本文叙述了自制大型变焦距电视望远物镜的象质评价。λ_A、λ_C、λ_F、λ_W 的零视场的 MTF 测量,是在焦距为500毫米、波长λ_D、轴上空间频率为35.4L/mm 时所对应的 MT 值最大的象面位置(D=0.824毫米)上进行的。把特征空间频率12L/mm 和35.4/Lmm 所对应 F 的 MTF 值作为象质译价的标准。 This article describes the self-made large-scale telephoto telephoto zoom lens quality evaluation. The zero-field MTF measurement of λ_A, λ_C, λ_F, λ_W is the position of the image plane with the largest MT value corresponding to a focal length of 500 mm, a wavelength of λ_D and an on-axis spatial frequency of 35.4 L / mm (D = 0.824 mm ) On the. The MTF value of F corresponding to the feature space frequency of 12L / mm and 35.4 / Lmm is taken as the standard of image quality translation.