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A Nikon 85mm f 3.5 lens costs 413 pounds
A Nikon 85mm F1.4 lens cost 1248 pounds
I don't know these lenses and there is the possibility that one is badly designed / manufactured - thats the small print.
But to make F1.4 lens each element has to be twice the area for each stop, so lets say 6 times the area/size of each element, this is harder to manufacture.
The faster the lens the more problems there are with scattered light and problems as you stop down.
All thing being equal the darker lens is more likely to be better. What ever the cost.
If you have to have to f1.4 lens then thats it, but to buy it because its expensive is stupid.
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