SVBONY SV555 54mm Petzval APO Refractor Telescope for Astrophotography, New Upgraded Precision Focus, Full Frame Compatibility, F4.5-F22 Variable Aperture, Includes EAF Mount Kit, APO SLR Camera Lens
Professional APO Triplet Lens: Features a Petzval triplet lens structure for superior image clarity and flat field performance; eliminating coma and chromatic aberration—perfect for deep-sky astrophotography
Precision Focus System Upgraded: Enhanced focus travel (2.67mm-3.22mm) ensures zero back-focus issues; Smooth fine-adjustment focuser supports accurate framing for stars and landscapes
Full-Frame Compatibility: Designed for 44mm full-frame sensors without vignetting; Compatible with DSLR; mirrorless; and astronomy cameras for breathtaking wide-field images
Variable Aperture & Portability: Adjustable from F4.5 to F22 for versatile shooting conditions. Weighs 90g less than previous models—ideal for travel and field use
EAF Ready & Includes Mount Kit: Pre-installed EAF adapter support (compatible with ZWO EAF Gen1). Comes with 2" filter holder, M72 front thread, and 360° rotatable tube for flexible shooting angles
