That's all I need

I got this lens a 3 years ago as a gift from my hubby. This lens works well with my Panasonic camera. That's all I need. The lens is well made and a good weight for its size. The build quality is really nice. The action of the focus and zoom rings are quite excellent. The 12-40mm looked like an ideal choice providing the so useful equivalent of 24-80mm in full frame terms and a good maximum aperture of f2.8 throughout. It certainly hasn't disappointed. The lens has something called a "Manual Focus Cluth". Which is a ring around the middle of the lens, push it back and it changes it to manual, forward to AF. I loved it is the lens to replace having to carry several prime lenses. I highly recommend if you're looking for an extremely high quality and fast lens.

Details
* 3.3x Zoom Lens
* Manual Focus Clutch Mechanism
* Splashproof,Dustproof,Freezeproof
* Filter Diameter: 62mm
* 28-80mm (35mm Equivalent)
* High-speed Imager AF (MSC)
* built the 12-40mm f2.8 PRO zoom accordingly.