![]() ![]() However, some telephoto lenses and cameras may need a setting other than a full f-stop. Generally, an appropriate setting is 1 to 2 f-stops from the maximum aperture. Therefore, after considering all the unavoidable variables, you need to find the most appropriate aperture for a given situation. Likewise, you cannot use the same f-stop for varying focal lengths, whether for full-frame or cropped sensors, i.e., DX, CX, APS-C, or Micro Four Thirds. Hence, a specific f-stop won’t produce similar images for all lenses and cameras, and certainly not in different circumstances. These specifications enable telephoto lenses to have distinct features even when using the same settings, such as a preferred f-stop. Like cameras, telephoto lenses have different characteristics, such as: Also, there are short, medium, and super categories for both zoom and prime telephoto lenses. Telephoto lenses have a vast focal length ranging from under 100 mm (3.93 inches) to 600 mm (23.6 inches), but the range can be even broader than that sometimes. 1 to 2 F-Stops Higher Than the Lowest Setting Highest F-Stop for the Best Depth of Field in Proper Light 1. Lowest F-Stop for Blurred Background or Low Light ![]() Relevant Circumstances for ~1 F-Stop Larger Than the Minimum Aperture.Sigma 150 – 600mm (5.9 – 23.6 Inches) DG OS HSM Telephoto Lens.Around 1 Full F-Stop Short of the Highest Setting Relevant Circumstances for 1 to 2 F-Stops Smaller Than the Max Aperture.Nikon AF-S FX NIKKOR 200 – 500mm (7.9 – 19.7 Inches) Telephoto Lens.
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