PrimaLuceLab 5mm/7mm/9mm M48 Extensions (PL3304805/PL3304807/PL3304809)
PrimaLuceLab 5mm/7mm/9mm M48 Extensions (PL3304805/PL3304807/PL3304809)
Extension Thickness
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Product Description
M48 extension rings have different uses:
- can be screwed to optical accessories (such as field flatteners or focal reducers) to bring the camera sensor at the right distance from the lens (to optimize performance)
- can be used to separate the mechanical accessories that, when used together, can touch and then not work properly (eg an off-axis guider could touch a filter wheel and it could prevent its rotation searching for a guide star)
M48 extensions can be screwed together. In order to set the perfect thickness you need, you can also add the M48 1mm and 0.5mm spacers in between (as seen above).
Specifications
M48 Extension Details
- Material: Aluminum
- Anodizing: Black
- M48 male and female thread on sides
- External knurling to improve grip
Thanks to the availability of different extensions and spacers, you can purchase different combinations and adjust the thickness of your customized extension, in 0.5mm steps!
| Thickness (mm) | Combination | Codes |
| 5 | 5mm M48 extension | PL3304805 |
| 5.5 | 5mm M48 + M48 spacer 0.5mm | PL3304805 + PL3304800 |
| 6 | 5mm M48 extension+ M48 spacer 1mm | PL3304805 + PL3304801 |
| 6.5 | 5mm M48 extension+M48 spacer 1mm+ M48 spacer 0.5mm | PL3304805 + PL3304801 + PL3304800 |
| 7 | 7mm M48 extension | PL3304807 |
| 7.5 | 7mm M48 extension + M48 spacer 0.5mm | PL3304807 + PL3304800 |
| 8 | 7mm M48 extension 7mm +M48 spacer 1mm | PL3304807 + PL3304801 |
| 8.5 | 7mm M48 extension +M48 spacer 1mm+ M48 spacer 0.5mm | PL3304807 + PL3304801 + PL3304800 |
| 9 | 9mm M48 extension | PL3304809 |
| 9.5 | 9mm M48 extension + M48 spacer 0.5mm | PL3304809 + PL3304800 |
| 10 | 5mm M48 extension+5mm M48 extension | PL3304805 + PL3304805 |
| 10.5 | 5mm M48 extension+5mm M48 extension+ M48 spacer 0.5mm | PL3304805 + PL3304805 + PL3304800 |
| 11 | 5mm M48 extension+5mm M48 extension+M48 spacer 1mm | PL3304805 + PL3304805 + PL3304801 |
| 11.5 | 5mm M48 extension+5mm M48 extension+M48 spacer 1mm+ M48 spacer 0.5mm | PL3304805 + PL3304805 + PL3304801 + PL3304800 |
| 12 | 5mm M48 extension+7mm M48 extension | PL3304805 + PL3304807 |
| 12.5 | 5mm M48 extension+7mm M48 extension+ M48 spacer 0.5mm | PL3304805 + PL3304807 + PL3304800 |
| 13 | 5mm M48 extension+7mm M48 extension+M48 spacer 1mm | PL3304805 + PL3304807 + PL3304801 |
| 13.5 | 5mm M48 extension+7mm M48 extension+M48 spacer 1mm+ M48 spacer 0.5mm | PL3304805 + PL3304807 + PL3304801 + PL3304800 |
| 14 | 7mm M48 extension+7mm M48 extension | PL3304807 + PL3304807 |
| 14.5 | 7mm M48 extension+7mm M48 extension+ M48 spacer 0.5mm | PL3304805 + PL3304807 + PL3304800 |
| 15 | 7mm M48 extension+7mm M48 extension+M48 spacer 1mm | PL3304807 + PL3304807 + PL3304801 |
| 15.5 | 7mm M48 extension+7mm M48 extension+M48 spacer 1mm+ M48 spacer 0.5mm | PL3304807 + PL3304807 + PL3304801 + PL3304800 |
| 16 | 7mm M48 extension+9mm M48 extension | PL3304807 + PL3304809 |
| 16.5 | 7mm M48 extension+9mm M48 extension+ M48 spacer 0.5mm | PL3304807 + PL3304809 + PL3304800 |
| 17 | 7mm M48 extension+9mm M48 extension+M48 spacer 1mm | PL3304807 + PL3304809 + PL3304801 |
| 17.5 | 7mm M48 extension+9mm M48 extension+M48 spacer 1mm+ M48 spacer 0.5mm | PL3304807 + PL3304809 + PL3304801 + PL3304800 |
| 18 | 9mm M48 extension+9mm M48 extension | PL3304807 + PL3304809 |
| 18.5 | 9mm M48 extension+9mm M48 extension+ M48 spacer 0.5mm | PL3304807 + PL3304809 + PL3304800 |
| 19 | 9mm M48 extension+9mm M48 extension+M48 spacer 1mm | PL3304807 + PL3304809 + PL3304801 |
| 19.5 | 9mm M48 extension+9mm M48 extension+M48 spacer 1mm+ M48 spacer 0.5mm | PL3304809 + PL3304809 + PL3304801 + PL3304800 |