Lightdow 420-800mm f/8.3 Manual Zoom Super Telephoto Lens + T-Mount for Canon EOS Rebel T3 T3i T4i T5 T5i T6 T6i T6s T7 T7i SL1 SL2 6D 7D 7D 60D 70D 77D 80D 5D II/III/IV DSLR Camera Lenses
Brand: Lightdow
Color: For Canon
Description:
High Definition 800mm preset telephoto lens is and incorporates not only computer optical design, but also the latest optical multi-coating techniques. The process of multi-coating assuresvirtually flare free photographs even under adverse lighting conditions resulting in crisp, high contrast pictures.

Features:
420-800mm f/8.3-16 Manual Telephoto Zoom Lens.
Manual Focus Telephoto Zoom Lens to use with DSLR SLR Cameras.
Multi Coated low-dispersion glass, anti-reflection coating.
Create Sharp High Quality Images.
Comes with Lens Pouch and Protective Caps.

Note: A camera-specific T-mount adapter ring is required to attach this to your camera body. (Adapter ring is included in the package.)

Specifications:
Lens Construction: 4 Elements in 2 Groups
Aperture Range: 8.3-16
Focal length: 420-800mm
Minimum Focusing Distance: 1.5m / 4.92ft
Filter diamater: 67mm
Package size: 27 * 9 * 9cm / 10.6 * 3.5 * 3.5in
Package weight: 860g / 1.9LB

Package Content:
1 * 420-800mm f/8.3-16 Manual Telephoto Zoom Lens with retail package
1 * T Mount to Canon
User Instruction: This is a MANUAL lens, no electronic contacts, that's why your camera will not recognize the lens, it requires full manual settings on camera & lens body., please switch to MF MODE in order to use this lens correctly. Tips to use 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 telephoto zoom lens to use with DSLR SLR cameras.
ADVANCED OPTICS / SUPER ZOOM / SOLID FULL METAL CONSTRUCTION / MANUAL FOCUSING
420-800mm f/8.3-16 Manual Telephoto Zoom Lens for Canon EOS Rebel T7, T7i, T6, T6i, T5, T5i, SL2, 80D, 77D, 700D, 70D, 60D, 50D, 5D, 6D, 7D, 600D, 550D, 200D, 150D, 100D, 1300D, 1400D, 1500D etc