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Mount adapters

Specialty Mount & Cross Platform Adapters


 Medium format lens on 35 mm 2

Our medium format to digital and film SLR mount adapters use a T mount system, allowing you to use your lenses on a variety of camera bodies (simply order the adapter with a T2 ring for your camera).


Medium format lens on 35 mm 1


Adapt system lenses from one camera manufacturer to another, with perfect centering, alignment, and back focus.

If you use an interchangeable lens DSLR, mirrorless, or medium format camera, the Zörk Mount Adapters maximize the compatibility and interoperability of your camera and lens systems. Sharing lenses has some distinct advantages: you save cost and weight ­ especially if you decide to take both cameras on a job; you use the "sweet spot" (central 2/3) of the medium format lens when mounting it on a smaller system camera (and the smaller 24x36 mm image field helps minimize the effects of lens distortion and aberration). You can also enjoy "classic" manual focus lenses on your current digital camera as well as use lenses not otherwise offered by the camera manufacturer.


Zörk Mount Adapters for medium format lenses come in a variety of front mounts and T system rear mounts for virtually any interchangeable lens camera. You simply select a T2 adapter ring for your camera, attach it to the adapter, and you're ready to use your medium format lenses on your DSLR or mirrorless camera body. The T2 system allows you to use your medium format lenses on more than one camera mount.

With the adapter ring in place, the spacing between the lens and camera body precisely matches the optical register (film plane to lens flange distance) of the original medium format camera, thereby assuring accurate focusing throughout the range from infinity to close up. Zörk's adherence to the narrowest tolerances ensures that focus is as precise and accurate as a native system lens on your camera (not the case with many "consumer" grade adapters).

Yes, there are many lens adapters on the market - but what Zörk's the best? We make ours from aircraft grade aluminum that is anodized for low reflectivity. Moreover, ours offer precise centering and exact lens-flange-to-image plane spacing, so that your adapted lenses will perform optimally on your camera body. Our adapters are designed for rugged professional use, and made to last over years of daily use.

Available medium format system mounts: Hasselblad 500, 200 / 2000 series, Mamiya 645 (manual focus only), Pentacon Six (Zeiss Jena), and Pentax 6X7.

T2 adapter rings are available for virtually interchangeable lens cameras: Canon, Nikon, Sony A and E mount, Olympus/Panasonic m43, Pentax K, Leica M, Samsung, and legacy 35mm film mounts Leica R, M42, as well as C-mount. Inquire about your camera mount, if not listed. When ordering Zörk Mount Adapters, please specify the medium format lens and the camera body you wish to use.


Cross-platform adapters for digital and film cameras

We offer a variety of adapters for using lenses from one camera system on another. Among our most popular are Nikon, Contax, or Leica R for Canon EOS film and digital cameras. We also offer a Pentax 42 SM to Sigma adapter. These are pro-quality, precision adapters that assure precise lens to image plane alignment and will hold up under professional use.


Understanding focal length and image size

Lenses of a given focal length produce the same size image regardless of camera or film format. However, because of the cropping effect of a smaller format relative to the original format for which a lens was designed, a standard medium format lens ­ such as 80 mm, becomes a short telephoto lens on a 35mm camera or a medium telephoto on a 1.5 multiplication factor digital body. What is important to remember is that each focal length has a distinct perspective or 'look' - the rendering of spatial relationships (such as geometric compression or elongation) and depth-of-field at a given aperture. These effects are format-independent (i.e., an 80mm lens, while appearing "normal" on a medium format camera, will produce the same perspective as an 80mm "short telephoto" on a "full frame," 24x36mm sensor digital camera). For this reason, it is more appropriate to describe the effects of a lens in terms of cropping or image size relative to format than "magnification factor," which is commonly used in comparing full frame lens coverage with APS-size digital sensors.

Metering and exposure
The only limitation in adapting a lens to a camera for which it wasn't originally designed is the loss of the auto-diaphragm function. This means that you have to stop down the lens manually for exposure and rely on working-aperture meter readings. Nevertheless, aperture-priority auto exposure systems remain operative as do most metering modes.


Medium Format Cross-platform adapters



Zörk also offers Cross-platform specialty adapters for medium format cameras, such as Pentax 67 or Hasselblad to 645 format cameras from Mamiya, Pentax, and Contax. Other models allow the use of the excellent Zeiss Jena Pentacon 6 lenses on Mamiya, Pentax, or Contax 645 cameras.

For information on pricing see our Product Guide or contact us.



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