Contrast-enhanced golf club heads

A golf club head, comprising:

• a crown having at least an upward facing surface portion provided with a diffused surface treatment as viewed from an address orientation, wherein the diffused surface treatment defines a highest reflected intensity location on the crown in response to illumination from a light source situated within a cone of angular radius of about 30 degrees above the crown;
• and
• a striking surface situated so as to define an interface with the crown, wherein a top surface of the striking surface adjacent the crown has a black surface treatment.

A golf club head, comprising:

• a crown having at least an upward facing surface portion provided with a diffused surface treatment as viewed from an address orientation, wherein the diffused surface treatment defines a highest reflected intensity location on the crown in response to illumination from a light source situated within a cone of angular radius of about 30 degrees above the crown, wherein a secondary location situated on the crown has a reflected intensity of at least 20% of the highest reflected intensity within a distance of at least 20% of a crown effective length from the highest reflected intensity location, wherein a zone of crown intensity is defined from the crown effective length in a direction of 30 degrees and negative 30 degrees from the crown effective length.