I was genuinely surprised how much I used the Tamron 50-400 for landscape on my trip to Yellowstone. The scale of the scenery lends itself to a more focused view, and the 75-100mm equivalent on the Tamron is ideal. Yes I would have, a few time, liked a bit wider view (if the rumored Tamron 20-400 is any good I may be tempted), but for the most part the 50-400 did an excellent job framing the vast landscape and the smaller landscape details. These shots of the lower terrace of Mammoth Hot Springs were all taken with the Tamron at various focal lengths for framing, and come as close to capturing the wonder of the place as, at least I, have ever managed, and certainly better than any single wide angle shot. Sony a6700 with the Tamron 50-400 Di iii VC VXD zoom at various focal length equivalents for framing. Program mode. Processed in Photomator.