The image stabilizer can be turned on by a single press of the button easily accessible. After 5 minutes, the stabilizer switches off again when not previously pressed the button again. If you hold down the button, the image stabilization is activated as long as you hold the button. Left to go, the stabilization is switched off again.
Is operated to stabilize with 2 mignon cells that are located on the lower part of the photo thread connection with a coin under a flap that opens. In normal conditions, about 2 hours watching stabilized with one set of batteries / rechargeable batteries possible. However, as observed no working 2 hours continuously, you can loose by standing with a set an observation night.
Even without batteries the binoculars remains functional, of course, only one should be looking for a tripod. 15x is clearly also the strongest and quietest observers - if at all - to keep quiet just for a split second.
The image stabilizer calms the image greatly. Fluctuations in the state are not balanced, as for example, do the Fujinons. For every move the glass follows willingly. The tremor is completely suppressed. If you hold for example on a 2km distant church tower, so you can without image stabilization, the clock does not read, with image stabilization, it is like looking at the watch.
Examine binoculars on the smallest aberrations's going best of Nächtens. The picture in 15x50IS shows surprisingly little longitudinal chromatic aberration, probably because of the UD lenses that Canon has used. If not correct insight, you might think the glass has astigmatism. The eyecups can not wear glasses even normal vision to a relaxed look. It is absolutely incomprehensible how Canon can miss such a high-quality (and high-priced) product such eyecups. These should be replaced.
The glass does not come with dust covers. So you have to watch that you touch neither the objective nor the eyepiece when stowing his fingers. The cloth bag that is delivered to and in which the glass is otherwise stored unprotected, aroused little confidence. This too is incomprehensible. A few rubber plug for 50 cents would have Canon can mitliefern already.
Is the glass worth the money? Everyone needs to decide for themselves. For astronomical applications this is 15x50 definitely worth the money. What with tripod and the concomitant freedom of movement was possible before, now is also sometimes just with one hand alongside. Stars that from 8x only chaotically were moving Wusslons latest, are now clearly in the picture. The detailed recognition takes Nachts- as well as during the day dramatically.
For birdwatchers, the glass is certainly well meant, even with high contrast (bright light, dark tree) shows the glass barely yellow / blue edges. Quite on the stabilization history Canon has here delivered a very good glass that is sharp across the field and has surprisingly little curvature of field.
