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  2. M42 lens mount - Wikipedia

    en.wikipedia.org/wiki/M42_lens_mount

    The M42 lens mount is a screw thread mounting standard for attaching lenses to 35 mm cameras, primarily single-lens reflex models. It is more accurately known as the M42 × 1 mm standard, which means that it is a metric screw thread of 42 mm diameter and 1 mm thread pitch .

  3. Lenses for SLR and DSLR cameras - Wikipedia

    en.wikipedia.org/wiki/Lenses_for_SLR_and_DSLR...

    The M42 lens mount is a screw thread mounting standard for attaching lenses to 35 mm cameras, primarily single-lens reflex models. It is more accurately known as the M42 × 1 mm standard, which means that it is a metric screw thread of 42 mm diameter and 1 mm thread pitch.

  4. Lens mount - Wikipedia

    en.wikipedia.org/wiki/Lens_mount

    A lens mount is an interface ... Screw Photography Asahiflex: M42: 45.46 mm 35 mm: 42 mm 1 mm Screw Photography Praktica, [11] Pentax, Zenit B4-mount: 48 mm

  5. List of Pentax products - Wikipedia

    en.wikipedia.org/wiki/List_of_Pentax_products

    3.3 M42 screw mount lenses. 3.4 Q-mount lenses. 3.5 Auto 110 lenses. 3.6 645 lenses. ... Cameras using the M42 lens mount, also known as the Pentax screw mount.

  6. Pentax (lens) - Wikipedia

    en.wikipedia.org/wiki/Pentax_(lens)

    M42 (screw mount, branded Takumar, all other Pre-K Mount 35mm bodies, e.g. the Pentax Spotmatic) ES M42 Mount (Introduced in 1971. Allows open aperture metering with Super Multi-Coated Takumar lenses with Pentax ES and ESII cameras. 3rd Party ES lenses include Sigma YS, Sigma XQ, Vivitar TX, and Tamron Adaptall mounts.)

  7. Pentax K-mount - Wikipedia

    en.wikipedia.org/wiki/Pentax_K-mount

    M42 lens (Beroflex) with Pentax K-mount adapter. Pentax supplies adapters to fit M42 screw-mount lenses, as do several third-party manufacturers. The M42 screw-mount system was used by Pentax prior to the introduction of the K-mount. Pentax designed the K-mount wide enough to allow an adapter to fit between the M42 thread and the K bayonet.