Photo Fix Sharpen to reduce blur the smart way
1 Open and duplicate your shot
Open your image into Photoshop with File>Open and hit Ctrl+J to duplicate it. Go over to your Layers panel (Window>Layers) and you’ll now see you have two identical Layers.
2 Use the High Pass Filter
Head up to Filter>Other>High Pass and choose the Radius amount you desire – the higher this number, the more vigorous the sharpening. Usually 2-8px works well – going higher can lead to unnatural results. Then hit OK to apply. Press Ctrl+Shift+U to convert it to mono and then, in the Layers panel, change the Blending Mode from Normal to Overlay. Erase any parts you don’t want to sharpen with the Eraser Tool and lower the Layer Opacity until you’re happy with the level of sharpening.