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William Optics M63(M) to M48(M) Photo Adapter
The William Optics M63 to M48 Photo Adapter provides a precise 80 mm of optical length, creating the correct spacing to achieve focus when imaging without a field flattener. This adapter features M63 female threads on the telescope side and standard M48 male threads on the camera side, making it an essential component for direct-to-camera imaging with many William Optics doublet and triplet refractors.
The 80mm Solution for Flattener-Free Imaging
When you remove a field flattener from your imaging train, the focal plane of your telescope shifts significantly inward. This adapter compensates by adding exactly 80 mm of extension, pushing your camera sensor back to the new point of sharp focus. It's the ideal solution for visual-first observers who want to attach a camera for planetary work or casual deep-sky imaging without reinvesting in a full corrective setup.
The trade-off is straightforward: you achieve focus, but without the edge-of-field correction a flattener provides. For imagers using cameras with smaller sensors or those targeting central objects like Jupiter or the Ring Nebula (M57), this is often an acceptable compromise to get a camera attached and working.
M63 Female to M48 Male: Direct Camera Connection
This adapter is engineered for a specific, secure fit. The M63 female threads on the light-in side are designed to screw onto focusers or accessories that terminate in a male M63 thread. The light-out side provides a standard M48x0.75 male thread, the universal standard for connecting to DSLR/mirrorless T-rings and dedicated astronomy cameras.
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Telescope Side Connection: M63 Female Thread (screws onto an M63 male thread).
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Camera Side Connection: M48 Male Thread (screws into a female T-ring or camera nosepiece).
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Build: Machined from black-anodized aluminum to minimize internal reflections and maintain a rigid connection.
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Why do I need the 80mm William Optics Photo Adapter?
You need this adapter specifically when you want to do photography without a field flattener or reducer in the optical path. Removing those components changes the focus point, and this 80 mm extension tube provides the exact distance required to bring a camera sensor to the new focal plane on many William Optics doublet and triplet refractors.
Which telescopes is the WO-P-PAM-63-48 adapter designed for?
This adapter is designed specifically for William Optics doublet and triplet refractors that use an M63 thread on their focuser assembly. It is not a universal part; its 80 mm length is calculated to match the optical requirements of these specific telescopes when a flattener is removed.
What kind of camera can I attach with this M63 to M48 adapter?
The adapter terminates in a standard M48 male thread (also known as a "wide T-mount"). This allows you to connect any camera that can be fitted with a female M48 T-ring, including:
- DSLR and mirrorless cameras (with the appropriate M48 T-ring for your camera brand).
- Most dedicated CMOS and CCD astronomy cameras.
Does the William Optics Photo Adapter correct for field curvature?
No, it does not. This is purely a mechanical extension tube. Its sole purpose is to add 80 mm of length to achieve focus. It contains no optics and will not flatten the field of view. You will see star distortion at the edges of the field, especially with larger camera sensors.
How do I install the William Optics M63 to M48 adapter?
The adapter's M63 female threads screw directly onto the corresponding M63 male thread on your telescope's focuser drawtube or visual back. You then thread your M48 T-ring and camera onto the adapter's M48 male threads.
Is the 80mm length of the WO-P-PAM-63-48 adapter adjustable?
No, it is a fixed-length adapter. The 80 mm optical length is a precise value required to achieve focus on specific William Optics telescopes when their flatteners are removed. It is not designed for general-purpose use where variable spacing is needed.
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| Light-In Side |
M63 (female) |
| Light-Out Side |
M48 (male) |
| Optical Length |
80 mm |
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William Optics M63 to M48 Photo Adapter
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