What is the purpose of the William Optics 48mm T-Mount for Sony E?

This T-mount serves one primary function: to connect a Sony E-mount camera (such as those in the Alpha series) to a telescope flattener, reducer, or other accessory that uses a male M48x0.75 thread. It also sets the camera sensor at a precise 36.7 mm distance from the accessory's threads, which is critical for achieving correct back focus.

Why should I choose this M48 T-Mount over a standard M42 T-ring for my Sony A7?

A standard M42 T-ring has a smaller opening that will cause significant vignetting (darkened corners) on the full-frame sensor of a Sony A7 series camera. The larger M48 thread on this William Optics mount provides a wider light path, ensuring the entire sensor is evenly illuminated, which is crucial for high-quality, wide-field astrophotography.

Is the 36.7 mm optical length of this T-Mount important?

Yes, it is extremely important. Most field flatteners and reducers require a specific back focus distance (typically 55mm) to produce sharp stars across the entire field. Sony E-mount cameras have a flange distance of 18mm. This adapter's 36.7 mm length, when added to the camera's 18mm, totals 54.7mm—very close to the 55mm standard. It is specifically designed to achieve perfect spacing with many William Optics correctors.

Which William Optics telescopes is this 48mm T-Mount designed for?

This T-mount is compatible with any William Optics telescope that uses a field flattener or reducer terminating in a male M48 thread. This includes popular models such as RedCat, Fluorostar (FLT), and Gran Turismo (GT) series refractors. Always check your specific flattener's documentation to confirm compatibility.

Will this T-mount work for imaging the Andromeda Galaxy (M31) with my full-frame Sony camera?

Yes, this is an ideal accessory for that exact scenario. The Andromeda Galaxy is a very large target, and a full-frame sensor is needed to capture it fully with many refractors. Using this 48mm T-Mount ensures that the faint outer spiral arms of M31 are not dimmed or cut off by vignetting, which would almost certainly happen with a smaller M42 T-ring.

How do I attach the WO 48mm T-Mount to my imaging train?

First, remove the lens from your Sony E-mount camera. Align the indicator dot on the T-mount with the dot on your camera's bayonet mount and twist to lock it in place, just like a standard lens. Then, you can thread the entire camera and T-mount assembly directly onto the male M48 threads of your telescope's field flattener or reducer.

William Optics Monture en T 48 mm pour Sony E - Noir

William Optics Monture en T 48 mm pour Sony E - Noir

par William Optics

UGC WO-TM-SN-E-M48

$55.00 - $55.00

$55.00

$55.00 - $55.00

$55.00

Égalisation de prix!

Monture en T de 48 mm conçue spécifiquement pour les appareils photo Sony à monture E
Permet une connexion transparente entre votre appareil photo Sony E-mount et votre télescope

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Description

La monture en T William Optics 48 mm pour Sony E (noir) est un accessoire essentiel pour les astrophotographes utilisant des appareils photo Sony à monture E. Cet adaptateur T-Mount permet une connexion sécurisée et précise entre votre appareil photo et votre télescope, vous permettant de capturer facilement des images à couper le souffle du ciel nocturne.

Caméras et télescopes vendus séparément.

Caractéristiques

Spécialement conçu pour les appareils photo Sony à monture E, garantissant une compatibilité et un ajustement sécurisé.

Conçu avec précision pour fournir une connexion stable et fiable entre votre appareil photo et votre télescope.

Construction de haute qualité

Fabriqué à partir de matériaux durables pour résister à une utilisation régulière et garantir la longévité.

Facilité d'utilisation

Simple à attacher et à détacher, ce qui en fait un complément pratique à votre équipement d'astrophotographie.