Photos blurry, even when using flash

[weepete]

If you are using fill flash you'll still need a resonable shutter speed to avoid slight blur as it's only there to lift the foreground shadows. Especially if your ambient light is close to the EV from your flash exposure, you can get a double exposure effect too which can cause a slight bluring though I'm not sure if that is the case here. Worth remembering though.

But yeah, as the guys have said make sure you've stopped down, got sufficent DOF and have picked the correct focus point in the first instance

 

[lance70]

If you get more into flash photography you may want to consider picking up a light meter....I was having a similar issue when I started out and received really good advice on here and started seeing improvements. Once you find the sweet spot for your lens it will help you get sharper images as well.