Extension tubes < Adaptors < Telescope accessories < Astronomy | OPTICS-PRO

EN / $

✓ Europe's largest sport optics specialist

✓ 7,500+ items available from stock

✓ Personal advice & service

Categories

Astronomy (4123)

Telescope accessories (1816)

Extension tubes (105)

Extension & reduction adaptors (195)

Other Adaptors (36)

Show main categories

Availability

short-term (105)

in stock (67)

long-term (9)

Select multiple items

Manufacturer

Artesky (12)

ASToptics (9)

Baader (30)

Celestron (1)

Gerd Neumann jr. (2)

GSO (1)

PrimaLuceLab (1)

TeleVue (8)

TS Optics (38)

ZWO (3)

Connection (to the telescope)

1,25" (2)

2" (10)

2,4" (3)

C-Mount (1)

M117 (2)

M43 (1)

M48 (15)

M54 (13)

M68 (8)

M90 (1)

S70 (1)

T2 (28)

Optical length

0,1 - 2,0 (1)

0,3 (4)

0,5 (4)

0,6 (1)

0,6-1,4 (1)

0,65 (1)

1 (3)

1,0 (3)

1,05 (1)

1,5 (3)

10 (3)

11 (1)

15 (6)

15 - 20 (2)

16,5 (1)

17 - 23 (1)

20 (2)

20,5 - 30 (1)

20,5 - 31 (1)

21 (1)

23,5 - 27 (1)

25 (2)

26 (1)

3 (3)

30 (3)

4 (1)

5 (7)

6 (1)

7 (2)

8 (4)

9 (1)

40 (4)

47 (1)

50 (3)

60 (1)

7,5 (5)

7,5 - 30 (1)

Connector (other end)

2" (1)

48mm (2)

75mm (2)

C-Mount (1)

M48 (14)

M54 (9)

M55 (2)

M63 (1)

M68 (4)

M75 (1)

T2 (16)

Female (1)

Price

< 60 $ (91)

60 - 110 $ (12)

110 - 170 $ (2)

Baader Extension tube M54 40mm

Baader

Extension tube M54 40mm

$ 44.90

ready for shipping in 1-2 weeks

Baader Extension tube M48 15mm

Baader

Extension tube M48 15mm

$ 32.90

ready for shipping in 1-2 weeks

GSO Extension tube 50mm extender for RC telescopes

GSO

Extension tube 50mm extender for RC telescopes

$ 56.00

ready for shipping in 3-7 days

Baader Extension tube M54 7.5mm

Baader

Extension tube M54 7.5mm

$ 37.90

ready for shipping in 1-2 weeks

Baader Extension tube DT-4 Verlaengerungshuelse 31,8mm (1 ¼ ")

Baader

Extension tube DT-4 Verlaengerungshuelse 31,8mm (1 ¼ ")

$ 21.90

ready for shipping in 1-2 weeks

Baader Extension tube M54 5mm

Baader

Extension tube M54 5mm

$ 36.90

ready for shipping in 1-2 weeks

Baader Extension tube Fine Tuning Ring for M48 thickness 0.5mm

Baader

Extension tube Fine Tuning Ring for M48 thickness 0.5mm

$ 15.90

ready for shipping in 1-2 weeks

Baader Extension tube M54 30mm

Baader

Extension tube M54 30mm

$ 42.90

ready for shipping in 1-2 weeks

Artesky Extension tube T2 5mm

Artesky

Extension tube T2 5mm

$ 22.90

ready for shipping in 3-5 weeks

Artesky Extension tube T2 7.5mm

Artesky

Extension tube T2 7.5mm

$ 22.90

ready for shipping in 3-5 weeks

Artesky Extension tube T2 10mm

Artesky

Extension tube T2 10mm

$ 22.90

ready for shipping in 3-5 weeks

Baader Extension tube M68 VariLock 15-20 mm

Baader

Extension tube M68 VariLock 15-20 mm

$ 165.00

ready for shipping in 1-2 weeks

ASToptics Extension tube M68 fine tuning ring - 0.3mm (aluminium)

ASToptics

Extension tube M68 fine tuning ring - 0.3mm (aluminium)

$ 16.90

ready for shipping in 1-2 weeks

TS Optics Extension tube 7 mm M54

TS Optics

Extension tube 7 mm M54

$ 43.90

ready for shipping in 1-2 weeks

Artesky Extension tube T2 15mm

Artesky

Extension tube T2 15mm

$ 20.90

ready for shipping in 3-5 weeks

ASToptics Extension tube M68 fine tuning ring - 1mm (aluminium)

ASToptics

Extension tube M68 fine tuning ring - 1mm (aluminium)

$ 15.90

ready for shipping in 1-2 weeks

Artesky Extension tube Fine Tuning Ring Set M54

Artesky

Extension tube Fine Tuning Ring Set M54

$ 34.90

ready for shipping in 3-5 weeks

ASToptics Extension tube T2 fine tuning ring - 1mm (aluminium)

ASToptics

Extension tube T2 fine tuning ring - 1mm (aluminium)

$ 11.90

ready for shipping in 1-2 weeks

ASToptics Extension tube M48 (2") fine tuning ring - 0.3mm (aluminium)

ASToptics

Extension tube M48 (2") fine tuning ring - 0.3mm (aluminium)

$ 11.90

ready for shipping in 1-2 weeks

ASToptics Extension tube T2 fine tuning ring - 2mm (aluminium)

ASToptics

Extension tube T2 fine tuning ring - 2mm (aluminium)

$ 11.90

ready for shipping in 1-2 weeks

ASToptics Extension tube M48 (2") Fine tuning ring - 0.5mm (aluminium)

ASToptics

Extension tube M48 (2") Fine tuning ring - 0.5mm (aluminium)

$ 11.90

ready for shipping in 1-2 weeks

ASToptics Extension tube T2 fine-tuning ring - 0.5mm (aluminium)

ASToptics

Extension tube T2 fine-tuning ring - 0.5mm (aluminium)

$ 11.90

ready for shipping in 1-2 weeks

ASToptics Extension tube M68 fine tuning ring - 0.5mm (aluminium)

ASToptics

Extension tube M68 fine tuning ring - 0.5mm (aluminium)

$ 13.90

ready for shipping in 1-2 weeks

TS Optics Extension tube M54 8mm

TS Optics

Extension tube M54 8mm

$ 44.90

ready for shipping in 3-7 days

TS Optics Extension tube Fine Tuning Ring for T2-thread - thickness 0.5 mm

TS Optics

Extension tube Fine Tuning Ring for T2-thread - thickness 0.5 mm

$ 16.90

ready for shipping in 3-7 days

TeleVue Extension tube 2" eyepiece extender

TeleVue

Extension tube 2" eyepiece extender

$ 57.00

ready for shipping in 6-10 weeks

TS Optics Extension tube M54 1.5mm

TS Optics

Extension tube M54 1.5mm

$ 19.90

ready for shipping in 1-2 weeks

TS Optics Extension tube M54 1mm

TS Optics

Extension tube M54 1mm

$ 19.90

ready for shipping in 1-2 weeks

TS Optics T2 extension tube, 5mm optical path

TS Optics

T2 extension tube, 5mm optical path

$ 23.90

ready for shipping in 3-7 days

TS Optics Extension tube T2 26mm extender

TS Optics

Extension tube T2 26mm extender

$ 24.90

ready for shipping in 3-7 days

TS Optics Extension tube M68 extender, 5mm total optical path

TS Optics

Extension tube M68 extender, 5mm total optical path

RRP: $ 56.00

Our price:

ready for shipping in 3-7 days

Baader Extension tube Fine-tuning ring for M48 0.3mm

Baader

Extension tube Fine-tuning ring for M48 0.3mm

$ 15.90

ready for shipping in 1-2 weeks

TS Optics Extension tube, 2", 3mm

TS Optics

Extension tube, 2", 3mm

$ 33.90

ready for shipping in 3-7 days

Baader Extension tube M48 5mm

Baader

Extension tube M48 5mm

$ 29.90

ready for shipping in 3-7 days

TS Optics 2" extension tube with filter thread on both ends, 20mm optical path

TS Optics

2" extension tube with filter thread on both ends, 20mm optical path

$ 33.90

ready for shipping in 3-7 days

Baader Extension tube M48 7.5mm

Baader

Extension tube M48 7.5mm

$ 29.90

ready for shipping in 1-2 weeks

Compare 0/4

Clear Compare now Compare