Baader M54 Heavy Duty Quick Change System

Stock count is accurate & shown in real time.
- This item is out of stock.
- Sign up for back-in-stock alerts to be notified when this item becomes available (account login required).
- This item is out of stock.
- Sign up for back-in-stock alerts to be notified when this item becomes available (account login required).
Contiguous US / Lower 48:
Free shipping applies to orders over $50 using our chosen carrier/method. Faster paid options are available at checkout.
Alaska, Hawaii & US Territories:
Free shipping applies to many—but not all—products. Enter your ZIP code in cart or upon checkout to confirm options and costs.
International:
International orders do not qualify for free shipping. Shipping, duties, brokerage, tariffs, and taxes are the customer’s responsibility. Some items may be restricted due to export, size, or manufacturer limitations.
Baader Planetarium Heavy Duty M54 Quick Changing System
The Baader M54 Heavy-Duty Quick Change System combines the M54 Quick Changer and Change Ring into a precision-engineered coupling designed for fast, secure swapping of imaging accessories. Using Baader’s S54 dovetail interface, it allows tool-free attachment and rotation of cameras, filter wheels, or flatteners while maintaining perfect optical alignment. This system is ideal for astrophotographers who frequently reconfigure their setups and need both stability and speed.
M54i Quick Changer with S54i Dovetail receptor
- Built-in M54 female thread
- 11 mm (0.43 in) optical length
- High-quality brass pressure piece
- Rotation-proof mounting of heavy accessories, as well as the easy rotation of cameras, bino-viewers, and other accessories
- Holds the M54a quick changing ring with dovetail firmly in place
M54a Change Ring with S54a ring dovetail
- M54 external thread one side
- 50 mm (1.97 in) dovetail on the other
- 4 mm (0.15 in) optical length
- Crafted from high-quality steel
- Fits between any M54 thread and allows for the exchange or easy alignment of accessories


Specifications
- Adapters Family: M54 System
- Optical Length: 15 mm (0.59 in) - when using both adapters
- Type of Adapter: Same-Thread Adapter
- Inner Connection (lens side): M54x0.75
- Inner Connection (eyepiece/camera-side): S54
- Clear Aperture: 50 mm (1.97 in)
- Outer Diameter: 65 mm (2.56 in)
- Net weight: 0.10 kg (3.53 oz)
- Screw Type: Large clamping screw with brass thrust piece
- Both adapters sold separately: M54i Quick Changer & M54a Change Ring with S54a ring dovetail
Other Information
- Country of Manufacture: China
Baader Planetarium Heavy Duty M54 Quick Changing System
The Baader M54 Heavy-Duty Quick Change System combines the M54 Quick Changer and Change Ring into a precision-engineered coupling designed for fast, secure swapping of imaging accessories. Using Baader’s S54 dovetail interface, it allows tool-free attachment and rotation of cameras, filter wheels, or flatteners while maintaining perfect optical alignment. This system is ideal for astrophotographers who frequently reconfigure their setups and need both stability and speed.
M54i Quick Changer with S54i Dovetail receptor
- Built-in M54 female thread
- 11 mm (0.43 in) optical length
- High-quality brass pressure piece
- Rotation-proof mounting of heavy accessories, as well as the easy rotation of cameras, bino-viewers, and other accessories
- Holds the M54a quick changing ring with dovetail firmly in place
M54a Change Ring with S54a ring dovetail
- M54 external thread one side
- 50 mm (1.97 in) dovetail on the other
- 4 mm (0.15 in) optical length
- Crafted from high-quality steel
- Fits between any M54 thread and allows for the exchange or easy alignment of accessories


Specifications
- Adapters Family: M54 System
- Optical Length: 15 mm (0.59 in) - when using both adapters
- Type of Adapter: Same-Thread Adapter
- Inner Connection (lens side): M54x0.75
- Inner Connection (eyepiece/camera-side): S54
- Clear Aperture: 50 mm (1.97 in)
- Outer Diameter: 65 mm (2.56 in)
- Net weight: 0.10 kg (3.53 oz)
- Screw Type: Large clamping screw with brass thrust piece
- Both adapters sold separately: M54i Quick Changer & M54a Change Ring with S54a ring dovetail
- 1x M54i Quick Changer with S54i Dovetail receptor
- 1x M54a Change Ring with S54a ring dovetail
- 1x M54d Dust Cap
Baader Planetarium Heavy Duty M54 Quick Changing System
The Baader M54 Heavy-Duty Quick Change System combines the M54 Quick Changer and Change Ring into a precision-engineered coupling designed for fast, secure swapping of imaging accessories. Using Baader’s S54 dovetail interface, it allows tool-free attachment and rotation of cameras, filter wheels, or flatteners while maintaining perfect optical alignment. This system is ideal for astrophotographers who frequently reconfigure their setups and need both stability and speed.
M54i Quick Changer with S54i Dovetail receptor
- Built-in M54 female thread
- 11 mm (0.43 in) optical length
- High-quality brass pressure piece
- Rotation-proof mounting of heavy accessories, as well as the easy rotation of cameras, bino-viewers, and other accessories
- Holds the M54a quick changing ring with dovetail firmly in place
M54a Change Ring with S54a ring dovetail
- M54 external thread one side
- 50 mm (1.97 in) dovetail on the other
- 4 mm (0.15 in) optical length
- Crafted from high-quality steel
- Fits between any M54 thread and allows for the exchange or easy alignment of accessories


Specifications
- Adapters Family: M54 System
- Optical Length: 15 mm (0.59 in) - when using both adapters
- Type of Adapter: Same-Thread Adapter
- Inner Connection (lens side): M54x0.75
- Inner Connection (eyepiece/camera-side): S54
- Clear Aperture: 50 mm (1.97 in)
- Outer Diameter: 65 mm (2.56 in)
- Net weight: 0.10 kg (3.53 oz)
- Screw Type: Large clamping screw with brass thrust piece
- Both adapters sold separately: M54i Quick Changer & M54a Change Ring with S54a ring dovetail
Other Information
- Country of Manufacture: China
- 1x M54i Quick Changer with S54i Dovetail receptor
- 1x M54a Change Ring with S54a ring dovetail
- 1x M54d Dust Cap

Baader M54 Heavy Duty Quick Change System
