Neewer High Definition High-power 500mm f/8.0 Telephoto Mirror Lens(T-Mount Lens) for Nikon D7200 D7100 D7000 D5300 D5200 D3000 D3100 D5000 and More, Well Constructed with Multi-coated Crystal Optics Note: You Need to Purchase Corresponding Filters Additionally to Fit DSLR Cameras Such As Nikon D7200,D7100,D7000,D5300,D5200 Canon 5D 6D 7D 10D 20D 60D, Sony, Pentax,Olympus High definition Telephoto Mirror Lens of good quality with 500mm focal length. 9 elements in 8 groups; Minimum focus distantce:5.5' Rear thread for mounting filter: 30.5mm Great portability, easy to carry, one of excellent companions for outdoor shootings.