Sigma Tele Converter TC-2011 for 2.0 Times Magnification Factor, L-Mount Lens, Dust and Splashproof

The Sigma TC-2011 is a 2.0× teleconverter for Leica L-Mount, engineered to double the effective focal length of compatible L-Mount lenses while preserving autofocus, exposure, and electronic communication. With an 8-element, 4-group optical construction and A1 MTF inspection, the TC-2011 extends reach with minimal compromise, making it a practical tool for wildlife, sports, and travel photographers.

Compact at $\phi65.2 \text{ mm} \times 46.9 \text{ mm}$ and weighing only $205 \text{ g}$, the TC-2011 is designed to be light enough for handheld use yet robust with dust and splash proof sealing, when paired with sealed lenses and camera bodies. The converter supports full electronic data transfer so stabilization, EXIF, and metering remain functional with compatible systems.

Problem

Need more reach without buying a heavy, expensive super-telephoto lens, and worried about AF, image quality, and weather reliability when using extenders.

• Expensive telephoto lenses create budget and portability barriers.
• Many extenders reduce AF reliability and image sharpness noticeably.
• Outdoor shooting demands weather-resistant accessories for reliability.

Solution

The TC-2011 offers a cost effective way to achieve ultra-telephoto focal lengths, while preserving autofocus, stabilization, and camera-lens communication. It fits directly to Leica L-Mount lenses, uses precision optics to minimize degradation, and is tested under Sigma's A1 MTF process to ensure consistent sharpness.

Benefits

• Extended Reach: Achieve double the focal length without buying a new lens.
• Maintained Usability: AF, EXIF, and stabilization remain functional with compatible setups.
• Field Durability: Dust and splash proof design adds confidence outdoors.
• Portable Performance: Lightweight design preserves mobility for travel and wildlife work.

Applications

• Wildlife photography for distant subjects and detailed framing.
• Sports photography where distance to action is significant.
• Travel and outdoor shooting when weight and carry space are constrained.

Why Choose

• Precision-matched for Sigma L-Mount lenses, A1 MTF-tested, and made in Japan, offering a strong price-to-performance choice versus premium OEM extenders.

Certifications

Each TC-2011 unit is inspected under Sigma's A1 MTF quality control process. The teleconverter is manufactured in Japan and features dust and splash proof construction when used with sealed lenses and camera bodies.