| M42*1 4mm length extension tube |
| M42*1 5mm length extension tube |
| M42*1 6mm length extension tube |
| M42*1 7mm length extension tube |
| M42*1 8mm length extension tube |
| M42*1 9mm length extension tube |
| M42*1 10mm length extension tube |
| M42*1 15mm length extension tube |
| M42*1 20mm length extension tube |
| M42*1 25mm length extension tube |
| M42*1 30mm length extension tube |