a blog by Matthew Duclos
Venus Optics has introduced the Laowa Sunlight 2x Full Frame Anamorphic Zoom Series, designed to make anamorphic filmmaking more versatile and accessible for full-frame users. Building on the success of the Laowa Proteus primes, these new zooms deliver the classic anamorphic look in a compact and lightweight form factor that’s easier to manage on set.
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Vintage camera lenses from the mid-20th century often develop a yellow or brown tint as they age. This “yellowing” results in a warm color cast and reduced light transmission, impacting image quality. At Duclos Lenses, our technicians frequently encounter this issue in classic optics across a wide variety of lens brands. This article endeavors to explain the technical causes of lens yellowing and outlines the process of de-yellowing – the restoration of clear glass – using ultraviolet (UV) light. We will delve into the physics behind the discoloration, the UV treatment procedure (sometimes called annealing or bleaching), as well as the associated effects, risks, and benefits. The intended audience is lens technicians and engineers, so we will prioritize scientifically grounded knowledge over speculative or anecdotal information.
Continue reading “Thorium-Induced Yellowing in Mid-Century Lenses – Cause, Effect, and Solutions”
At Duclos Lenses, we have always had an eye for glass that goes beyond the look. There’s always more than meets the eyes when it comes to optics and we have an eye for spotting potential. Some might say we are optics experts. Canon’s newly announced CINE SERVO 11-55mm T2.95-3.95 PL and RF is reminiscent of a broadcast lens, but this servo is ready to rock cinema. With wide coverage, great resolving power, and suite of professional luxuries, this lens opens the door for creatives who need versatility with little compromise.
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Leitz Cine has announced their newest lens line: the Hektor Primes, a six-lens set designed for today’s mirrorless cameras. Compact, consistent, and unapologetically character-driven, the Hektors represent a notable shift for Leitz Cine as they step into a price bracket and design philosophy aimed less at rental houses and more at working cinematographers who want artistry without sacrificing reliability or build quality.
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Sigma has officially pulled the curtain back on the 28-45mm T2 FF, the first release in its brand-new AF Cine Line. Launching November 6, 2025, this lens is more than just another short zoom; it’s Sigma’s declaration that autofocus has a place in professional cinema production. Available in L-Mount and Sony E, the 28-45mm arrives with cine-style mechanics, the optical pedigree of Sigma’s Art series, and a high-response linear actuator for fast, near-silent autofocus. For Sigma, this is both a technical showcase and a philosophical challenge to decades of manual-only cinema tradition.
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The Vespid II primes arrive with more than just a fresh coat of paint. DZOFilm has taken the core appeal of the original Vespid series and supercharged it with faster apertures, metadata support, and a refined lineup built for modern filmmaking. These lenses are not simply a sequel, they are a bold statement that DZOFilm is listening to creators and pushing their designs into territory once reserved for higher end cinema glass.
Continue reading “DZOFilm Vespid II Review: Speed, Metadata, and a Bold New Lineup”