Praktica Falcon 8x40

I purchased a pair about a year ago. From Day one blob like shadows when looking through the binoculars eye pieces. On edges like the top of a lamp post or on the head and back of birds. There is an orange yellowish tinge like a coloured shadow. To say they are made in Germany they are not that clear.
I have had in the passed used Samsung, Miranda, Jessops own brand and a few others. I should have stuck with those brands.