Cannot Scan Barcodes Using a Samsung Galaxy Tab2 Tablet

I have a Galaxy Tab 10.1 and a Nexus 7, both can scan barcodes using the ZXing app without any issues.

You must have a magic touch NJDude. I tried again even using Xzing software scanning using the Galaxy Tab2 7 inch without any success. It has a 3 Mpixel rear camera. It does not look like it has any focus. The image is very blurred. Is there a setting that needs changed? Do you have a better Mpixel camera perhaps on your 10 inch? I tried all kinds of codes (normally I use code 128) even on beer bottles, flat sheets , laminated, non laminated. It just does not do it. Any other ideas?
Thank you

It seems there's an issue with the Galaxy tab 7, read THIS.

By the way, my Galaxy runs ICS 4.0.4 and my Nexus 7 Jelly Bean 4.2.2.

OK, Thanks NJDude. I can see why. I am known to be a little shaky, but not that shaky. I did manage to get my hand of a Nexus 7 tablet and was able to scan using its front view camera (1.2MP). But it is not as intuitive as using a rear view camera. Can someone recommend a very reliable 7 inch tablet with a rear view camera that rarely fails or does not require too much hand coordination.
Thanks again