{"id":361656,"date":"2022-02-17T09:46:51","date_gmt":"2022-02-17T09:46:51","guid":{"rendered":"https:\/\/www.fujifilm-x.com\/?post_type=learning-centre&p=361656"},"modified":"2022-02-17T09:46:51","modified_gmt":"2022-02-17T09:46:51","slug":"whats-inside-your-lens","status":"publish","type":"learning-centre","link":"https:\/\/www.fujifilm-x.com\/en-gb\/learning-centre\/whats-inside-your-lens\/","title":{"rendered":"What\u2019s Inside Your Lens?"},"content":{"rendered":"\n

The names of our lenses can get a bit technical sometimes, and this is because they follow a naming system that is based on the technology inside them. Starting at the beginning of the lens\u2019s name, X Series lenses are divided up into two camps: XC and XF.<\/p>\n\n\n\n

XC<\/strong>\u00a0\u2013 More compact, lightweight and affordable. Ideal for those starting out.
\nXF<\/strong>\u00a0\u2013\u00a0Built to exacting standards, with more metal in their construction.<\/p>\n\n\n\n

Next in the lens\u2019s name comes the focal length, in mm, and the maximum aperture. After that you may see an R \u2013\u00a0this indicates the lens has an aperture ring control.<\/p>\n\n\n\n

Then comes a string of other letters, which may, or may not, include the following:<\/p>\n\n\n\n

LM<\/strong>\u00a0\u2013 Linear motors power autofocus in this lens, for fast, virtually silent performance.
\nOIS<\/strong> \u2013 Optical Image Stabilisation technology protects against blur from camera shake.
\nWR<\/strong>\u00a0\u2013 Weather-resistant sealing protects against dust and moisture.
\nMacro<\/strong>\u00a0\u2013\u00a0This lens is capable of very close focusing and reproducing an image on the camera\u2019s sensor that is either life-size or half life-size.<\/p>\n\n\n\n

Put all these together and you have a lens name like this one:<\/p>\n\n\n\n

XF80mmF2.8 R LM OIS WR Macro<\/p>\n\n\n\n

\"FUJINON<\/figure>\n\n\n\n
\"Orange\n
\u00a9 Bobbi Lane<\/figcaption><\/figure>\n\n\n\n

There are also other optical technologies not indicated in a lens\u2019s name, but which are crucial to its performance. These include:<\/p>\n\n\n\n

ED (Extra-low Dispersion) glass<\/strong>
\nThis is used in many of our lenses to minimise colour fringing around high-contrast edges. It works by making sure that light rays of different colours come into sharp focus at the same point.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

HT-EBC (High Transmittance Electron Beam Coating)<\/strong>
\nOriginally developed for broadcast lenses, this advanced optical coating minimises the amount of light that reflects off the glass elements in your lens instead of passing through them. This not only ensures you\u2019re capturing as much light as possible, but also reduces flare and ghosting caused by internal reflections.<\/p>\n\n\n\n

\"Group\n
\u00a9 Jonas Rask<\/figcaption><\/figure>\n\n\n\n

Aspherical lens elements<\/strong>
\nTraditionally, the shape of glass lenses is based on the curve of a sphere, but lens elements produced in this way can focus light rays passing through their edges at a slightly different place to those passing through their centre, which leads to image quality problems. For this reason, we use aspherical lens elements in some of our lenses. These have a curvature that\u2019s not derived from a sphere, but is instead computer designed to maximise image quality.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

These powerful lens technologies help to deliver outstanding results across our range, producing accurate colours, superb levels of detail, and outstanding subject definition, all of which is harnessed whenever you make an image.<\/p>\n\n\n\n

\"Historic\n
\u00a9 Elia Locardi<\/figcaption><\/figure>\n\n\n\n

Your Next Steps<\/h2>\n\n\n\n