The utility model discloses a filter support, including
fixed frame, two active elements, two driven module and transmission part. Active element and driven module all are opposite
fixed frame mobile setting, and transmission part is opposite
fixed frame rotation setting. Two active elements and two driven module are along annular arrangement, and a driven module is located between two active elements. Active element and transmission part transmission connection, and driven module also with transmission part transmission connection. When active element is opposite fixed frame mobile, can drive transmission part opposite fixed frame rotation, and then promotes driven module to move to the same mobile direction with active element. The structure realizes the cooperation of active element and driven module
through transmission part, improves the adjustment flexibility, can better adapt to different
caliber lens, reduces the dark corner, satisfies the diversified shooting demand.