The 8:1 is the ultimate umbrella offering more versatility than any other umbrella on the market. The different combinations are as follows: • White Bounce • Silver Bounce • Shoot Through • Shoot through with square mask • Shoot through box • Shoot through box with square mask • Umbrella box (bounce) with silver interior • Umbrella box (bounce) with white interior • The 8:1 can be used with studio flash and battery operated flash guns.