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Opteka 6.5mm f/2 Circular Fisheye Lens for Sony E

BH #OPTM6520S • MFR #OPTM6520S
Opteka 6.5mm f/2 Circular Fisheye Lens for Sony E
Key Features
  • Sony E-Mount Lens/APS-C Format
  • 9.75mm (35mm Equivalent)
  • Aperture Range: f/2 to f/22
  • One Super-Low Dispersion Element
Producing a truly distinct image quality, the 6.5mm f/2 Circular Fisheye Lens from Opteka is a Sony E-mount lens providing a 9.75mm equivalent focal length. Its fisheye design realizes an impressive 190° angle of view along with a unique circular image shape and strong distortion for a surreal quality. One super-low dispersion element is featured in the optical design, and helps to minimize color fringing and chromatic aberrations in order to realize high clarity and color accuracy. An HD anti-reflection coating has also been applied to suppress flare and ghosting for greater contrast in bright lighting.
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Opteka 6.5mm f/2 Circular Fisheye Overview

Producing a truly distinct image quality, the 6.5mm f/2 Circular Fisheye Lens from Opteka is a Sony E-mount lens providing a 9.75mm equivalent focal length. Its fisheye design realizes an impressive 190° angle of view along with a unique circular image shape and strong distortion for a surreal quality. One super-low dispersion element is featured in the optical design, and helps to minimize color fringing and chromatic aberrations in order to realize high clarity and color accuracy. An HD anti-reflection coating has also been applied to suppress flare and ghosting for greater contrast in bright lighting.

This 6.5mm f/2 lens is designed for APS-C-format Sony E-mount mirrorless cameras and provides a 9.75mm equivalent focal length.
Distinct fisheye design produces a circular image with a 190° angle of view and strong visual distortion.
Bright f/2 maximum aperture benefits working in low-light conditions.
One super-low dispersion element is used to reduce chromatic aberrations and color fringing for increased clarity and color accuracy.
An HD anti-reflection coating has been applied in order to suppress ghosting and flare for increased contrast and color fidelity when working in strong lighting conditions.
Nine-blade diaphragm produces an 18-point star effect when photographing point light sources.
Manual focus design along with a manual aperture ring offer precise control over both focus and exposure.
All-metal construction is durable and a focus distance scale has been engraved on the lens barrel for pre-focusing needs.
UPC: 842984103854

Opteka 6.5mm f/2 Circular Fisheye Specs

Focal Length
6.5mm (35mm Equivalent: 9.75mm)
Maximum Aperture
f/2
Minimum Aperture
f/22
Lens Mount
Sony E
Lens Format Coverage
APS-C
Angle of View
190°
Minimum Focus Distance
1.9" / 4.83 cm
Optical Design
6 Elements in 5 Groups
Diaphragm Blades
9
Focus Type
Manual Focus
Image Stabilization
No
Filter Size
None
Dimensions (ø x L)
2.25 x 2" / 57.15 x 50.8 mm
Weight
9.4 oz / 266 g
Packaging Info
Package Weight
0.915 lb
Box Dimensions (LxWxH)
3.85 x 3.85 x 3.5"

Opteka 6.5mm f/2 Circular Fisheye Reviews

for its price it is great

By Albert
Rated 3 out of 5
Date: 2021-04-30

just for you to know it is a low quality lens with blurry edges but for its price it is more than enough

love this lens it is such a fun lens

By Ruth
Rated 5 out of 5
Date: 2020-03-19

sharp ,, love it --Just what I was looking for

Excellent for the money

By Alan
Rated 4 out of 5
Date: 2020-03-09

For the price, this is a very good fisheye lens. Note that this lens is manual aperture and focus, although that does not matter much for a fisheye. Fisheyes are not a common use case, so if you want to try one out for cheap, this is ideal.

6.5 mm fisheye

By Kathleen
Rated 5 out of 5
Date: 2019-10-25

It works very well on my Canon M50. I just love the circular effect.

Beautiful!!!

By Julio
Rated 5 out of 5
Date: 2019-07-29

The images from this len is incredibly detailed , and beautiful rendered. This is a fun len to use and easy to focus on my Sony A6300. Using the Sony image magnifier you can easily focus on subject. Its one of my favorite lens.

Okay in small doses

By Robert
Rated 4 out of 5
Date: 2019-07-02

True fish-eye lenses like this (that project a circular image within the frame area in order to achieve full 180 degree view in all directions) are an acquired taste and not suitable for many occasions, but that said if the opportunity arises they can be fun. One this I noticed is that on a bright day, as shown in the examples here, when fully open the lens exhibits a couple of concentric bright bands that don’t appear when it is stopped down. Just something to be aware of. For the price and given its compactness, this lens is certainly worth keeping in your bag if you like this kind of shooting.

poor lens

By Albert
Rated 1 out of 5
Date: 2020-12-22

if you need wide angle and 100% focus on the entire area of your image consider investing some more for a real wide angle form a major brand

Circular framing of all photos

By marianna
Rated 1 out of 5
Date: 2020-08-22

I bought this f2 fisheye lens mostly for astral photography. The (manual) focus is nice and sharp but every image has a circular framing on the wide side and a flat top and bottom. I hate this because I get no image on the corners and thus loose ½ of the sensor imaging area to black corners. I am returning this lens for just this reason.

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question

Is this simply a rebranded meikie 6.5mm lens? Everything I find suggest as such.
Asked by: Anonymous
They are both made by the same manufacturer.
Answered by: Andrea O.
Date published: 2022-06-25

Hi every one. I have HG4 and metabones ...

Hi every one. I have HG4 and metabones speedbosster 0.64 x. And Opteka 6.5mm have with EF-M bayonet and Micro four thitds bayonet. My question is that: Can i use with EF-M bayonet with speedbooster 0.64x on GH4? Because i want receive aperture from F2 to aperture F1 woth metabones sppedbooster 0.64x
Asked by: Anar
This is a question for the manufacturer of the speedbooster. We don't know anything about it.
Answered by: Opteka Support
Date published: 2019-11-19

question

Hey so Im trying to take a photo with this lens and i cant even hear the shutter. Why wont it work for my camera.
Asked by: Isaac M.
What model camera are you using? Most likely, the camera is not recognizing that the lens is mounted on the camera, which sometimes happens with third-party lenses. Make sure the lens is on securely; it has a little play on my camera, and you can jiggle it around to see if there is a point where it works. It occurs to me, It may be mounted wrong; make sure that the white line for the distance scale is on top, and that the lens's mount is flush against the body's mount. If these ideas do not work, you will need to contact your camera's manufacturer, and maybe Opteka, and ask them.
Answered by: Jordan S.
Date published: 2018-08-27

question

is it compatible with Lumix G7?
Asked by: Anonymous
Yes, this lens is compatible with the G7 and will produce the classic circle on black image associated with fisheyes.
Answered by: Anonymous
Date published: 2018-10-24
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