Soan 18-55 lens on a DX camera will give the same field of view as 27-82.5 on a full frame camera (although in real use these are quite approximate). Maybe you made a typo, but your 70-300 is a FX lens, not DX. That means it's perfectly usable on the D600. It dovetails nicely with the 24-85. Those two lenses give you everything from wide Ideallens to get you started, this compact standard zoom lens is perfect for a wide range of photography from landscapes to portraits. 18-55mm. Max Aperture. f/4 - 5.6. Minimum Aperture. f/22 - 32. Minimum Focusing Distance (m) 0.25. Maximum Magnification. 0.25 (at 55mm) Number of Lens Groups. 10. Youwill see 2 numbers with a square in the middle. Multiply the first number (lens width) times 2 and add the second number (bridge width). For example: 55 18. In this case, 55 is the lens width and 18 is the bridge The18-55 camera lens refers to a zoom lens that has a focal length range of 18mm to 55mm. This type of lens is commonly used as a kit lens for entry-level DSLR Whilezooming, the lens maintains its maximum aperture of f3.5 from 18mm to 24mm. At 35mm, it shifts to f4.5 and turns to f5.6 at about 45mm. Flare was fairly well controlled, but noticeable Hereare the reasons why: 1) The STM versions are sharper than the Micro Motor versions 2) STM AF is faster and quieter. 3) The front element does not rotate on the 18-55mm STM 4) The STM version has a proper manual focus ring. 5) The STM version has "Full Time Manual Focus" available 6) The lens hood for the STM version is a proper Heres why you might want to get prime lenses instead. Zoom Lens vs. Prime Lens . If you've just bought a new DSLR, the kit lens that comes with your camera is almost certainly a zoom lens; most come with an 18-55mm lens, which means that lens covers every focal length between 18mm and 55mm. Takingthat shot at 55mm on your kit lens would result in a deeper depth of field (more background in focus) because you would be limited to the narrower aperture of f/5.6. Now, if you stayed stood in the same place and zoomed in to 55mm, then yeah, you might get slightly shallower depth of field. Whatare 55mm lenses good for? The best thing about the 18-55mm lens is its versatility. At 18mm, it is fairly wide-angled and is great for landscapes. In the middle of its range, around 35mm, it is perfect for street, travel, and documentary photography, while the short telephoto zoom of 55mm works wonders for portraits. Asa beginner photographer, two of the most popular lenses are the 18-55mm kit lens or the 50mm. If you are brand new to lenses, the difference between these might not seem that significant. After all, they both can take photos at 50mm, so why get one over the other?The biggest difference between th SXi3OP.