I selected X mount in the size options because G mount was not available, but it is actually G mount. • Manufacturer: FUJIFILM • Lens Name: FUJINON GF45-100mmF4 R LM OIS WR • Compatible Mount: FUJIFILM G mount (compatible with GFX series) • Focal Length (35mm equivalent): Approximately 36mm - 79mm • Maximum Aperture: F4 • Minimum Aperture: F32 • Number of Aperture Blades: 9 (circular aperture) • Lens Construction: 12 groups, 16 elements (including 3 super ED lenses and 1 aspherical lens) • Minimum Focusing Distance: 0.65m • Maximum Magnification: 0.13x • Filter Diameter: 77mm • Image Stabilization: Approximately 5 stops (CIPA compliant) • Dust-resistant, moisture-resistant, and low-temperature resistant construction: Supported (down to -10°C) • Size/Weight: Approximately 93 x 144.5mm / Approximately 1,005g • Release Date: February 2020 • Appearance: Overall in beautiful condition. • Optics: No mold, fogging, balsam separation, or dust. Clear optical condition. • Operation: AF, image stabilization, and aperture ring operation confirmed without any issues. Included Accessories • Usage Environment: Used in a studio. • Storage: Stored in a dehumidified storage cabinet. • Lens front cap • Lens rear cap • Lens hood • Original box and inner box • Instruction manual • Warranty card Used in a studio for work. As it was used for work, it has been handled with care, so the focus, aperture, optical performance, and everything else are clean and in good condition.