Samyang Reflex 300mm f/6.3 ED UMC CS Lens for Sony E Mount (Black)

Samyang 300mm f/6.3 Sony E Reflex Prime

The Samyang Reflex 300mm f/6.3 ED UMC CS Lens for Sony E Mount is a masterclass in super-telephoto engineering, providing Sony APS-C mirrorless creators with a massive 450mm equivalent perspective. This specialized tool is meticulously designed as a premier 300mm mirror lens Sony E solution, offering extreme reach in a remarkably portable form factor. Its refined mirror-based optical path ensures that every long-distance project maintains high resolution without the bulk of traditional telephoto glass.

Built with technical mastery, the optical design features 9 elements in 9 groups, incorporating one extra-low dispersion (ED) element to effectively eliminate chromatic aberrations while maintaining clinical sharpness. The fixed f/6.3 aperture enables exceptional deep depth of field for wildlife and celestial photography, ensuring distant subjects are rendered with notable contrast. Professional shooters value this specialized tool for its agility and rugged build, making it a cornerstone for professional wildlife documentation and expedition assignments across the USA.

Samyang Reflex 300mm f/6.3 Specifications

• Focal Length: 300mm (450mm 35mm equivalent).
• Maximum Aperture: f/6.3 fixed mirror design.
• Minimum Focus Distance: 2.95 ft (90 cm).
• Optical Design: 9 Elements in 9 Groups.
• Lens Mount: Sony E compatible (APS-C).
• Filter Size: 58 mm (Front) / 25.5 mm (Rear).
• Weight: 11.2 oz (320 g).
• Official 1-Year Limited USA Warranty.

Optical Craftsmanship and Mirror Logic

The technical definition using specialized Cassegrain mirror optics reduces the physical length of the lens while maximizing the effective focal reach. This benefit ensures the extreme telephoto resolution and contrast required for professional nature and wildlife documentation. Field specialists benefit from this 9-element construction by achieving high micro-contrast and realistic textures in remote environments during intense sessions.

Manual Focus Precision System Logic

The tactile manual focus ring provides smooth and silent focusing for critical subject tracking in long-distance stills and video. This benefit improves the precision manual focusing workflow for photographers who require absolute control over the focal plane during nature sessions. Advanced shooters benefit from the long focus throw, allowing for precise creative adjustments in dynamic work settings on location without electronic lag.

Ergonomic Build Chassis and Portability

The lens weighs only 11.2 oz (320 g) with a solid all-metal barrel design for enhanced field durability in high-stakes environments. This robust tactile mirrorless build adds reliability for harsh outdoor environments including rain and forest floor moisture. Professional expedition photographers value this solid construction when documenting assignments in demanding conditions where gear integrity and mechanical precision are essential.

Field Deployment and Wildlife Utility

The 450mm equivalent reach supports specialized shooting tasks for professional photographers seeking to isolate distant wildlife or architectural details. This setup reduces the equipment weight pain point by providing a super-telephoto lens solution that excels in handheld operation. Real-time digital storytellers thrive with this optical setup in dynamic work settings where mobility and professional results are paramount for success.

Maintenance Protocol and Care

Routine cleaning prevents smudge damage on the multi-coated front element, ensuring maximum optical contrast and light transmission for the sensor. Storage in humidity-controlled environments keeps the internal mirror surfaces and high-index optics pristine for years of reliable service. Pro Tip: Use a high-quality monopod to stabilize the narrow angle of view for critical sharpness during high-magnification telephoto sessions.