Lightdow 420-800mm f/8.3 Manual Zoom Telephoto Lens + T-Mount for Nikon D5500 D3300 D3200 D5300 D3400 D7200 D750 D3500 D7500 D500 D600 D700 D800 D810 D850 D3100 D5100 D5200 D7000 D7100 Camera Lenses

* Make sure this fits by entering your model number. * NOTE: This is a FULL Manual Lens, NO Electronic Contacts, your camera will not detect the lens when mounted, that's why it shows "LENS NOT ATTACHED", 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. * Fine tune the front focusing ring to make subject in-focus and take a sample picture. If the picture turns out dark, take the following steps to improve, 1. Lower the shutter speed, from 1/500s down to 1/100s or slower 1/50 etc; 2. Raise the ISO Number, from ISO 100 to ISO 200/400/800 etc; 3. Use a remote shutter release and tripod to increase image stability; 4. Switch position to allow more environmental light coming through the lens into the camera imaging sensor. * Multi coated low-dispersion glass, anti-reflection coating, manual focus telephot...