Extension tubes < Adaptors < Telescope accessories | ASTROSHOP

EN / $

✓ Europe's largest astronomy equipment retailer

✓ 7,500+ items available from stock

✓ Personal advice & service

Categories

Telescope accessories (1209)

Extension tubes (105)

Extension & reduction adaptors (191)

Other Adaptors (35)

Show main categories

Availability

short-term (105)

in stock (67)

long-term (10)

Select multiple items

Manufacturer

Artesky (12)

ASToptics (9)

Baader (27)

Celestron (1)

Gerd Neumann jr. (2)

GSO (1)

PrimaLuceLab (1)

TeleVue (7)

TS Optics (41)

William Optics (1)

ZWO (3)

Connection (to the telescope)

1,25" (2)

2" (10)

2,4" (3)

C-Mount (1)

M117 (2)

M43 (1)

M48 (13)

M54 (13)

M68 (8)

M90 (1)

M92 (1)

S70 (1)

T2 (28)

Optical length

0,1 - 2,0 (2)

0,3 (4)

0,5 (4)

0,6 (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 (3)

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 (6)

6 (1)

7 (2)

8 (4)

9 (1)

35 (1)

40 (4)

47 (1)

50 (3)

60 (1)

67 (1)

7,5 (5)

7,5 - 30 (1)

Connector (other end)

2" (1)

48mm (2)

75mm (2)

C-Mount (1)

M48 (12)

M54 (9)

M55 (2)

M63 (1)

M68 (4)

M75 (1)

T2 (15)

Female (1)

Price

< 60 $ (88)

60 - 110 $ (13)

110 - 170 $ (4)

TS Optics Extension tube M48 17-23mm

TS Optics

Extension tube M48 17-23mm

$ 42.90

ready for shipping in 3-7 days

TS Optics Extension tube M54 15mm

TS Optics

Extension tube M54 15mm

$ 45.90

ready for shipping in 3-7 days

Baader Extension tube T2 40mm

Baader

Extension tube T2 40mm

$ 30.90

ready for shipping in 1-2 weeks

Baader Extension tube M54 40mm

Baader

Extension tube M54 40mm

$ 43.90

ready for shipping in 1-2 weeks

TS Optics T2 extension ring, optical path 3mm

TS Optics

T2 extension ring, optical path 3mm

$ 23.90

ready for shipping in 3-7 days

Baader Extension tube M54 7.5mm

Baader

Extension tube M54 7.5mm

$ 36.90

ready for shipping in 1-2 weeks

Baader Extension tube M54 5mm

Baader

Extension tube M54 5mm

$ 35.90

ready for shipping in 1-2 weeks

Baader Extension tube VariLock 46 lockable T-2 29-46mm extender, with lock spanner

Baader

Extension tube VariLock 46 lockable T-2 29-46mm extender, with lock spanner

$ 82.00

ready for shipping in 1-2 weeks

TS Optics Extension tube M68 40mm

TS Optics

Extension tube M68 40mm

$ 65.00

ready for shipping in 3-7 days

TS Optics Extension tube 7 mm M54

TS Optics

Extension tube 7 mm M54

$ 42.90

ready for shipping in 1-2 weeks

Celestron Extension tube T2 Set

Celestron

Extension tube T2 Set

$ 78.00

ready for shipping in 1-2 weeks

Baader Extension tube M54 15mm

Baader

Extension tube M54 15mm

$ 39.90

ready for shipping in 1-2 weeks

Baader 2" extension for 2" ClickLock

Baader

2" extension for 2" ClickLock

$ 101.00

ready for shipping in 1-2 weeks

Baader Extension tube M54 10mm

Baader

Extension tube M54 10mm

$ 44.90

ready for shipping in 1-2 weeks

Baader Extension tube Fine-Adjustment Rings T2 0.5mm

Baader

Extension tube Fine-Adjustment Rings T2 0.5mm

$ 15.90

ready for shipping in 1-2 weeks

TS Optics Extension tube M68 15mm

TS Optics

Extension tube M68 15mm

$ 56.00

ready for shipping in 3-7 days

TS Optics Extension tube M48 / M63 variabel 20.5 - 31mm

TS Optics

Extension tube M48 / M63 variabel 20.5 - 31mm

$ 63.00

ready for shipping in 3-7 days

TS Optics Extension tube M54 8mm

TS Optics

Extension tube M54 8mm

$ 43.90

ready for shipping in 3-7 days

TS Optics Extension Tubes for C-mount lenses, six-piece

TS Optics

Extension Tubes for C-mount lenses, six-piece

$ 53.00

ready for shipping in 3-7 days

TS Optics Extension tube 35mm 2"

TS Optics

Extension tube 35mm 2"

$ 36.90

ready for shipping in 3-7 days

TS Optics Extension tube T2 10mm

TS Optics

Extension tube T2 10mm

$ 23.90

ready for shipping in 3-7 days

TS Optics T2 spacer and extension tube, optical path 20.5 mm to 30mm

TS Optics

T2 spacer and extension tube, optical path 20.5 mm to 30mm

$ 37.90

ready for shipping in 3-7 days

William Optics 4" extension adapter for Flat GT

William Optics

4" extension adapter for Flat GT

$ 111.00

ready for shipping in 3-5 weeks

Baader Extension tube M43 7,5mm

Baader

Extension tube M43 7,5mm

$ 22.90

ready for shipping in 1-2 weeks

Baader Extension tube UFC S70 VariLock 15-20mm extender

Baader

Extension tube UFC S70 VariLock 15-20mm extender

$ 117.00

ready for shipping in 1-2 weeks

TS Optics 2“ extension tube, 80mm optical path

TS Optics

2“ extension tube, 80mm optical path

$ 40.90

ready for shipping in 3-7 days

TS Optics Extension tube M54 5mm

TS Optics

Extension tube M54 5mm

$ 41.90

ready for shipping in 3-7 days

TS Optics Extension tube M54 1mm

TS Optics

Extension tube M54 1mm

$ 18.90

ready for shipping in 1-2 weeks

Baader Extension tube VariLock 29 lockable T-2 20-29mm extender, with lock spanner

Baader

Extension tube VariLock 29 lockable T-2 20-29mm extender, with lock spanner

$ 78.00

ready for shipping in 1-2 weeks

TS Optics 1.25" extension tube, 25mm optical path

TS Optics

1.25" extension tube, 25mm optical path

$ 27.90

ready for shipping in 3-7 days

TeleVue 3.5" Extension Tube

TeleVue

3.5" Extension Tube

RRP: $ 134.00

Our price:

ready for shipping in 6-10 weeks

Baader Extension tube M48 15mm

Baader

Extension tube M48 15mm

$ 32.90

ready for shipping in 1-2 weeks

TS Optics 2“ extension tube, 50mm optical path

TS Optics

2“ extension tube, 50mm optical path

$ 33.90

ready for shipping in 3-7 days

ZWO Extension tube 16.5mm M48

ZWO

Extension tube 16.5mm M48

$ 44.90

ready for shipping in 3-7 days

Artesky Extension tube Fine Tuning Ring Set T2

Artesky

Extension tube Fine Tuning Ring Set T2

$ 27.90

ready for shipping in 3-5 weeks

Baader Extension tube M54 30mm

Baader

Extension tube M54 30mm

$ 41.90

ready for shipping in 1-2 weeks

Compare 0/4

Clear Compare now Compare