NOTE: This is a manual lens, NO Electronic Contacts, your camera will not detect the lens when mounted, that's why it shows not connecting properly, please switch to MF MODE in order to use this lens correctly. Tips to use our Manual Lens: 1) Set the mode dial to Manual (M). 2) Set the Release w/o Lens option in the camera menu to Enable. 3) Set the Shutter lock option in the camera menu to Off: no lens. ADVANCED OPTICS / SUPER ZOOM / SOLID FULL METAL CONSTRUCTION / MANUAL FOCUSING. 420-800mm f/8.3-16 Manual Telephoto Zoom Lens for Sony A9, A7S II, A7R II, A7S, A7R, A7 II, A7, NEX-7, NEX-6, NEX-5, NEX-5N, NEX-5R, NEX-5T, NEX-3, NEX-C3, NEX-F3, NEX-3N, A6500, A6300, A6000, A5100, A5000, A3000, QX1 etc. Multi coated low-dispersion glass, anti-reflection coating, manual focus telephoto zoom lens to use with DSLR SLR cameras. Create Sharp High Quality Images, Comes with Lens Pouch and Protective Caps.

Maximum Focal Length: 800 Millimeters. Camera Lens Description: 6. Compatible Mountings: Canon EF, Nikon F. Lens Type: Telephoto. Brand: Lightdow. Manufacturer: ZLY Technology. Date First Available: February 22, 2016. Is Discontinued By Manufacturer: No. Best Sellers Rank: #25 in Digital Camera Accessory Kits #60 in SLR Camera Lenses. Customer Reviews: 3.8 out of 5 stars 735 ratings 3.8 out of 5 stars. Item model number: LD-420800-T. : B07CPP8S5P. Item Weight: 1.76 pounds. Product Dimensions: 9.45 x 2.75 x 2.75 inches.