For advice on building / using / aligning / etc optical setups.
Types of posts that might be useful for this category:
Borrowing stuff: “Does anyone have a 950 nm beam splitter for a cage mount system?”
Advice: “I’d like to build a camera imaging system but can’t figure out the white light illumination. Does anyone have advice?”
Problems: “I’ve been trying to collimate a beam for hours now, I just can’t get it to work. Would anyone be able to help me?”