Characteristics of Kodak insight, an F-speed intraoral film

Objectives. This study reports film speed, contrast, exposure latitude, res olution, and response to processing solution depletion of Kodak Insight int raoral film. Methods. Densitometric curves were generated by using International Standar ds Organization protocol. Additional curves were generated for Ultra-speed, Ektaspeed Plus, and Insight films developed in progressively depleted proc essing solutions. Eight observers viewed images of a resolution test tool f or maximum resolution assessment. Images of an aluminum step-wedge were rev iewed to determine useful exposure latitude. Results. Insight's sensitivity in fresh automatic processor solutions place s it in the F-speed group. An average gradient of 1.8 was found with all fi lm types. Insight provided 93% of the useful exposure latitude of Ektaspeed Plus film. Insight maintained contrast in progressively depleted processin g solutions. Like Ektaspeed Plus, Insight was able to resolve at least 20 l ine-pairs per millimeter. Conclusions. Under international Standards Organization conditions, Insight required only 77% of the exposure of Ektaspeed Plus film. Insight film pro vided stable contrast in depleted processing solutions.