Olympus Tracker 10-30 x 25 Zoom PC I

12x is way to high power for this size binoculars. you won't be able to get a stable view, because of the movements of your hands, and the 25mm aperture is too small for this power, so everything will appear to be dim... though the prisms on these...

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These binocs have a very dull and blurry image thats almost impossible to focus properly. And using any power over, say, 15X results in too much hand shake to see clearly.