and mean
brightness of the star to distinguish variables from constant stars for further
manual check of outlying points as variable candidates.
