How deep is the scratch? Can you feel it with your fingernail? If so I think it'll be toast.
You can pickup some "Jewlers Rouge" from a local glass shop... Won't need that much. "Wax" it on like a car war, small circles over the scratch untill the scratch isn't visable. Now if it is a deep scratch and you are able to buff it out, you'll have to be carefull to not end up with a fish eye effect on the lens.
Now that is only for glass... If it's acrylic use some varasol on the plastic, removes minor and some serious scratches...
Best of luck
You can pickup some "Jewlers Rouge" from a local glass shop... Won't need that much. "Wax" it on like a car war, small circles over the scratch untill the scratch isn't visable. Now if it is a deep scratch and you are able to buff it out, you'll have to be carefull to not end up with a fish eye effect on the lens.
Now that is only for glass... If it's acrylic use some varasol on the plastic, removes minor and some serious scratches...
Best of luck