Sekor

    Sekor is a praised manufacturer of photographic optics that originated in Japan in 1959. It was founded by the talented engineers at the Tomioka Optical Co., most notably by Shojiro Iizawa, who played a key role in establishing the brand. Sekor is well-known for its innovative optical designs, particularly its high-quality camera glass used in both professional and consumer cameras.

    The company’s major product lines include several distinguished photo lenses acclaimed for their sharpness and color accuracy. Some notable models include the Sekor 55mm f/1.4 and the Sekor 135mm f/2.8, which gained popularity among photographers for their exceptional performance.

    Sekor lenses were marketed primarily in Japan and various international markets, becoming part of the larger Yashica brand, which they were associated with during the 1970s and 1980s. This partnership helped boost their presence in the competitive photography sector.

    A significant moment in the company’s history occurred in 1983 when Yashica merged with Kyocera. This acquisition allowed Sekor to expand its reach and evolve its offerings, while still being synonymous with quality optics. Today, while Sekor may not be an independent brand, its legacy continues under Kyocera.

    Although the brand is not as active today as it once was, its reputation for high-quality photographic lenses endures. Many modern lens manufacturers draw inspiration from Sekor’s optical designs. Interesting facts include that Sekor lenses were particularly popular amongst hobbyists and professional photographers alike, making them highly collectible items today.

    Throughout its history, Sekor has collaborated with various camera manufacturers, enhancing its optics through shared technologies and innovations. Their impact on photography is significant, as many of their designs influenced the development of subsequent generation lenses in terms of performance and reliability.

    In terms of marketing, Sekor targeted enthusiasts and professionals, emphasizing the reliability and quality of their optics. Over the years, their branding evolved, reflecting modern design philosophies and advancements in technology, yet still retaining a classic feel that appeals to vintage lens lovers.

    Sekor Lenses

    Auto Mamiya/Sekor 200mm f/3.5
    Auto Mamiya/Sekor 200mm f/3.5
    ~$49
    Auto Mamiya/Sekor 200mm f/3.5 is a manual focus telephoto lens for full frame cameras.<p><b>Optical design</b></p>Great choice mainly for good light conditions Has 8 aperture blades, with this amount of aperture blades you will be satisfied with the result.<p><b>Physical characteristics</b></p> With a lens filter diameter of 67 mm commonly filter size, presents numerous filter possibilities.
    Auto Mamiya Sekor 35mm f/2.8
    Auto Mamiya Sekor 35mm f/2.8
    ~$99
    Auto Mamiya Sekor 35mm f/2.8 is a manual focus wide angle lens for full frame cameras.<p><b>Optical design</b></p>Bright lens thanks to the high aperture value Has 8 aperture blades, with this amount of aperture blades you will be satisfied with the result.<p><b>Physical characteristics</b></p> With a lens filter diameter of 49 mm commonly filter size, offers a wide range of filter options.
    Auto Mamiya Sekor 55mm f/1.4
    Auto Mamiya Sekor 55mm f/1.4
    ~$145
    Auto Mamiya Sekor 55mm f/1.4 is a manual focus prime lens for full frame cameras.<p><b>Optical design</b></p>Wide open, subjects located outside the depth of field are shown very blurred. Has 6 aperture blades, this number of blades are commonly used. Having rounded blades provides out of focus circle shape closer to a circle.<p><b>Physical characteristics</b></p>Weights 302 grams so plan ahead, carry only if really necessary. With a lens filter diameter of 55 mm commonly filter size, gives you a variety of filter options. 49 mm long, this small lens should be always in the camera bag.
    Auto Mamiya-Sekor CS 28mm f/2.8
    Auto Mamiya-Sekor CS 28mm f/2.8
    ~$130
    Auto Mamiya-Sekor CS 28mm f/2.8 is a manual focus wide angle lens for full frame cameras.<p><b>Optical design</b></p>Bright lens thanks to the high aperture value Has 8 aperture blades, with this amount of aperture blades you will be satisfied with the result.<p><b>Physical characteristics</b></p>Weights 170 grams so convinient to carry. 30 mm long, this small lens should be always in the camera bag. With a lens filter diameter of 49 mm commonly filter size, offers a wide range of filter options.
    Auto Mamiya-Sekor CS 50mm f/1.4
    Auto Mamiya-Sekor CS 50mm f/1.4
    ~$175
    Auto Mamiya-Sekor CS 50mm f/1.4 is a manual focus prime lens for full frame cameras.<p><b>Optical design</b></p>Wide open, subjects located outside the depth of field are shown very blurred. Has 8 aperture blades, with this amount of aperture blades you will be satisfied with the result.<p><b>Physical characteristics</b></p> With a lens filter diameter of 49 mm commonly filter size, gives you a variety of filter options. Weights 205 grams so consider putting to your camera bag.
    Auto Mamiya-Sekor CS 50mm f/1.7
    Auto Mamiya-Sekor CS 50mm f/1.7
    ~$32
    Auto Mamiya-Sekor CS 50mm f/1.7 is a manual focus prime lens for full frame cameras.<p><b>Optical design</b></p>Has 8 aperture blades, with this amount of aperture blades you will be satisfied with the result. Wide open, subjects located outside the depth of field are shown very blurred.<p><b>Physical characteristics</b></p> With a lens filter diameter of 49 mm commonly filter size, presents numerous filter possibilities. Weights 145 grams so convinient to carry. 22 mm long, this small lens should be always in the camera bag.
    Mamiya / Sekor 135mm f/2.8 Auto
    Mamiya / Sekor 135mm f/2.8 Auto
    ~$54
    Mamiya / Sekor 135mm f/2.8 Auto is a manual focus prime lens for full frame cameras.<p><b>Optical design</b></p>Has 6 aperture blades, this number of blades are commonly used. Having rounded blades provides out of focus circle shape closer to a circle. Bright lens thanks to the high aperture value<p><b>Physical characteristics</b></p>86 mm long, requires consideration if you want to carry in the camera bag. With a lens filter diameter of 55 mm commonly filter size, offers a wide range of filter options. Weights 310 grams so plan ahead, carry only if really necessary.
    Mamiya/Sekor 135mm f/2.8 Auto (TL)
    Mamiya/Sekor 135mm f/2.8 Auto (TL)
    ~$77
    Mamiya/Sekor 135mm f/2.8 Auto (TL) is a manual focus prime lens for full frame cameras.<p><b>Optical design</b></p>Has 8 aperture blades, with this amount of aperture blades you will be satisfied with the result. Bright lens thanks to the high aperture value<p><b>Physical characteristics</b></p> With a lens filter diameter of 55 mm commonly filter size, offers a wide range of filter options. Weights 395 grams so plan ahead, carry only if really necessary.
    Mamiya / Sekor 135mm f/3.5 Auto
    Mamiya / Sekor 135mm f/3.5 Auto
    ~$50
    Mamiya / Sekor 135mm f/3.5 Auto is a manual focus prime lens for full frame cameras.<p><b>Optical design</b></p>Average brightness in this league Has 6 aperture blades, this number of blades are commonly used. Having rounded blades provides out of focus circle shape closer to a circle.<p><b>Physical characteristics</b></p> With a lens filter diameter of 49 mm commonly filter size, provides a range of filter options. Weights 375 grams so plan ahead, carry only if really necessary.
    Mamiya Sekor 14mm f/3.5 Fish-Eye SX Filtermatic Auto
    Mamiya Sekor 14mm f/3.5 Fish-Eye SX Filtermatic Auto
    ~$261
    Mamiya Sekor 14mm f/3.5 Fish-Eye SX Filtermatic Auto is a manual focus ultra-wide lens for full frame cameras.<p><b>Optical design</b></p>Average brightness in this league Has 6 aperture blades, this number of blades are commonly used. Having rounded blades provides out of focus circle shape closer to a circle.
    Mamiya-Sekor 180mm f/4.5
    Mamiya-Sekor 180mm f/4.5
    ~$137
    Mamiya-Sekor 180mm f/4.5 is a manual focus telephoto lens for medium format slr cameras.<p><b>Optical design</b></p>Great choice mainly for good light conditions
    Mamiya Sekor 28mm f/2.8 Auto
    Mamiya Sekor 28mm f/2.8 Auto
    ~$155
    Mamiya Sekor 28mm f/2.8 Auto is a manual focus wide angle lens for full frame cameras.<p><b>Optical design</b></p>Bright lens thanks to the high aperture value Has 8 aperture blades, with this amount of aperture blades you will be satisfied with the result.<p><b>Physical characteristics</b></p> With a lens filter diameter of 58 mm commonly filter size, presents numerous filter possibilities. 30 mm long, this small lens should be always in the camera bag. Weights 245 grams so consider putting to your camera bag.
    Mamiya-Sekor 35mm f/2.8
    Mamiya-Sekor 35mm f/2.8
    ~$172
    Mamiya-Sekor 35mm f/2.8 is a manual focus wide angle lens for full frame cameras.<p><b>Optical design</b></p>Bright lens thanks to the high aperture value Has 8 aperture blades, with this amount of aperture blades you will be satisfied with the result.<p><b>Physical characteristics</b></p>Weights 225 grams so consider putting to your camera bag. With a lens filter diameter of 52 mm commonly filter size, presents numerous filter possibilities.
    Mamiya/Sekor 400mm f/6.3
    Mamiya/Sekor 400mm f/6.3
    ~$139
    Mamiya/Sekor 400mm f/6.3 is a manual focus ultra telephoto lens for full frame cameras.<p><b>Optical design</b></p>Has 15 aperture blades, this lens has a beautiful bokeh.<p><b>Physical characteristics</b></p>326 mm long, with this size carry only if you use it. Weights 935 grams so it is a heavy lens, consider using its own lens bag. With a lens filter diameter of 72 mm you are one step from the next standard filter size, buy step-up ring and bigger filter but you can chose from plenty options.
    Mamiya-Sekor 50mm f/1.4 Auto
    Mamiya-Sekor 50mm f/1.4 Auto
    ~$175
    Mamiya-Sekor 50mm f/1.4 Auto is a manual focus prime lens for full frame cameras.<p><b>Optical design</b></p>Has 6 aperture blades, this number of blades are commonly used. Having rounded blades provides out of focus circle shape closer to a circle. Wide open, subjects located outside the depth of field are shown very blurred.<p><b>Physical characteristics</b></p> With a lens filter diameter of 55 mm commonly filter size, offers a wide range of filter options. Weights 305 grams so plan ahead, carry only if really necessary.
    Mamiya/Sekor 50mm f/2.8 Auto
    Mamiya/Sekor 50mm f/2.8 Auto
    ~$204
    Mamiya/Sekor 50mm f/2.8 Auto is a manual focus prime lens for full frame cameras.<p><b>Optical design</b></p>Bright lens thanks to the high aperture value Has 5 aperture blades, this number of blades are commonly used. Having rounded blades provides out of focus circle shape closer to a circle.<p><b>Physical characteristics</b></p>Weights 175 grams so convinient to carry. 36 mm long, this small lens should be always in the camera bag. With a lens filter diameter of 52 mm commonly filter size, provides a range of filter options.
    Mamiya-Sekor 50mm f/2 Auto
    Mamiya-Sekor 50mm f/2 Auto
    ~$35
    Mamiya-Sekor 50mm f/2 Auto is a manual focus prime lens for full frame cameras.<p><b>Optical design</b></p>Bright lens thanks to the high aperture value Has 6 aperture blades, this number of blades are commonly used. Having rounded blades provides out of focus circle shape closer to a circle.<p><b>Physical characteristics</b></p> With a lens filter diameter of 52 mm commonly filter size, provides a range of filter options. 39 mm long, this small lens should be always in the camera bag. Weights 208 grams so consider putting to your camera bag.
    Mamiya Sekor 55mm f/1.8
    Mamiya Sekor 55mm f/1.8
    ~$45
    Mamiya Sekor 55mm f/1.8 is a manual focus prime lens for full frame cameras.<p><b>Optical design</b></p>Has 6 aperture blades, this number of blades are commonly used. Having rounded blades provides out of focus circle shape closer to a circle. Wide open, subjects located outside the depth of field are shown very blurred.<p><b>Physical characteristics</b></p> With a lens filter diameter of 52 mm commonly filter size, offers a wide range of filter options. 46 mm long, this small lens should be always in the camera bag. Weights 202 grams so consider putting to your camera bag.
    Mamiya-Sekor 55mm f/1.8 Auto
    Mamiya-Sekor 55mm f/1.8 Auto
    ~$60
    Mamiya-Sekor 55mm f/1.8 Auto is a manual focus prime lens for full frame cameras.<p><b>Optical design</b></p>Wide open, subjects located outside the depth of field are shown very blurred. Has 6 aperture blades, this number of blades are commonly used. Having rounded blades provides out of focus circle shape closer to a circle.<p><b>Physical characteristics</b></p> With a lens filter diameter of 52 mm commonly filter size, offers a wide range of filter options.
    Mamiya-Sekor 55mm f/2
    Mamiya-Sekor 55mm f/2
    ~$69
    Mamiya-Sekor 55mm f/2 is a manual focus prime lens for full frame cameras.<p><b>Optical design</b></p>Has 6 aperture blades, this number of blades are commonly used. Having rounded blades provides out of focus circle shape closer to a circle. Bright lens thanks to the high aperture value<p><b>Physical characteristics</b></p> With a lens filter diameter of 52 mm commonly filter size, offers a wide range of filter options. Weights 215 grams so consider putting to your camera bag.

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