Colour scanners became the biggest money earner for the company .
Crosfield continued Colour scanners ' development , launching the Diascan , an improved and cheaper model in 1965 and the enlarging Magnascan in 1969 .
Colour scanners became the biggest money earner for the company and Crosfield continued their development , launching the Diascan , an improved and cheaper model in 1965 and the enlarging Magnascan in 1969 .