I purchased this lens for astrophotography and used it with my OLYMPUS E-PL9! It's a manual focus type. I've tested it out within my property. It's in excellent condition, having been used only a few times. The photos I took with it turned out beautifully. The following is a copy-pasted description: 25mm F1.8 Replacement Lens for Olympus and Panasonic Micro Four Thirds Interchangeable Lens f1.8-f16 - Compact and lightweight, achieving high portability with Olympus and Panasonic Micro Four Thirds cameras. - The 25mm small wide-angle focal length allows you to capture a wider range. By stopping down the aperture, you can increase the depth of field, making it ideal for travel landscapes, portraits, etc. - Ideal aperture with 10 diaphragm blades - The metal body, 5 optical structures in 3 groups, 10 aperture blades, and multiple high-quality coatings can suppress image glare, ghosting, and chromatic aberration. - Compatible models: GM1 GM5 GM7 GX1 GX7 GX8 GX86 GX9 G1 G2 G3 G5 G6 G7 G9 GH1 GH2 GH3 GH4 GH5 GH5S GF1 GF2 GF3 GF5 GF6 GF7 GF8 GF9 GF10 EPM1 EPM2 E-P1 E-P2 E-P3 E-P5 E-M1 E-M1II E-M5 E-M5II E-M10 E-M10II E-PL1 E-PL2 E-PL3 E-PL5 E-PL6 E-PL7 E-PL8 E-PL9 (Note: Not compatible with Olympus OMD 10 mark III.) Pergear 25mm F1.8 Silver