Samyang 8mm f/3.5 Ultra Wide-Angle Fisheye, Manual Focus Lens for Pentax K Mount

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About Samyang 8mm F/3.5

The Samyang 8mm f/3.5 Ultra Wide-Angle Fisheye Lens for Pentax K Mount gives you a 180deg. view with dramatic, exaggerated perspective. With a hybrid aspherical lens and multi-layer coating, you can produce sharply defined images with a minimum of flare and ghosting. The 8mm lens focuses as close as 1' (0.30m) from the lens and has a built-in petal lens hood.

Samyang 8mm F/3.5 Features

  • Ultra wide-angle 8mm fisheye lens with exaggerated perspective and approximately 180deg. angle of view, for dramatic effects
  • Lens is constructed with hybrid aspherical lenses for outstanding, sharply defined images
  • Lens features super multi-layer coating to reduce flare and ghost images
  • Lens has a minimum focusing distance of 12" (30.48 cm) for enhanced close-up shots
  • Lens includes a built-in petal-type lens hood

Samyang 8mm F/3.5 Specifications

Focal Length
8 mm
Maximum: f/3.5
Minimum: f/22
Camera Mount Type
Pentax K
Format Compatibility
DSLR (APS-C Sensor)
Angle of View
Minimum Focus Distance
1.0' (0.30cm)
Image Stabilization
Tripod Collar
2.95x2.98" (7.49x7.56cm)
14.60oz / 413g
Mfr #

Samyang 8mm F/3.5 Reviews

Reviewed by 2 customers


Awesome Fisheye by Samyang


from Gulf Coast  -  Semi-pro Photographer

I use this lens on a Nikon D90 and a D7100. It is sharp sharp sharp!!! This is not an autofocus lens so just set the lens focus at 3' and leave it there. That ensures you get from very close all the way to infinity. If you're using a Nikon ...get the Samyang with the auto chip. I have mine set at f8 and it works perfectly.


awesome lens; great price


from Niagara Falls, Ontario  -  Photo Enthusiast

Had some concerns about Manual Focus. Read some blogs on the lens. VERY impressed with how easy it is to use. 4 steps --- Set the lens on f=8.; and set the focus on infinity. And everything beyond one foot from the lens is in perfect focus. Set your camera on A (Aperture setting) and go into the Menu to allow the camera to operate as if there was no lens attached. And take awesome photos. I ignored the instructions that came with the lens; as I was intructed to do in some of the blogs. I use mine with a Sony a55 and a77. And don't forget to re-change your camera settings when you go back to regular lenses.

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