It's an exceptional camera that can also go to very high ISOs - it is a bit more video oriented than the other a7 series cameras but that does not preclude it from being what is probably the best image quality 12mp sensor camera ever made. There's nothing wrong with it as long as 12 megapixels aren't limiting for you. As mentioned above, the a7 (not s and not r) at 24 megapixels (not 20) might be better suited and those are on sale right now for a very low price. The a7 II is better but it does have the same sensor as the original a7. An R is not needed unless you need that level of resolution but they do have some other features that are great for landscape like electronic first curtain (fully electronic shutter capability on the III) etc. It basically comes down to three things, cost, resolution, and feature set on which of the now 7 models of a7 you decide to go with.