Wählen Sie Ihre Sprache
  • Deutsch

    Sämtliche Inhalte auf der CPN-Website sind auf Englisch verfügbar. Einige Inhalte, wie z. B. Produktbeschreibungen, aktuelle Produkteinführungen und einige technische Artikel, sind ebenfalls auf Deutsch, Spanisch, Französisch, Italienisch und Niederländisch erhältlich. Wählen Sie in der Liste oben Ihre Sprache aus, damit sämtliche darin verfügbaren Inhalte automatisch entsprechend Ihrer Wahl dargestellt werden. Ansonsten wird als Standardsprache Englisch verwendet.

  • English

    All content published on the CPN website is available in English. Some content – such as product descriptions, recent product launches and some technical articles – is also available in German, Spanish, French, Italian and Dutch. Choose your language from the list above and all content that is available in your language will automatically be displayed in your language, otherwise the default language will be English.

  • Español

    Todo el contenido publicado en la página web de CPN está disponible en inglés. Parte del contenido –como descripciones de producto, lanzamientos recientes de productos y algunos artículos técnicos– también están disponibles en alemán, español, francés, italiano e holandés. Elija su idioma en la lista anterior y todo el contenido que esté disponible en su idioma aparecerá automáticamente en ese idioma, o , si no, en el idioma predeterminado que es el inglés.

  • Français

    Tout le contenu publié sur le site Web de CPN existe en anglais. Une partie du contenu (comme les descriptions de produit, les lancements récents de produit et certains articles techniques) est également publié en allemand, en espagnol, en français, en italien et en néerlandais. Choisissez la langue dans la liste ci-dessus, et tout le contenu offert dans votre langue s’affiche automatiquement ; par défaut, le reste s’affiche en anglais.

  • Italiano

    Tutti i contenuti pubblicati sul sito CPN sono disponibili in inglese. Alcuni contenuti come descrizioni di prodotto, lanci di prodotti recenti e alcuni articoli tecnici sono disponibili anche in tedesco, spagnolo, francese, italiano e olandese. Seleziona la lingua dall'elenco in alto e automaticamente si visualizzeranno tutti i contenuti disponibili in quella lingua; diversamente la lingua di default sarà l’inglese.

  • Nederlands

    Alle inhoud die op de CPN-website wordt gepubliceerd, is beschikbaar in het Engels. Bepaalde inhoud, zoals productbeschrijvingen, onlangs gelanceerde producten en sommige technische artikelen, zijn ook beschikbaar in het Duits, Spaans, Frans, Italiaans en Nederlands. Kies de taal uit bovenstaande lijst, waarna alle inhoud die beschikbaar is in de gewenste taal, automatisch in die taal wordt weergegeven. Anders is Engels de standaardtaal.


Dieser Artikel ist leider nicht verfügbar auf Deutsch

Flash: Red-eye

Another common problem when photographing people using a hot-shoe mounted flash gun is red-eye. This shows as a distinctive red glow in the centre of the subject’s eyes.

Red-eye is caused by the flash illumination being reflected off the blood vessels at the back of the eye. If the Speedlite is close to the lens axis, these rays are reflected straight back to the camera.

Red-eye is most likely to occur in low-light situations, when the pupils of the eye are dilated (wide open). Photographing people at parties and wedding receptions can also be a problem, as alcohol has a similar effect on the pupils.

Many EOS cameras have a red-eye reduction feature. This works by shining a bright light at the subject for a second or two before the shutter fires. The light makes the pupil contract, reducing the risk of red-eye. However, the bright light can be distracting, and the delay between pressing the shutter release and the shutter firing inconvenient.

It helps if you can increase the level of light in the area before taking pictures. If this is not possible, try asking your subject not to look directly at the camera.

However, the real cause of red-eye is the close proximity of the flash unit to the axis of the camera lens. You can eliminate red-eye completely by using the Speedlite further away from the camera − often no more than 15cm to 30cm is enough. This can be done using the Canon Off Camera Shoe Cord.

If it is essential to use a Speedlite attached to the camera, and red-eye appears in some of your images, digital photography provides another solution. It is relatively easy to retouch the red areas, giving the eye a natural appearance, using imaging software such as Adobe Photoshop.

Left: Red-eye is a red glow that can appear in portraits taken with flash. It is most likely to a occur when the flash gun is used close to the lens axis (built-in flash, or a Speedlite attached to the camera).

Centre: Red-eye is relatively simply to remove digitally, With Photoshop, enlarge the image to give a large eye. Draw round the red area of one of the eyes with the lasso tool. This will select the area. Go to Select>Feather and enter a value of about 5. Then go to Image>Adjustments>Desaturate. This will replace the red area with grey. Repeat for the other eye.

Right: You can avoid the need for digital retouching by using the flash a little further from the camera. The Off Camera Shoe Cord links the Speedlite to the camera hot-shoe, retaining all the functions. The coiled cord extends to about 60cm − more than enough to eliminate red-eye.