The samyang 135mm f2 lens has a low price tag making it affordable. The 135mm f2 is a manual focus lens with a built with metal and high quality plastics. The focus ring has a smooth feel to it with just the right amount of resistance. This lens is available for Canon, Nikon, Sony E mount and Fujifilm X. The 135mm f2 goes for $772 AUD at digidirect Australia.