The Fujifilm EF-42 is a lightweight and portable shoe-mount flash designed for Fujifilm cameras. It features a guide number of 42 metres at ISO 100 with a zoom range from 24mm to 105mm (extendable to 20mm with the included wide-angle panel). The flash head tilts up to 90 degrees and rotates 180 degrees left and 120 degrees right, offering flexible bounce flash capabilities. It operates on 4 AA batteries and delivers a recycling time of approximately 3.5 seconds between flashes, with manual power adjustment from full power down to 1/64. This secondhand unit is an excellent choice for photographers looking to expand their flash capabilities on a budget.