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Spacer Rings, Extensions & Adapters

Spacer Rings, Extensions & Adapters will help you achieve a correct back focus. There is many format and size for those rings and adapters.

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SVBONY Focuser Adapter M42X0.75 for 1.25" Eyepieces (F9163A) - Astronomy Plus
SVBONY Focuser Adapter M42X0.75 for 1.25" Eyepieces (F9163A) - Astronomy Plus Save $4.05 Save $0.00
$27.00
$27.00 - $27.00
$27.00
$22.95
$22.95 - $22.95
$22.95

SVBONY Focuser Adapter M42X0.75 for 1.25" Eyepieces (F9163A)

SVBONY Focuser Adapter M42X0.75 for 1.25" Eyepieces Reflection telescope universal focuser adapter apply to accessories with M42x0.75 male thread ...

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$27.00
$27.00 - $27.00
$27.00
$22.95
$22.95 - $22.95
$22.95
Save $4.05 Save $0.00
SVBONY SCT to 2inch Eyepiece Adapter (W9120A) - Astronomy Plus
SVBONY SCT to 2inch Eyepiece Adapter (W9120A) - Astronomy Plus Save $3.90 Save $0.00
$26.00
$26.00 - $26.00
$26.00
$22.10
$22.10 - $22.10
$22.10

SVBONY SCT to 2inch Eyepiece Adapter (W9120A)

SVBONY SV159 SCT to 2inch Eyepiece Adapter SVBONY SV159 SCT to 2" Eyepiece suitable for all schmidt-cassegrains telescope Brass Ring inside the tu...

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$26.00
$26.00 - $26.00
$26.00
$22.10
$22.10 - $22.10
$22.10
Save $3.90 Save $0.00
SVBONY 1.25/2" T to C Mount Tube Adapter - Astronomy Plus
SVBONY 1.25/2" T to C Mount Tube Adapter - Astronomy Plus Save up to $2.25 Save $0.00
$12.00 - $15.00
$12.00 - $15.00
$12.00
$10.20 - $12.75
$10.20 - $12.75
$10.20

SVBONY 1.25/2" T to C Mount Tube Adapter

SVBONY SV163 1.25/2" T to C Adapter The Svbony Type C Mount Tube Adapter is available in three sizes and can be mounted on any standard 1.25 ", 2...

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$12.00 - $15.00
$12.00 - $15.00
$12.00
$10.20 - $12.75
$10.20 - $12.75
$10.20
Save up to $2.25 Save $0.00
SVBONY M48 to M42 Knurling Design Adapter (W9100A) - Astronomy Plus
SVBONY M48 to M42 Knurling Design Adapter (W9100A) - Astronomy Plus Save $2.10 Save $0.00
$14.00
$14.00 - $14.00
$14.00
$11.90
$11.90 - $11.90
$11.90

SVBONY M48 to M42 Knurling Design Adapter (W9100A)

SVBONY SV130 M48 to M42 Knurling Design Adapter SV130 black M48 to M42 knurling design telescope adapter Features All metal construction and anod...

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$14.00
$14.00 - $14.00
$14.00
$11.90
$11.90 - $11.90
$11.90
Save $2.10 Save $0.00
SVBONY 0.965'' to M42 T-adapter (F9195A) - Astronomy Plus
SVBONY 0.965'' to M42 T-adapter (F9195A) - Astronomy Plus
Save $2.10 Save $0.00
$14.00
$14.00 - $14.00
$14.00
$11.90
$11.90 - $11.90
$11.90

SVBONY 0.965'' to M42 T-adapter (F9195A)

SVBONY SV124 0.965'' to M42 T-adapter Svbony SV124 black 0.965'' to M42x0.75 telescope T-adapter suitable for eyepiece with 0.965'' interface ...

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$14.00
$14.00 - $14.00
$14.00
$11.90
$11.90 - $11.90
$11.90
Save $2.10 Save $0.00
SVBONY T2 M42 Camera to Eyepiece Adapter - Astronomy Plus
SVBONY T2 M42 Camera to Eyepiece Adapter - Astronomy Plus
Save up to $3.00 Save $0.00
$18.00 - $20.00
$18.00 - $20.00
$18.00
$15.30 - $17.00
$15.30 - $17.00
$15.30

SVBONY T2 M42 Camera to Eyepiece Adapter

SVBONY SV186 T2 M42 Camera to Eyepiece Adapter Connect your camera to scope eyepiece with this adapter, according to the eyepiece outer diameter. ...

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$18.00 - $20.00
$18.00 - $20.00
$18.00
$15.30 - $17.00
$15.30 - $17.00
$15.30
Save up to $3.00 Save $0.00
SVBONY 0.91" to 1.25" Eyepiece Adapter (W2811E) - Astronomy Plus
SVBONY 0.91" to 1.25" Eyepiece Adapter (W2811E) - Astronomy Plus
Save $1.80 Save $0.00
$12.00
$12.00 - $12.00
$12.00
$10.20
$10.20 - $10.20
$10.20

SVBONY 0.91" to 1.25" Eyepiece Adapter (W2811E)

SVBONY 0.91" to 1.25" Eyepiece Adapter  Fully Metal 0.91" to 1.25" Telescope Eyepiece Adapter 23.2mm to 31.7mm Mount Adapter. Suitable for SVBONY ...

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$12.00
$12.00 - $12.00
$12.00
$10.20
$10.20 - $10.20
$10.20
Save $1.80 Save $0.00
SVBONY 1.25" T Adapter Mount with M42 Threads (F9103A) - Astronomy Plus
SVBONY 1.25" T Adapter Mount with M42 Threads (F9103A) - Astronomy Plus
Save $1.65 Save $0.00
$11.00
$11.00 - $11.00
$11.00
$9.35
$9.35 - $9.35
$9.35

SVBONY 1.25" T Adapter Mount with M42 Threads (F9103A)

SVBONY 1.25" T Adapter Mount with M42 Threads Svbony M42 T adapter can connect with W1077A and W2054A camera adapters (sold separately) to connect...

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$11.00
$11.00 - $11.00
$11.00
$9.35
$9.35 - $9.35
$9.35
Save $1.65 Save $0.00
SVBONY SV112 1.25" Eyepiece Projection Kit (F9183A) - Astronomy Plus
SVBONY SV112 1.25" Eyepiece Projection Kit (F9183A) - Astronomy Plus
Save $13.20 Save $0.00
$88.00
$88.00 - $88.00
$88.00
$74.80
$74.80 - $74.80
$74.80

SVBONY SV112 1.25" Eyepiece Projection Kit (F9183A)

SVBONY SV112 1.25" Eyepiece Projection Kit  Svbony SV112 includes the parts you will need for both "prime focus" and variable "eyepiece projection...

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$88.00
$88.00 - $88.00
$88.00
$74.80
$74.80 - $74.80
$74.80
Save $13.20 Save $0.00
SVBONY SA404 M48-F to M42-M 1.25" adapter (W9165A) - Astronomy Plus
SVBONY SA404 M48-F to M42-M 1.25" adapter (W9165A) - Astronomy Plus
Save $2.40 Save $0.00
$16.00
$16.00 - $16.00
$16.00
$13.60
$13.60 - $13.60
$13.60

SVBONY SA404 M48-F to M42-M 1.25" adapter (W9165A)

SVBONY SA404 M48-F to M42-M 1.25" adapter SA404 is specially designed for the SV41 Mak spotting scope with the M48 Male thread. With a 1.25inch int...

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$16.00
$16.00 - $16.00
$16.00
$13.60
$13.60 - $13.60
$13.60
Save $2.40 Save $0.00
SVBONY DSLR to 1.25" Eyepiece Adapter - Astronomy Plus
SVBONY DSLR to 1.25" Eyepiece Adapter - Astronomy Plus
Save up to $5.25 Save $0.00
$34.00 - $35.00
$34.00 - $35.00
$34.00
$28.90 - $29.75
$28.90 - $29.75
$28.90

SVBONY DSLR to 1.25" Eyepiece Adapter

SVBONY DSLR to 1.25" Eyepiece Adapter  The SVBONY SV149 DSLR camera lens to 1.25-inch eyepiece adapter is designed for digital Nikon AF lens (W9112...

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$34.00 - $35.00
$34.00 - $35.00
$34.00
$28.90 - $29.75
$28.90 - $29.75
$28.90
Save up to $5.25 Save $0.00
SVBONY 1.25" Eyepiece Adapter with Coaxial Lock (F9164A) - Astronomy Plus
SVBONY 1.25" Eyepiece Adapter with Coaxial Lock (F9164A) - Astronomy Plus
Save $4.65 Save $0.00
$31.00
$31.00 - $31.00
$31.00
$26.35
$26.35 - $26.35
$26.35

SVBONY 1.25" Eyepiece Adapter with Coaxial Lock (F9164A)

SVBONY 1.25" Eyepiece Adapter with Coaxial Lock  Convenient hybrid adapter lets you use older style M42 format eyepieces in modern telescopes that...

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$31.00
$31.00 - $31.00
$31.00
$26.35
$26.35 - $26.35
$26.35
Save $4.65 Save $0.00
SVBONY 23.2mm T Ring Lens Mount Set for DSLR (F9126A) - Astronomy Plus
SVBONY 23.2mm T Ring Lens Mount Set for DSLR (F9126A) - Astronomy Plus
Save $2.25 Save $0.00
$15.00
$15.00 - $15.00
$15.00
$12.75
$12.75 - $12.75
$12.75

SVBONY 23.2mm T Ring Lens Mount Set for DSLR (F9126A)

SVBONY 23.2mm T Ring Lens Mount Set for DSLR High Quality Metal Constructionand anodizing aluminium process, durable for long time use Camera adap...

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$15.00
$15.00 - $15.00
$15.00
$12.75
$12.75 - $12.75
$12.75
Save $2.25 Save $0.00
APM SpottingScope Adapter 1.25 " (SScopeAdapter) - Astronomy Plus
APM SpottingScope Adapter 1.25 " (SScopeAdapter) - Astronomy Plus
$60.00 - $60.00
$60.00
$60.00 - $60.00
$60.00

APM SpottingScope Adapter 1.25 " (SScopeAdapter)

APM SpottingScope Adapter 1.25 " This adapter is a really useful addition to your spotting scope. With your 1,25" eyepieces you can achieve differe...

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$60.00 - $60.00
$60.00
$60.00 - $60.00
$60.00
Artesky Ring adapter from T2 to Nikon – Low profile (T2-NIKON-LOW) - Astronomy Plus
Artesky Ring adapter from T2 to Nikon – Low profile (T2-NIKON-LOW) - Astronomy Plus
$38.00 - $38.00
$38.00
$38.00 - $38.00
$38.00

Artesky Ring adapter from T2 to Nikon – Low profile (T2-NIKON-LOW)

Artesky Ring adapter from T2 to Nikon – Low profile T2 ring for Nikon cameras - Low Profile 1mm This product is suitable for all Nikon reflex camer...

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$38.00 - $38.00
$38.00
$38.00 - $38.00
$38.00
Artesky Ring adapter from T2 to Canon – Low profile (T2-CANON-LOW) - Astronomy Plus
Artesky Ring adapter from T2 to Canon – Low profile (T2-CANON-LOW) - Astronomy Plus
$38.00 - $38.00
$38.00
$38.00 - $38.00
$38.00

Artesky Ring adapter from T2 to Canon – Low profile (T2-CANON-LOW)

Artesky Ring adapter from T2 to Canon – Low profile T2 ring for Canon cameras - Low Profile 1mm This product is suitable for all Canon reflex camer...

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$38.00 - $38.00
$38.00
$38.00 - $38.00
$38.00
Artesky Ring adapter from T2 to Nikon (T2-NIKON) - Astronomy Plus
$27.00 - $27.00
$27.00
$27.00 - $27.00
$27.00

Artesky Ring adapter from T2 to Nikon (T2-NIKON)

Artesky Ring adapter from T2 to Nikon High quality T2 ring that lets you adapt all Nikon cameras to the standard T-2 thread In the Box A...

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$27.00 - $27.00
$27.00
$27.00 - $27.00
$27.00
Artesky Ring adapter from T2 to Canon (T2-CANON) - Astronomy Plus
$27.00 - $27.00
$27.00
$27.00 - $27.00
$27.00

Artesky Ring adapter from T2 to Canon (T2-CANON)

Artesky Ring adapter from T2 to Canon High quality T2 ring that lets you adapt all Canon EOS cameras to the standard T-2 thread In the ...

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$27.00 - $27.00
$27.00
$27.00 - $27.00
$27.00
Artesky T2 to 2" Adapter (T2-50-ST) - Astronomy Plus
$44.00 - $44.00
$44.00
$44.00 - $44.00
$44.00

Artesky T2 to 2" Adapter (T2-50-ST)

Artesky T2 to 2" Adapter  Adapter from T2 to 50,8mm with M48 thread for 2" filters. This adapter is used to connect CCD cameras or reflex cameras (...

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$44.00 - $44.00
$44.00
$44.00 - $44.00
$44.00
Artesky 2” to 1.25” Adapter (ADAT-125) - Astronomy Plus
$81.00 - $81.00
$81.00
$81.00 - $81.00
$81.00

Artesky 2” to 1.25” Adapter (ADAT-125)

Artesky 2” to 1.25” Adapter Adapter from 50.8mm (2") to 31.8mm (1.25") supplied with screw It can be used to reduce the aperture of a focuser fro...

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$81.00 - $81.00
$81.00
$81.00 - $81.00
$81.00
PrimaluceLab Adapter ESATTO 3.5" LP for GSO/Orion/TPO Ritchey-Chretien (PL3600367) - Astronomy Plus
$169.00 - $169.00
$169.00
$169.00 - $169.00
$169.00

PrimaluceLab Adapter ESATTO 3.5" LP for GSO/Orion/TPO Ritchey-Chretien (PL3600367)

PrimaluceLab Adapter ESATTO 3.5" LP for GSO/Orion/TPO Ritchey-Chretien If you are searching for the most precise but low profile robotic focu...

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$169.00 - $169.00
$169.00
$169.00 - $169.00
$169.00
PrimaluceLab Adapter ESATTO 3,5” LP for OfficinaStellare Veloce RH300 (PL3600361) - Astronomy Plus
$398.00 - $398.00
$398.00
$398.00 - $398.00
$398.00

PrimaluceLab Adapter ESATTO 3,5” LP for OfficinaStellare Veloce RH300 (PL3600361)

PrimaluceLab Adapter ESATTO 3,5” LP for OfficinaStellare Veloce RH300 The adapter ESATTO 3,5” LP for OfficinaStellare Veloce RH300 allows you...

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$398.00 - $398.00
$398.00
$398.00 - $398.00
$398.00
PrimaluceLab Adapter ESATTO 3,5” LP for large 3.3" SC thread (PL3600362) - Astronomy Plus
$128.00 - $128.00
$128.00
$128.00 - $128.00
$128.00

PrimaluceLab Adapter ESATTO 3,5” LP for large 3.3" SC thread (PL3600362)

PrimaluceLab Adapter ESATTO 3,5” LP for large 3.3" SC thread Adapter ESATTO 3,5” LP for telescopes with large 3.3" SC thread allows you to co...

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$128.00 - $128.00
$128.00
$128.00 - $128.00
$128.00
PrimaluceLab Adapter ESATTO 3,5" LP for SC thread (PL3600366) - Astronomy Plus
$128.00 - $128.00
$128.00
$128.00 - $128.00
$128.00

PrimaluceLab Adapter ESATTO 3,5" LP for SC thread (PL3600366)

PrimaluceLab Adapter ESATTO 3,5" LP SC thread By adding this adapter, you can connect the ESATTO 3,5" LP low profile robotic focuser directly...

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$128.00 - $128.00
$128.00
$128.00 - $128.00
$128.00
PrimaluceLab 3" visual back for ESATTO 3,5” LP (PL8410011) - Astronomy Plus
$128.00 - $128.00
$128.00
$128.00 - $128.00
$128.00

PrimaluceLab 3" visual back for ESATTO 3,5” LP (PL8410011)

PrimaluceLab 3" visual back for ESATTO 3,5” LP If you want to connect a camera with a 3" nosepiece to your ESATTO 3,5” LP, just connect the 3...

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$128.00 - $128.00
$128.00
$128.00 - $128.00
$128.00
PrimaluceLab Adapter ESATTO 4" for Takahashi TOA130 (PL3600380) - Astronomy Plus
$263.00 - $263.00
$263.00
$263.00 - $263.00
$263.00

PrimaluceLab Adapter ESATTO 4" for Takahashi TOA130 (PL3600380)

PrimaluceLab Adapter ESATTO 4" for Takahashi TOA130 Adapter ESATTO 4" for Takahashi TOA130 allows you to install ESATTO 4" instead of the original ...

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$263.00 - $263.00
$263.00
$263.00 - $263.00
$263.00
Meade 1.25" Eyepiece Adapter for SCT and ACF Telescopes (07182) - Astronomy Plus
Save $6.00 Save $0.00
$67.00
$67.00 - $67.00
$67.00
$61.00
$61.00 - $61.00
$61.00

Meade 1.25" Eyepiece Adapter for SCT and ACF Telescopes (07182)

Meade 1.25" Eyepiece Adapter for SCT and ACF Telescopes Rear thread adapter (visual back) for SC/ACF telescopes with standard 2"-24 TPI (threads p...

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$67.00
$67.00 - $67.00
$67.00
$61.00
$61.00 - $61.00
$61.00
Save $6.00 Save $0.00
Baader T-2/T-2 Inverter Ring (T2-26) - Astronomy Plus
Baader T-2/T-2 Inverter Ring (T2-26) - Astronomy Plus
$49.00 - $49.00
$49.00
$49.00 - $49.00
$49.00

Baader T-2/T-2 Inverter Ring (T2-26)

Baader T-2/T-2 Inverter Ring Changes a T-2 female into a T-2 male thread Optical path length is zero. Blackened internal threading for stray light...

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$49.00 - $49.00
$49.00
$49.00 - $49.00
$49.00
ZWO Adapter - Nikon Lens to 2" Filter Wheel (EFW2-Nikon) - Astronomy Plus
ZWO Adapter - Nikon Lens to 2" Filter Wheel (EFW2-Nikon) - Astronomy Plus
$93.00 - $93.00
$93.00
$93.00 - $93.00
$93.00

ZWO Adapter - Nikon Lens to 2" Filter Wheel (EFW2-Nikon)

ZWO Adapter - Nikon Lens to 2" Filter Wheel This adapter from ZWO allows for Nikon lenses to be used with 2-inch filter wheels (EFW). The interface...

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$93.00 - $93.00
$93.00
$93.00 - $93.00
$93.00
Baader M68 to T-2 Conversion Ring (M68-T2) - Astronomy Plus
Baader M68 to T-2 Conversion Ring (M68-T2) - Astronomy Plus
$100.00 - $100.00
$100.00
$100.00 - $100.00
$100.00

Baader M68 to T-2 Conversion Ring (M68-T2)

Baader M68 to T-2 Conversion Ring  This conversion ring is created by Baader for quickly switching an M68 male thread into a T-2 male thread. This...

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$100.00 - $100.00
$100.00
$100.00 - $100.00
$100.00
Player One M54M-M48M 2MM Adapter (M54M-M48M-2) - Astronomy Plus
Save $6.00 Save $0.00
$27.00
$27.00 - $27.00
$27.00
$21.00
$21.00 - $21.00
$21.00

Player One M54M-M48M 2MM Adapter (M54M-M48M-2)

Player One M54M-M48M 2MM Adapter M54M-M48M 2mm adapterMaterial：Aluminum 6061-T6Adapter: M54*0.75 male threads and M48*0.75 female threadsExtention ...

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$27.00
$27.00 - $27.00
$27.00
$21.00
$21.00 - $21.00
$21.00
Save $6.00 Save $0.00
Player One M43M - M42M Adapter (M54M-M42M-2) - Astronomy Plus
Save $6.00 Save $0.00
$27.00
$27.00 - $27.00
$27.00
$21.00
$21.00 - $21.00
$21.00

Player One M43M - M42M Adapter (M54M-M42M-2)

Player One M43M - M42M AdapterDesign for Filter Drawer MAX to connect Ares, Uranus cooled cameras and planetary cameras.Material：Aluminum 6061-T6Ad...

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$27.00
$27.00 - $27.00
$27.00
$21.00
$21.00 - $21.00
$21.00
Save $6.00 Save $0.00
Rowan Astronomy AZ100 Altitude Axis Spacer (AAS) - Astronomy Plus
$110.00 - $110.00
$110.00
$110.00 - $110.00
$110.00

Rowan Astronomy AZ100 Altitude Axis Spacer (AAS)

Rowan Astronomy AZ100 Altitude Axis Spacer  All CNC machined aluminium and black anodised.Supplied with stainless steel hardware. The Altitude Axis...

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$110.00 - $110.00
$110.00
$110.00 - $110.00
$110.00
Baader Hyperion DT-Ring SP54/M49 (2958049) - Astronomy Plus
$28.00 - $28.00
$28.00
$28.00 - $28.00
$28.00

Baader Hyperion DT-Ring SP54/M49 (2958049)

Baader Hyperion DT-Ring SP54/M49 for DT Adapter II&III and Hyperion Eyepieces Adapts camera lenses onto Hyperion and Morpheus Eyepieces, as we...

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$28.00 - $28.00
$28.00
$28.00 - $28.00
$28.00
Baader Hyperion Finetuning-Ring M48, 28 mm (2958228) - Astronomy Plus
$32.00 - $32.00
$32.00
$32.00 - $32.00
$32.00

Baader Hyperion Finetuning-Ring M48, 28 mm (2958228)

Baader Hyperion Finetuning-Ring M48, 28 mm With the addition of Baader's new Finetuning Rings, each Hyperion eyepiece can now function as four eyep...

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$32.00 - $32.00
$32.00
$32.00 - $32.00
$32.00
Baader Hyperion Zoom M43 / SP54 Adapter (2958086) - Astronomy Plus
Baader Hyperion Zoom M43 / SP54 Adapter (2958086) - Astronomy Plus
$55.00 - $55.00
$55.00
$55.00 - $55.00
$55.00

Baader Hyperion Zoom M43 / SP54 Adapter (2958086)

Baader Hyperion Zoom M43 / SP54 Adapter  Hyperion Zoom Adapter for M43 internal thread to SP54 external thread This adapter allows the connection...

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$55.00 - $55.00
$55.00
$55.00 - $55.00
$55.00
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