Quick Summary
The BENOISON 420-800mm telephoto lens is a manual focus lens for Nikon DSLR cameras with an F mount. It has a stated focal length range of 420-800 mm and a non-adjustable aperture value of F/8.3-16, with 62 mm filter size.
This lens is described as a full-frame lens and uses manual focusing only. It has no electronic contacts and no autofocus motor, so it is intended for buyers who are comfortable working with manual focus and checking camera settings for an F-mount setup.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | BENOISON, the stated brand name for the lens. |
| Product type | Manual focus telephoto lens for Nikon DSLR cameras. |
| Mount | F mount, so the camera needs to accept Nikon F-mount lenses. |
| Focal length | 420-800 mm, giving a long telephoto range. |
| Aperture | F/8.3-16, stated as non-adjustable. |
| Filter size | 62 mm, which matters if you plan to use filters. |
| Focusing | Manual focus only, with no autofocus motor. |
| Contacts | No electronic contacts, so camera settings need to suit a manual lens setup. |
What to Compare Before Buying
- Camera mount: Check that your Nikon DSLR accepts F-mount lenses.
- Focusing style: This is a manual focus lens, so compare it with the way you prefer to work.
- Focal length: The 420-800 mm range is for long telephoto use, so confirm that this range matches your subject distance needs.
- Filter size: If you use filters, check that 62 mm is the size you want.
Compatibility, Size and Fit
This lens is listed for Nikon D-series DSLR cameras, including models such as D850, D7500, D5600, D3400, D500, D7200, D5500, D750, D810, D5300, D7100, D5200, D600 and D3200, along with other Nikon D-series bodies named in the product text. It is an F-mount lens, so exact camera compatibility should still be checked against your body before choosing.
Because it has no electronic contacts and no autofocus motor, it is a manual lens setup rather than an autofocus option. The camera may display F– on some bodies when using manual lenses.
Before You Decide
Confirm that your camera body accepts Nikon F-mount lenses and that you are happy using a manual focus lens. Check the 420-800 mm range, the fixed F/8.3-16 aperture and the 62 mm filter size against your intended use. If you need autofocus or electronic contacts, this is not the right type of lens.


