Skip to content
PrimaLuceLab M48 Female to T2 Male Adapter

PrimaLuceLab M48 Female to T2 Male Adapter

by PrimaLuceLab
SKU PLL-PL3304842
CA$31.00 - CA$31.00
CA$31.00
CA$31.00 - CA$31.00
CA$31.00
Price Match Policy!
  • Connects female M48x0.75 threads to male T2 (M42x0.75) threads
  • Solves common thread mismatches in imaging trains
  • Durable, all-metal construction for a rigid connection
  • Black anodized finish minimizes internal reflections
  • Low-profile design consumes minimal back focus
2 in stock
Qualifies for FREE Shipping in Canada on orders over $500.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • PrimaLuceLab M48 Female to T2 Male Adapter

    The PrimaLuceLab M48 Female to T2 Male Adapter provides a critical link between the two most common photographic thread standards in astronomy, converting a male M48x0.75 thread to a male T2 (M42x0.75) thread. This all-metal, black-anodized adapter ensures a rigid connection when attaching M48-threaded correctors or accessories to cameras that use the T2 standard.

    Connecting M48x0.75 Accessories to T2 (M42x0.75) Threads

    Many modern field flatteners, reducers, and off-axis guiders feature a male M48x0.75 thread to provide a wide, unvignetted light path for larger sensors. However, most dedicated astronomy cameras and DSLR T-rings still rely on the female T2 (M42x0.75) thread. This adapter bridges that gap, allowing you to create a secure, threaded connection between mismatched components without introducing flexure.

    1 Adapter for 2 Standards: All-Metal, Low-Profile Construction

    Machined entirely from metal and black-anodized to prevent internal reflections, this adapter maintains the mechanical integrity of your imaging train. Its thin profile is designed to consume minimal back focus, a critical consideration when spacing correctors and cameras to precise distances for optimal field correction.

  • What is the PrimaLuceLab M48 to T2 adapter used for?

    This adapter allows you to connect an accessory with a male M48 (48x0.75) thread, like a field flattener or reducer, to a camera, filter wheel, or T-ring that has a female T2 (42x0.75) thread. It converts the larger M48 format down to the smaller, more common T2 standard.

    Can I use this PrimaLuceLab adapter to connect my full-frame field corrector to my ASI533MC Pro camera?

    Yes, this is a perfect application. Full-frame correctors often terminate in a male M48 thread to prevent vignetting, while the ZWO ASI533MC Pro and many similar cameras have a standard female T2-thread interface. This adapter will create the necessary mechanical and optical connection.

    I have a DSLR with a standard T2-ring. Will this adapter let me attach an M48 threaded accessory?

    Absolutely. Your DSLR's T-ring presents a female T2 thread. This adapter provides the male T2 thread to connect to the T-ring, while its female M48 side accepts your M48-threaded accessory, such as a 2" filter drawer or corrector.

    What is the PrimaLuceLab M48 to T2 adapter made of?

    The adapter is machined entirely from metal and features a black anodized finish. This ensures a rigid, secure connection that won't flex under load and helps prevent stray light from reflecting inside your imaging train.

    Does this M48 to T2 adapter add significant length to my imaging train?

    The adapter is designed to be very thin to minimize the amount of back focus it consumes. While any adapter adds some optical path length, this one is engineered to be as low-profile as possible to help you meet the strict spacing requirements of your optical system.

    Why do both M48 and T2 threads exist in astronomy?

    The T2 (M42x0.75) thread has been a long-standing standard for astronomy accessories. The larger M48 (48x0.75) thread, often called the "2-inch filter thread," became popular because it provides a wider, unvignetted opening for larger camera sensors, such as full-frame and APS-C formats. This adapter allows you to use modern wide-aperture optics with cameras and accessories that still use the T2 standard.

  • PrimaLuceLab 1-Year Warranty