Medium format lenses tend to be pricier than their full frame or APS-C counterparts; after all, a bigger sensor requires bigger glass to match it. A sub-$1,000 medium format lens is a rarity; even rarer is a sub-$1,000 zoom lens. Fujifilm's GF 35-70mm f/4.5-5.6 WR fits the bill, though, and this great video review takes a look at the lens and how it holds up on the GFX 50S II.