Artists, held financially captive to subjectivism, need all the optimism they can get. Let's say you're a painter and you have a career. That's very good. Let's say you have a gallery sufficiently confident in your work to describe your place in the hierarchy as "mid-career" - suggesting that not only do you have a recognizable and profitable body of work, but there's every indication that it's ongoing. "Spring Invitational," an exhibit at the Equilibrium Gallery in Higganum, presents the abstract works of nine "mid-career" Connecticut artists, including Dennis Sirrine, whose "Transformation" is shown above. An artists reception, including wine and appetizers, takes place from 6 to 8 p.m. Friday in the gallery, 11 Scovill Road. Show runs through May 12. Hours noon-5 p.m. Tues.-Sat.; (860) 575-4223, equilibriumgallery.com.