The Scope Art Fair Inc. has held fairs in New York, Miami, London, Paris, and Los Angeles over the past few years. Tomorrow it will launch its latest incarnation in the summery oasis that is the Hamptons. Scope, founded by three employees of the Chelsea gallery Rare, has ridden on the wave of new international art fairs like Art Basel that have carved out a powerful niche in the market, increasing the opportunities and venues for the showing and selling of contemporary art.

Summer is a slow time for contemporary art, so the Scope organizers have taken the art out of the city in the middle of July to just the place where buyers migrate on the weekends. This weekend’s fair will be naturally smaller than the Scope New York, which was held last March at the Flatotel hotel in Midtown, to coincide with the Armory show Similarly, Scope Miami is held to coincide with Art Basel Miami Beach.

This year Scope New York had 75 exhibitors on six floors and was visited by more than 8,000 people with sales totaling $2.5 million. In Hampton Hall this weekend there will be 35 exhibitors in the fair, 21 of which are based in New York. These include the Chelsea-based galleries Rare, Caren Golden, Kathryn Markel, and Michael Steinberg, among others. There are also some East Hampton galleries such as Solar and Edsel Williams Fine Art.

ScopeHamptons starts at noon tomorrow at Hampton Hall on Elm Street in Southampton, and runs through Sunday. Inseparable from the Scope brand, which now has Jaguar automobiles and PLI Brokerage as its primary sponsors, is the opening-night party, called Culture on the Verge, which starts tomorrow at 9 p.m. and costs $20 to attend. Exhibitors will remain open until midnight for the party. Over the weekend, a silent auction of works donated by exhibitors will benefit a Long Island domestic violence agency, the Retreat.