The viewfinder observation is shown here perpendicular to the receptacle axis. For cross or vertical it is fully rotated through 360 °, and provided with four click-stops every 95 °.
The viewfinder image is very, very bright and extremely sharp, indicating a high quality of the lenses used! With its fully adjustable diopter compensation and possible setting for either 1.25x or 2.5x magnification. Supplied with two adapters Ec-C (for all digital EOS) and Ed-C (with all analog cameras) included. The rubber eyecup can be turned inside out for eyeglass wearers. Delivered all that is in a small plastic bag with Velcro. The angle finder is very well made and mostly made of metal. He feels very high quality.
The attachment to the camera is very simple. The eye cup is removed and the camera instead of the Angle Finder with adapter plugged, ready.
Of course, the angle finder is also compatible with the Extender EP-EX15 and usable.
If you are working without a tripod, it is beginning a little unfamiliar to align the viewfinder properly because they now have a different view axis. But more often they see through the easier it is for them.
For macro photography is an absolute must.
I thank you - you have found mistakes? If you have something unclear? Know more facts? If so, please take this opportunity to write to me.