Onex Is Said to Make Fresh Attempt to Sell $1 Billion Carestream

Onex Corp. is exploring a new sale process for medical imaging equipment maker Carestream Health Inc., according to people with knowledge of the matter, after several previous attempts to divest the business.

The Toronto-based buyout firm is working with advisers and is seeking at least $1 billion from a proposed divestment of Carestream, a former unit of Eastman Kodak Co., said the people, who asked not to be identified as the information is private.

A formal sale is expected to kick off later this year, and Onex has reached out to prospective buyers to gauge interest, the people ...