摘要 |
<p>In a quantity-of-light adjusting apparatus having an iris (503) and an ND filter (502) which limit incident light, a control method for the quantity-of-light adjusting apparatus, and a computer program product providing a control program for the quantity-of-light adjusting apparatus, a state of limitation of the incident light by the iris is changed at a first changing speed, and, when a state of limitation of the incident light by the ND filter is changed, the state of limitation of the incident light by the iris is changed at a second changing speed different from the first changing speed. <IMAGE></p> |