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June 24th: Store is closed for Quebec National Holiday. Orders placed that day will ship on June 25th.
ZWO Nikon-T2 Adapter

ZWO Nikon-T2 Adapter

by ZWO
SKU ZWO-Nikon-T2-II
$69.00 - $69.00
$69.00
$69.00 - $69.00
$69.00
Price Match Policy!
  • Attaches Nikon F-mount lenses to ZWO cameras
  • Standard M42x0.75 T-thread camera interface
  • 29mm main body length for 17.5mm back-focus cameras
  • Includes 5mm extender for 12.5mm back-focus cameras
  • 2-Year Manufacturer Warranty
2 in stock
Worldwide Shipping
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • ZWO Nikon T2 Adapter for ASI Cameras

    The ZWO Nikon-T2 II Adapter connects your Nikon F-mount lenses to any ZWO ASI camera with a standard M42 T-thread, providing a rigid connection backed by a 2-year warranty. Its primary 29mm body is precisely machined to achieve the correct 46.5mm Nikon flange distance when paired with a camera that has 17.5mm of back focus. For cameras with 12.5mm of back focus, the included 5mm T2 extender creates the necessary 34mm of spacing for a sharp, focused field across the entire frame.

    Achieve Perfect 46.5mm Flange Distance

    This adapter system is engineered to solve the primary challenge of using DSLR lenses on dedicated astronomy cameras: achieving the exact flange-to-sensor distance the lens was designed for. By combining the 29mm adapter body with ZWO cameras having 17.5mm of back focus (like most cooled models), you precisely hit the 46.5mm distance required by Nikon F-mount lenses. This ensures sharp stars corner-to-corner, free from the aberrations caused by incorrect spacing.

    Configurable Spacing: 29mm and 34mm Paths

    ZWO cameras come in two primary back-focus configurations, and this adapter accommodates both. The main 29mm adapter is the correct length for cooled cameras with 17.5mm of back focus. For uncooled planetary or guide cameras with 12.5mm of back focus, simply add the included 5mm T2 extender between the adapter and the camera to establish the required 34mm total adapter length.

    • 17.5mm Back-Focus Cameras: Use the 29mm adapter body only.
    • 12.5mm Back-Focus Cameras: Use the 29mm adapter body plus the 5mm T2 extender.

    Designed for APS-C and Smaller Sensors

    With a clear aperture of 42mm, the Nikon-T2 adapter is capable of fully illuminating sensors up to APS-C size without vignetting from the adapter itself. This makes it an ideal choice for pairing wide-angle or telephoto Nikon glass with popular ZWO cameras. Note that this adapter is not recommended for full-frame sensors like those in the ASI6200 or ASI2400, as the M42 T-thread itself becomes the limiting factor for the image circle.

  • How do I know if I need the 5mm extender for my ZWO camera?

    You need the 5mm T2 extender if your ZWO camera has 12.5mm of native back focus. This typically includes the smaller, uncooled "puck" style planetary and guide cameras. If your camera has 17.5mm of back focus, like most ZWO cooled "Pro" models, you should connect the 29mm adapter directly to the camera without the extender.

    Can I use the ZWO Nikon-T2 Adapter with full-frame cameras like the ASI6200?

    No, this adapter is not recommended for ZWO's full-frame cameras. While the adapter has a 42mm clear aperture, the M42 T-threads on the camera side are too narrow to pass a full-frame image circle without causing significant vignetting. It is designed for cameras with APS-C or smaller sensors.

    Can I use filters with the ZWO Nikon-T2 adapter?

    Yes. The adapter is designed to accept standard 2" (M48x0.75 thread) filters. The filter threads are located inside the adapter, allowing you to install a light pollution or narrowband filter between your Nikon lens and ZWO camera.

    How can I use the ZWO Nikon-T2 adapter to image the Andromeda Galaxy (M31)?

    M31 is a massive target, making it perfect for camera lenses. A common choice is a 200mm or 300mm telephoto lens attached to a camera like the ASI533MC Pro using this adapter. This combination gives you a wide field of view to capture the entire galaxy and its companions, M32 and M110, in a single frame from a portable setup.

    What kind of Nikon lens works best with the ZWO Nikon-T2 adapter for wide-field nebula?

    For large targets like the North America Nebula (NGC 7000) or the Rho Ophiuchi cloud complex, a fast, wide-angle lens is ideal. A high-quality 50mm f/1.8 or 85mm f/1.4 Nikon lens, when stopped down slightly to f/2.8, provides a sharp, flat field that can capture enormous areas of nebulosity in a single shot when paired with a sensitive ZWO camera.

    What is the thread type on the camera side of the ZWO Nikon-T2 adapter?

    The camera side of the adapter uses the universal M42x0.75 T-thread, also known as a T2 thread. This is the standard connection for almost all dedicated astronomy cameras, ensuring broad compatibility across the ZWO ASI camera lineup.

  • SKU ZWO-NIKON-T2-II
    Lens Mount Nikon F-mount
    Camera Mount M42x0.75 (T2-thread)
    Adapter Length 29 mm (Main Body)
    Extender Length 5 mm
    Warranty 2 Years

    • Nikon-T2 II Adapter (29mm)

      × 1

    • T2 Extender (5mm)

      × 1

    • Spacers

      × 4

  • ZWO 2-Year Limited Warranty