43がイマイチってこたーねーよ
ピークの解像度は一番高い（中央）
上からFA43、FA31、FA77
https://www.lenstip.com/303.4-Lens_review-Pentax_smc_FA_43_mm_f_1.9_Limited_Image_resolution.html
https://www.lenstip.com/321.4-Lens_review-Pentax_smc_FA_31_mm_f_1.8_AL_Image_resolution.html
https://www.lenstip.com/196.4-Lens_review-Pentax_smc_FA_77_mm_f_1.8_Limited_Image_resolution.html

でもFA77で猫
http://pentax.mydns.jp/exif/files/img20180609233547.jpg