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Lightdow Black 420-800mm f/8.3-16 Manual Zoom Super Telephoto Lens + T-Mount for Canon Nikon Sony and other brands of cameras etc DSLR Camera Lenses
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Lightdow Black 420-800mm f/8.3-16 Manual Zoom Super Telephoto Lens + T-Mount for Canon Nikon Sony and other brands of cameras etc DSLR Camera Lenses

- Macro 4/3 China

0 Customer Reviews | Please refer to English description
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Main Features

Very important note:

Full manual lens, no electrical contacts → no auto focus → no anti-shake, more manual exposure experience is required, and the aperture cannot be adjusted

The camera must be set to M mode (pictured above) to use this lens, some may require "Shutter Release: No Lens" in the camera menu.
The camera does not display the aperture value and must be set manually on the lens body.
Telephoto manual lens

Live view focus is recommended for accurate focus. As with all telephoto lenses, a combination of sturdy camera mounts, sturdy tripods, good technique, fast shutter speeds, using a remote and mirror lock is recommended to avoid camera shake for best results.
No matter how good the autofocus is, sometimes manual focus is still the better option for shooting. When used in the right scene, it gives the photographer more control over the photo and, in some cases, can achieve effects not possible with autofocus mode.

Lightdow Camera Lens Series_Additional Lenses
420-800mm f/8.3-16 manual super telephoto zoom lens
Manual focus telephoto zoom lens for DSLR/SLR/mirrorless cameras
Multi-coated low-dispersion glass, anti-reflection coating
Create clear, high-quality images with the included lens pouch and protective cap

Lens structure: 4 elements in 2 groups
Aperture range: 8.3-16
Focal length: 420-800mm
Minimum Focal Length: 1.5m / 4.92ft
Filter diameter: 67mm
Packing size: 27*9*9cm / 10.6*3.5*3.5in
Packing weight: 860g/1.9LB

Manual settings for camera and lens bodies
1) Set the camera to M mode and turn on "Shutter Release: No Lens" (if available)
2) Adjust the lens to your desired aperture/focal length
3) Fine tune the front focus ring to bring the subject into focus and take a picture
If the picture is dark, please follow the steps below to set

Decrease the shutter speed from 1/500 of a second to 1/100 of a second or slower by 1/50, etc.
Increase the ISO number from ISO 100 to ISO 200/400/800 etc.
Use Remote Switches and Tripods to Improve Image Stabilization
Switch positions to allow more light to enter the camera imaging sensor through the lens
MC technology

We applied UMC technology to minimize flare and ghosting, resulting in clear, fresh color images.

Zoom function
Adjustable locking system from 420mm to 800mm focal length makes it easy to set the focal length you want.

Detachable T-ring design
The T-Mount Adapter allows you to attach your DSLR/SLR camera to lenses, telescopes, microscopes, magnifiers and other equipment with T2 universal threaded mounts.


Minimum Aperture
Focal Length
Number of Diaphragm Blades
4 Blades
Focus Mode
Manual Focus
Launch Date
Lens UV Filter Size
Model Number
Zoom Lens
Maximum Aperture
Scene Type
Still Life,Scenery,Travel
Lens Type
Full Frame
Lens Stabilization Type
Focus Type
View more

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