Quick Answer
Mistakes made when glassing can result in missed opportunities and wasted time. Common errors include scanning too quickly, failing to account for cover and concealment, and not using the right magnification. Hunters often neglect to adjust their technique for varying light conditions.
Insufficient Scanning Time
When glassing for mule deer, it’s crucial to scan the area thoroughly. I recommend spending at least 30 seconds to 1 minute per scan, focusing on a specific section of the terrain. This allows you to take in the entire scene, noting any movement, vegetation, or other factors that might indicate deer presence.
Failing to Account for Cover and Concealment
Mule deer are masters of concealment, often using cover such as trees, rocks, and brush to remain hidden. To account for this, I recommend using a 10x or 12x spotter scope and scanning at a 45-degree angle to the terrain. This allows you to see into the cover and detect even the slightest movement. Additionally, consider scanning the terrain from multiple angles to increase your chances of detection.
Adjusting for Light Conditions
Light conditions can significantly impact glassing effectiveness. During dawn and dusk, when the sun is low, use a 12x or higher magnification to take advantage of the available light. In bright midday light, reduce magnification to 7x or 8x to avoid glare and maintain a clear view. In low light conditions, such as overcast or foggy days, use a 10x or lower magnification to avoid reducing the available light.
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