Meyer-Optik Gorlitz Trioplan 100mm f/2.8 II Lens for Pentax K (Black) Review

The Meyer-Optik Gorlitz Trioplan 100mm f/2.8 II is a specialized portrait and short telephoto lens for Pentax K-mount cameras. It revives a classic triplet optical design with modern coated Schott glass, built specifically to deliver the distinctive soap bubble bokeh effect that made the original Trioplan famous. At $999, it sits firmly in the boutique lens category, priced for creators who prioritize character over clinical sharpness.

This is a manual-focus-only lens with a minimum focus distance of just under three feet, making it suitable for portraiture and selective focus work. The 15-blade aperture diaphragm creates nearly circular out-of-focus rendering, and the f/2.8 maximum aperture provides decent light-gathering ability for a vintage-inspired design. The 52mm filter thread keeps accessories compact and affordable.

The Trioplan II is a niche tool. It trades modern conveniences like autofocus and electronic aperture control for a specific aesthetic that digital correction typically eliminates. If you shoot Pentax and want a lens that delivers painterly, swirly backgrounds with soap bubble highlights, this is one of the few purpose-built options on the market. For mainstream portrait or telephoto work, modern autofocus lenses will serve you better.