Forexample it is common to have f 18-55 and f4-5.6 55-200 lenses. (f3.5-5.6 18-55 means the lens' maximum aperture is f3.5 at 18mm and f5.6 and 55mm, and some intermediate values between them) In this case for example the first lens will only get you to f5.6 at 55mm, while the other will get you down to f4 on 55mm. Mostof the kit lens are provided with 18–55mm (3.5–5.6f).Images zoomed all the way upto 55mm will create a more blurrier background. Distance from the subject to the camera. Whenyou reverse a lens you lose infinity focus, which means everything will be completely out of focus until you get extremely close to your subject. To choose magnification strength, zoom between 18-55mm. 18mm gives the strongest 4:1 magnification, and 35-55mm is good for general macro shooting. In the field, regularly The18-55mm lens is a standard zoom lens that is commonly used in entry-level DSLR cameras. The lens has a variable focal length range of 18mm to 55mm, which means that it can zoom in and out to capture a wide range of subjects. The 18-55mm lens is a versatile lens that is suitable for a variety of photography genres, including landscape Whatcrop factor means is that an 18mm lens on DX yields the same field of view as 27mm (18mmx1.5) on full frame. The angle-of-view provided by an 18-55mm lens on a DX sensor is the same as the angle-of-view of a hypothetical 27-82mm lens on a full-frame sensor. This is why it is said to be equivalent, because the resulting angle-of-view The18-55mm ƒ/ is a plastic lens, with no metal lens mount or filter ring. As an advantage this makes the lens very light (265g, 9.3oz) and easy to handle; however, it doesn't feel as ReviewPrice: £130. The standard kit lens, the 18-55mm straddles the 30mm standard focal length (35mm equivalent), so this is likely to be the most commonly used of Samsung’s NX lenses. The 3x Thisshortcoming will also hinder the ability of the 18-55mm focal length kit lens to allow low light or enough light through the opening, potentially underexposing your image quality. This low light could also result in having to raise your ISO, creating a grainier, or noisier image than often preferred. 3bROMt6.