I purchased the Bushnell 450 about three weeks ago. I used it several times (8 - 10) and was "giving it a chance" because it was new to me and perhaps needed "breaking in". The range finder cannot access the target (flag) sometimes as close as 140 - 150 yards. Even when the flag is moving and standing out in full view, I cannot get a reading. I resort to sighting in on people in the group in front of me to get the distance. The control button is also hard to depress and when I follow the
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instructions and press twice and see "target accessed/acquired" I get a blank reading, and no a distance reading. It is OK in the 100 -125 yard range but not much farther out but even then, when I get a distance, it takes a long time to display it. After seeing all the advertisements on the Bushnell and the endorsements by PGA players (Ricky Fowler, etc.) I thought it would be good. It is not. I dislike the product and am researching my options to return it. Do not buy one, it is very disappointing.