As someone who uses the α1 professionally, I understand the concerns of fellow SONY users like you. That's why I thoroughly tested this lens using the same standards I would use when making a purchase. ■ Confirmed Items in Field Tests ・ Flare shape (confirmed by shooting at F22) ・ Internal fogging effects in backlight shooting ・ Infinity focus accuracy ・ Focus accuracy at the closest focusing distance ・ Practicality in portrait photography All items confirmed to be working correctly. This lens delivers quality that allows you to fully utilize the α1's 50-megapixel sensor. ■ Why You Should Choose the First-Generation GM Lens "It's heavier than the II model." That's true. The body is approximately 191g heavier, at 886g. However, this weight is proof of the fundamental value of the first-generation GM. Reliability that continues to perform even after being used in professional settings. Durability that allows you to use it for 10 years, making it perfect for capturing your children's growth. That is the true value of the first-generation GM. ■ Kenko Zeta Protective Filter Included A high-quality filter (retailing for 6,600 yen) that should be purchased at the same time as the lens is already installed. You can start shooting with the front element protected from the day it arrives. ■ Product Condition Exterior: Very clean Inside the lens: Very clean / No fogging, mold, or balsam separation Operation: All operations confirmed / AF is quiet and fast ■ Accessories ・ Front cap ・ Rear cap ・ Kenko Zeta protective filter (installed) ・ Lens hood ・ Lens pouch ・ Instruction manual ・ Box ■ Promise to You This is an item for sale to deliver a lens that you can proudly say, "I made a good purchase," to your family. Real-world shooting confirmation by an expert. Optical performance verified with the α1. Includes a 6,600 yen protective filter. Put an end to the days of regretting "I failed again" on Mercari. Only one in stock. Since it is listed on multiple sites, it is on a first-come, first-served basis. ＜Please comment before purchasing if you want anonymous shipping＞ ＜Confirmation Items＞ ・ Those who can receive and evaluate within 3 days ・ All descriptions are subjective ※ Please refrain from purchasing if you are looking for a product in new condition as this is a used item. ※ Returns are accepted in case of operational defects or major malfunctions. Size...α E mount Sony Model Name...FE 24-70mm F2.8 GM Focal Length (Wide Angle)...19-70mm Focal Length (Telephoto)...51-70mm Maximum Aperture...2.1-2.8 Other Features...Lens hood included, front lens cap included, rear lens cap included