Sigma has announced they’re going to introduce a new range of protective lens filters made from ceramic glass, a newly developed compound that makes use of excitingly technical-sounding ‘microcrystalline spinel‘ distributed throughout the material to add strength.
The upshot are filters that are ‘up to’ 50% thinner and 30% lighter than the company’s existing offerings.
The new filters are claimed to be 10 times as strong as a regular glass protective filter and three times as strong as a toughened glass filter. They also feature a water repellent coating that should also see off oil, dust and fingerprints.
They’ll be available in 67mm-105mm filter diameters so will suit users of DSLR-sized lenses (though you could of course use step-up rings to attach them to smaller lenses if you really felt the need).
No word on pricing or availability just yet – we’ll certainly be keeping an eye out and trying to get our hands on some samples to test out as soon as we can.