# LabelMark F-theta lenses: identify by focal length; swap only before collection

- Source-Date (SAST): 2024-04-20 08:18
- Dest: public
- Review-after: 2027-02-28
- Status: current
- Source: company email (Archives/Internal Affairs), 2024-04-20

## Facts

- Fibre F-theta lenses (1064 nm, M85x1): **LLM-50** 50×50 mm / 63 mm; **LLM-70** 70×70 / 100 mm; **LLM-90** 90×90 / 130 mm; **LLM-110** 110×110 / 163 mm; **LLM-200** 200×200 / 290 mm (listed default on the machine); **LLM-220** 220×220 / 330 mm; **LLM-300** 300×300 / 420 mm.
- Read the **f** (focal length) marked on the lens to identify the SKU (example: f=130 mm is LLM-90).
- If the order is not for the default lens, swap **before collection**, no extra charge, subject to stock. Do **not** swap after collection unless the machine shipped with the wrong lens.