Yeh, I basic question.. but I was comparing Canon, Sony, Panasonic, Zeiss and Sigma lenses... and Panasonic and Sigma tend to be much better priced. 

The panasonic lenses have the disadvantage of being m4/3.. but the Sigma ones are good. 

Are they inferior in terms of quality ?

Please help

Thanks

Edited by TeamSharecg on 06/08/17 01:31 PM.

The Sigma 18-200mm has OS Optical Stabilisation which means you get less blur and shake free pictures usually 3 to 4 stops. Also the motor is a little quieter and slightly less Chromatic Aberrations. Although it’s heavier than the 28-300mm due to housing of the OS system

Edited by TeamSharecg on 06/08/17 01:32 PM.

hi i am interested

less blur and shake free pictures