http://www.ip.pt/coaa/sx.zip (Win98 app) will read most binary formats and write Fits format provided the image is not too big (< 512 x 512) Regards Bev COAA, sítio do Poio, Mexilhoeira Grande 8500-149, Portugal Tel 00 351 282 471180 Fax 00 351 282 471516 ><> coaa at mail.telepac.pt www.ip.pt/coaa ><>