Viewport Error?

Hi can someone explain why this is occurring…it seems the more I zoom out the more I’m able to see through the mesh when in perspective mode. Not sure whether it has to do with the scale or view-port lens setting but its kinda annoying. Btw the view-port lens setting is at 35mm.
[ATTACH=CONFIG]329653[/ATTACH][ATTACH=CONFIG]329654[/ATTACH]

Have you changed from the default 3d view clip start distance. If so, don’t


OK thanks…I set them back to default and now everything seems legit.