I am looking to purchase a Breakthrough ND filter and was wondering if anyone has tried the 2x vs 4x and compared? I would like to save the extra $50, however I am not sure if it is worth it seeing how I am strapping it to high quality glass.
Breakthrough? Reviews at B&H are pretty consistent, 5 stars is the average. At B&H, a lot of pros give pretty objective and authoritative reviews and ratings on the professional grade stuff.
I haven't used them. But I believe...
Breakthrough X4 use Shcott glass, have 16-layer "nano" multi-coating and are in brass frames.
Breaktrhough X2 uses a different type of optical glass, is also nano-coated and is in an aluminum frame.
Personally, I prefer the B+W XS-Pro (16-layer multi-coating, slim frame) or F-Pro/MRC (8-layers, standard frame). Both use Schott glass and brass frames, and they cost a little less than the comparable Breakthrough filters.
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