Bresser
Extension tube 25mm 2.5" Hexafoc
$ 20.90
ready for shipping in 1-2
weeks
TS Optics
Extension tube M68 40mm
$ 68.00
ready for shipping in 3-7
days
TS Optics
Extension tube M68 15mm
$ 59.00
ready for shipping in 3-7
days
TS Optics
Extension tube M68 extender, 8mm overall optical path
$ 55.00
ready for shipping in 3-7
days
TS Optics
Extension tube M68 extender, 5mm total optical path
RRP:
$ 58.00
Our price:
$ 54.00
ready for shipping in 3-7
days
Bresser
Extension tube 37.5mm 2.5" Hexafoc
$ 23.90
ready for shipping in 1-2
weeks
ASToptics
Extension tube M68 fine tuning ring - 1mm (aluminium)
$ 16.90
ready for shipping in 1-2
weeks
ASToptics
Extension tube M68 fine tuning ring - 0.5mm (aluminium)
$ 13.90
ready for shipping in 1-2
weeks
Starlight Instruments
Extension adding 2.25 inches to overall length
RRP:
$ 432.00
Our price:
$ 316.00
ready for shipping in 3-6
months
Baader
Extension tube M68 VariLock 15-20 mm
$ 170.00
ready for shipping in 1-2
weeks
ASToptics
Extension tube M68 fine tuning ring - 0.3mm (aluminium)
$ 17.90
ready for shipping in 1-2
weeks