  We present high-speed photometric observations of 25 cataclysmic variables
detected by the All Sky Automated Search for Super-Novae (ASAS-SN), the Mobile
Astronomical System of the TElescope-Robot (MASTER) and the Catalina Real-Time
Transient Survey (CRTS). From these observations we determine 16 new orbital
periods and 1 new superhump period. Two systems (ASASSN-14ik and ASASSN-14ka)
have outburst periods of approximately 1 month, with a third (ASASSN-14hv)
having outbursts approximately every 2 months. Included in the sample are 11
eclipsing systems, one probable intermediate polar (ASASSN-15fm), 1 SW Sex-type
star (MLS 0720+17), 1 WZ Sge-type star (ASASSN-17fz) and one system showing
different photometric and spectroscopic periods (ASASSN-15kw).
