Baader
Extension tube M48 40mm 2"
$ 37.90
ready for shipping in 1-2
weeks
ASToptics
Extension M48 - 15mm
$ 23.90
ready for shipping in 3-6
months
TS Optics
Extension tube Fine-tuning ring for M48 0.3mm
$ 20.90
ready for shipping in 3-7
days
TS Optics
Extension tube Fine Tuning Ring for M48 thickness 0.5mm
$ 20.90
ready for shipping in 3-7
days
TS Optics
M48x0.75 to M42x0.75 adapter
$ 35.90
ready for shipping in 3-7
days