Optical Accessories (Converters, Attachments) Lens Model : HJ16x8B HJ17ex7.6B HJ17ex7.7B HJ22ex7.6B J9ax5.2B / H9ax4.8 J16ax8B J15ax8B / H15ax6 J20ax8B J21ax7.8B J22ex7.6B KH16ex5.7 KH21ex5.7 KJ16ex7.7B KJ21ex7.6B KH20x6.4 KJ20x8.5B KT20x5B YJ18x9B / YH18x6.7 YJ19x9B / YH19x6.7 YJ20x8.5B