What is the key to low beam?
The preview button is usually mounted under the lens.
- The viewfinder and in part also the Live View of modern cameras use often the maximum aperture. This allows you to see your image is always very bright and accurate.
- With the preview button you can switch the viewfinder from this open blendigen method to the aperture of the Work.
- The working aperture is currently set aperture. Now you will see your image as it is later shot will look like.
Canon EOS 550D: low beam button
Tips for Working with the preview button
- You move when taking pictures on a regular basis about the Ablendtaste in the working aperture. This way, you can immediately check the lighting conditions and if necessary. with the ISO-value is correct.
- In addition, you will now see your set focus range - so you can focus on your subject optimally and the depth of field check.
Useful way to do so, set your white balance manually.
