Opteka 6.5mm f/2 Circular Fisheye Lens for Micro Four Thirds

Opteka 6.5mm f/2 Circular Fisheye Lens for Micro Four Thirds

Opteka 6.5mm f/2 Circular Fisheye Lens for Micro Four Thirds

B&H # OPTM6520M43 MFR # OPTM6520M43
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Product Highlights

  • Micro Four Thirds System
  • 13mm (35mm Equivalent)
  • Aperture Range: f/2 to f/22
  • One Super-Low Dispersion Element
  • HD Anti-Reflection Coating
  • Fisheye Design, 190° Angle of View
  • Manual Focus Operation
  • 9-Blade Diaphragm
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Opteka 6.5mm f/2.0 overview

  • 1Description

Producing a truly distinct image quality, the 6.5mm f/2 Circular Fisheye Lens from Opteka is a Micro Four Thirds-mount lens providing a 13mm 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 Micro Four Thirds mirrorless cameras and provides a 13mm 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: 842984103830
In the Box
Opteka 6.5mm f/2 Circular Fisheye Lens for Micro Four Thirds
  • Front and Rear Lens Caps
  • Lens Pouch
  • Microfiber Cloth
  • Limited 5-Year Warranty
  • Table of Contents
    • 1Description

    Opteka 6.5mm f/2.0 specs

    Focal Length 6.5mm
    Comparable 35mm Focal Length: 13 mm
    Aperture Maximum: f/2
    Minimum: f/22
    Camera Mount Type Micro Four Thirds
    Format Compatibility Micro Four Thirds
    Angle of View 190°
    Minimum Focus Distance 1.9" / 4.83 cm
    Magnification Not Specified by Manufacturer
    Maximum Reproduction Ratio Not Specified by Manufacturer
    Optical Design 6 Elements in 5 Groups
    Diaphragm Blades 9
    Autofocus No
    Filter Thread None
    Dimensions (DxL) 2.25 x 2" / 57.15 x 50.80 mm
    Weight 9.4 oz / 266 g
    Packaging Info
    Package Weight 0.95 lb
    Box Dimensions (LxWxH) 3.9 x 3.8 x 3.4"

    Opteka 6.5mm f/2.0 reviews

    6.5mm f/2 Circular Fisheye Lens for Micro Four Thirds is rated 5.0 out of 5 by 2.
    Rated 5 out of 5 by from Great Buy! Sharp, high contrast and color free images. Small light weight package. All metal construction. Impressive multicoatings control flare and stray light extremely well. � Cons: minor play in m4/3 mount. Focus thread friction a bit variable. Non numeric distance scale on focus ring. Aperture scale a bit to narrow to easily access. These are all minor detractions for an otherwise very useful lens. Also note that for m4/3 format the fisheye image is slightly truncated at the top and bottom of the circular image. I highly recommend this lens.
    Date published: 2018-03-16
    Rated 5 out of 5 by from Far better lens than the price would suggest. The lens feels solid and well-built, with smooth action and nice heft. The mount has a little rotational play, as often happens with third-party products, but is not loose. The slip-on lens cap is snug and smooth and yet not prone to coming off. The image is usably sharp from f/2 on, center to corner. Stepped down to f/8, only pixel peepers will be able to complain. The bokeh is a bit wibbly, like with catadioptrics, rather than round and smooth. My copy came without the distance scale. Annoying, but not a practical problem; I've lost the ability to scale-focus along with my youth, so I don't care. The depth of field is deep but not infinite, so I suggest you use magnified view to manually focus at a good medium spot. With the greater-than-180 angle of view, it's very hard to keep the hands and hair out of the image. Takes some practice and a few shots that need to be redone; magnify after shooting to make sure. As often pointed out, there is no aperture click-stop. A bit inconvenient if you don't want to close down too much and lose some sharpness. And no contacts, so lens info will need to be manually entered if needed; I'm not sure how it affects IS, so I would suggested turning off IS when using this lens. I doubt I will use it much, but I always wanted to try a fisheye. Now I have, and this was the perfect lens to try it with, as it does everything I hoped it would. Tip: Try holding the camera portrait for indoor shots.
    Date published: 2018-07-31
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    Opteka 6.5mm f/2.0 Q&A

    Opteka 6.5mm f/2.0 accessories

    Designed for use with:

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