7/30/2023 0 Comments F stop lens![]() ![]() Wide angle lenses are most commonly used by photographers who shoot landscape photography. Sharpness Test on the Nikon 10-24mm Lens Shot at 11mm Notice that f/13 is the sweet spot on this lens and f/16 is the highest aperture that still achieves reasonable sharpness. The sweet spot on lenses is totally dependent on the specific lens. While I, of course, tested every single aperture on these lenses, I only show a few of the most pertinent results here.Īlso remember that I am not saying that these apertures are the sharpest for every lens or even every similar lens. ![]() I have taken that into account by shooting at the most common focal lengths that I typically shoot these lenses at. OBVIOUSLY, the focal length of a zoom will change the sharpness. I shot the zoom lenses at the most common focal length that I usually shoot the lenses at and shot at a distance that is common for shooting with the particular lens. The specific lenses that I tested were the Nikon 10-24mm lens, the Nikon 50mm f/1.8 lens, and the Nikon 70-200mm f/2.8 lens. I repeated this test multiple times for three common lenses: a wide angle, a 50mm prime, and a portrait zoom lens. I find that shooting a newspaper is a great way to test the sharpness because you can zoom in to 100% view of the words and easily see which picture is sharpest. I used mirror lock-up (described in the 13 myths article), and I fired the camera wirelessly so that my pressing the shutter button would not vibrate the camera. Then, I taped a newspaper against the wall across the room and took various pictures of the newspaper. The way that I did the testing for this article is to put the camera on a tripod and lock it down so there is absolutely no variable that could be impacting the test. Other photographers say that the sweet spot is two stops from wide open, but that is also not true according to the tests I ran. Many photographers say that f/8 or f/11 is usually the sharpest lens, but I have not found that to be true. My purpose in conducting this test is to show that there is no single sweet spot where each lens will be sharpest. As you can see from the samples and explanation below, the answer to the question of the sweet spot aperture for different lenses depends on what lens is used. This article is a section in my 12 Photography Myths Article, where I explain what the sharpest aperture is on various lenses. ![]()
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