Panasonic Lumix G X Vario 14-42mm f3.5-5.6 ASPH Power OIS filter holder Old-school means that this lens

Old-school means that this lens still has a real aperture control ring

The adapter is probably an aftermarket part- it has neither Fujifilm nor aftermarket branding- but it works

Because this is a D-type lens

which you skew sideways to create a lever arm that you use for rewinding

Panasonic Lumix G X Vario 14-42mm f3.5-5.6 ASPH Power OIS filter holder Old-school means that this lensPanasonic Lumix G X Vario 14 42mm f3. 5 5. 6 ASPH Power OIS is a very compact power zoom lens for Micro Four Thirds cameras. Not much bigger than that system's smallest primes, this little lens still packs a pretty decent range and an optical image stabilizer. In excellent condition, with clean glass and good function.