Fotodiox Lens Adapter Astro Edition with Leica 6-Bit M-Coding - Compatible with T-Mount (T / T-2) Screw Mount Telescopes to Leica M (LM) Mount

• Description
• Specs
• Compatibility
• Notes

• • Designed with Astro Photographers in Mind, Extension Tube Included for Telescopes
• • Versatile, Dependable, Adaptable - Add Style & Character to your Image
• • Precise Fit and Solid Connection; Lens Has No Play, Gap or Wiggling When Mounted on Adapter and No Adjustments Required
• • Precision All-Metal Construction with Chrome Plated Brass Mounts for Secure and Solid Fit
• • Limited 2-Year Manufacturer Warranty

Whether you're shooting digitally or on film, Fotodiox offers the world's largest selection of lens adapters. Mix camera/lens platforms or reinvigorate vintage glass; Fotodiox has hundreds of ways to mount lenses onto your DSLR or SLR camera. Our adapters deliver infinity focus, manual aperture control, and a sturdy build for lasting quality.

Astro Edition adapters are designed specifically with Astro Photographers in mind and includes an extension tube for focusing with some telescopes which may have problems adjusting focus far enough out. The extension tube is removable revealing a standard T-Mount adapter for telescopes that focus close enough to the mirror or have a Barlow lens installed, or if you want to use T-Mount lenses and accessories as well during the daytime.

The Leica M 6-bit lens coding system works together with firmware in the newer camera bodies (starting with M8) to correct for various lenses. The lens coding is called ‘6-bit coding‘ because six fields in the bayonet ring are marked in black or white to represent a number from 1 to 64 in binary code. The information on the lens is used to help the camera to optimize image quality and this information is also written into the EXIF image file.

More information along with a list of the coding sequences can be found on the Leica Camera Forum Wiki - Leica 6-Bit M-Coding Page.

Putting old lenses onto hew, high-performance DSLR or mirrorless cameras seems counter-intuitive so why would anyone want to? The simple answer is that many older lenses can capture images that have that elusive quality known as character. For photographers or videographers who want to create unique images that express their personal style, character can be even more important than resolution numbers, corner-to-corner sharpness, and other advantages of the near perfect lenses that are quite common today.

The imperfections and aberrations of older lenses are the very strengths that set them apart from modern lenses. Additionally, a fully mechanical lens is likely repairable longer and less expensively than modern focus-by-wire lenses. Old lenses also let you change camera systems, or your mount can get retired and your lenses won’t be bricked. At the extreme case, some mirrorless lenses require firmware updates for every new body, so even if the mount stays around lenses won't stay on that update list forever (for instance Nikon's new E lenses are incompatible with cameras just two generations old).

Fotodiox employs Professional Photographers in every aspect of development and design to create products that are built to last. The Pro line of adapters is crafted to withstand the rigors and demands of the professional photographer. Our adapters are manufactured with precise tolerances, providing a solid, gap free, no wiggle connection for stress free use. No adjustments needed! Fotodiox adapters are meant to be taken off and put back on your camera as much as needed while remaining as precise as the day you bought them.

Fotodiox Pro adapters feature all-metal, no plastic construction to create a secure connection between your glass and camera that will not degrade over time, keeping the lens-camera connection secure with every use. We use chrome plated brass mounts for enhanced durability and reliability. All Fotodiox products are backed by our 24-month Fotodiox Manufacturer Warranty.

• • This adapter is not rangefinder coupled; focusing works best on cameras with live view enabled or by using the lens distance scale.
• • This is a manual adapter, so lens functions that rely on electronic communication with the camera body (autofocus, AE metering, image stabilization, etc.) will be disrupted.
• • Some cameras need to be set a certain way to work with our adapters or you may get a message such as 'Error Lens Not Attached - Check lens'. Please check the support articles on the Fotodiox Knowledge Base for possible solutions on a variety of camera brands.
• • 'Focus-By-Wire' lenses (such as Canon's STM or Nikons AF-P) requires power to engage the manual focus rings on the lens, since manual lens mount adapters do not power the lens, those lenses will not be able to focus.
• • All lenses will focus at least to infinity, some may focus a little past. If your lens is not in focus when the focusing ring is set to the infinity mark, this is due to how Focal Flange Distance (FFD) works and how we must compensate for all lenses of its mount type made over the years in different factories with slight differences in tolerance. Visually focusing using the viewfinder or camera screen is the best way to ensure proper focus - not the distance markings, as they may not match up properly.
• • Set your exposure manually or meter using your camera's Aperture Priority (stop-down) mode.
• • If your lens does not have a manual aperture control ring, the lens aperture will revert to its default position, which depending on the lens is either stopped down to its largest f-stop or opened up to its smallest f-stop.
• • All pictures are for illustration purposes only. Actual product may vary slightly due to ongoing improvements in design.