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Kenko F8 Instruction Manual

Summary of F8

  • Page 1

    This is a telephoto lens for a single-lens reflex camera or interchangeable lens mirrorless digital camera, adopting reflective optics to achieve a long focal length within a compact body. Instruction manual 3-9-19 nishi-ochiai, shinjuku-ku, tokyo 161-8570 http://www.Kenkoglobal.Com.

  • Page 2: 1. Name of Each Part

    1. Name of each part [fig. 1 lens with t-mount removed] [fig. 1] 10 1 2 1 5 2 0 3 0 50 1 00 f t m ac ro 3 3 .5 4 5 6 8 1 0 15 3 0 m 1: 3. 5 1 :4 1: 4. 5 10 1 2 1 5 2 0 3 0 50 1 00 f t m ac ro 3 3 .5 4 5 6 8 1 0 15 3 0 m 1: 3. 5 1 :4 1: 4. 5 ② ③ ⑤ ① ④ ⑦ ⑥ ⑧ (inside) ⑨ ＊ the shape of the t-mount varie...

  • Page 3

    2. Attaching the lens to the camera align the indicator marks on the t-mount and the camera, and then turn the lens until you hear a “click.” (for attachment and removal, refer to “attaching the lens” and “removing the lens” in your camera's manual.) check the attached lens for any looseness. Camera...

  • Page 4: 3. T-Mount

    3. T-mount ⑨ outer screw (three locations) ⑩ outer ring ⑪ inner ring you must adjust the position of the t-mount to adjust the position of the lens. Remove the t-mount to attach rear filters to the lens. Use the following procedure to adjust the position of the t-mount or remove the t-mount: turn th...

  • Page 5

    Some cameras must be set up to be to use a manual lens prior to lens attachment. Set up your camera by referring to the information provided below. For details, refer to your camera's manual. 4. Setting up the camera as a general guide, the shutter speed should be in a range of 1/500 to 1/1000 on a ...

  • Page 6: 5. Performance Table

    Brightness lens construction minimum focus distance macro magnification factor filter diameter (diameter of filter at rear of lens) maximum diameter overall length (excluding t-mount) weight (excluding t-mount) f8 (fixed) 2 groups, 6 lenses 1.15 m 1:2.5 67 mm ＊ (30.5 mm) φ74 mm 82mm 340 g 5. Perform...

  • Page 7

    • this lens is small and light, but it's still a telephoto lens with a long focal length. Generally, telephoto lenses are associated with a small angle of view and higher probability of the images becoming blurry due to magnifications of every movement of the lens know as “camera shake”. It's recomm...

  • Page 8

    Attaching the lens ❶ attach the t-mount to the lens and then set the lens on the t-mount to the camera. ❷ provide a t-mount appropriate for your camera. [refer to 3, “t-mount.”] ＊multiple types of mounts may be available depending on the camera brand. For details, contact the camera manufacturer. (f...