What image quality should I set my camera at? I have it set to LF+RAW right now. Does that mean Large Fine + RAW? Is that the best/highest quality setting? It's an Olympus OM-D E-M10 Mark 2. The manual doesn't say what each setting is. It also mentions compression ratio. What is that?
http://www.olympusamerica.com/files/oima_cckb/E-M10_Markk_II_En.PDFPage 60