Great Portrait Lens

Main Specs
  • Lens type: Prime lens
  • Max Format size: Full Frame
  • Focal length: 85 mm
  • Autofocus: No
  • Full time manual: Yes
  • Image stabilization: No
  • Distance scale: Yes
Aperture & Optics
  • Maximum aperture:F1.8
  • Minimum aperture: F22
  • Aperture ring: Yes
  • Elements: 6
  • Groups: 6
  • Special elements / coatings: 1 aspherical element
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Super Telephoto Lens for Astrophotography

Main Specs

  • Lens type: Telephoto zoom lens
  • Max Format size: Full Frame
  • Focal length: 420-800 mm
  • Autofocus: No
  • Full time manual: Yes
  • Image stabilization: No

Aperture & Optics

  • Maximum aperture:F8.3
  • Minimum aperture: F16
  • Aperture ring: No
  • Elements: 4
  • Groups: 2
  • Minimum Focusing Distance: 1.5m / 4.92ft
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Trouble Shooting Tips

When I mount the lens to my camera, it says "lens not attached". How can I solve this issue?

Only MF lenses which have an AutoFocus function will be recognized on camera. Despite the warning, there should be no issues when using the lens in M mode, some mirrorless cameras might require to set the "Release w/o Lens" option in the camera menu to Enable(or Set the Shutter lock option, if available, in the camera menu to Off: no lens).

How long is the product warranty period?

Our warranty policy varies by region and local law. Please contact us via Email:customerservice@lightdow.com

Can I mount full frame lens for APS-C sensor sized cameras?

Yes, it is possible since the image circle of full frame lens is larger than that of APS-C image sensor. However, the angle of view will be narrowed down since only the valid image circle will be captured. 

Can I mount APS-C lens for full frame sensor sized cameras?

The corner of image will be shown in black since the image circle of APS-C lens is smaller than that of full frame image sensor. However, it can be used without dark corners when full frame camera is support with APS-C sensor.

Why do I get all black or white images with this lens?

This is a fully manual lens, set the mode dial to manual (M) & manually set the shutter speed, aperture, ISO and focus.
If your image is too bright, it's overexposed; increase the shutter speed, decrease the ISO on the camera, and use a small aperture on the lens;
If your image is too dark, it's underexposed; slow down the shutter speed, increase the ISO on the camera, and use a large aperture on the lens.