Over the years I've used both the Baader Solar film and various Herschel wedges.
IMHO the clarity and definition when using the wedge is slightly superior to the solar film on smaller refractors.
I prefer the Baader Herschel wedge and recommend it.
The cost of the wedge v's the solar film is not insignificant and unless your observations are going to benefit from the improvements, the solar film is still a very good solution.
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