SV555 & Canon EOS RP June 25, 2025
Single-frame star field shots (no tracking or post-processing) demonstrating the SVBONY SV555 APO astrograph sharpness across the field of view of 8.4x5.6 ° at full f/4.5 aperture. Exposure details are below the photos
All images June 24, 2025 11:04 - 11:30 EDT Carleton Place Bortle 4.5 slightly hazy. Shortest exposures of 1 sec almost eliminate star-trailing.
Lower section shows SV555 photos of simulated stars using a high resolution image with 9 single white pixels as described in graphic below. All images are the original high resolution 6240x4160 25MP jpg EOS RP photos.


P1: Lyra-Vega ISO-1600 1sec P2: ISO-3200 1sec
P3: Lyra-Ring Nebula ISO-10000 1sec P4: ISO-20000 1sec
P5: Mizar/Alcor ISO-12800 1sec P6: ISO-12800 2sec P7: ISO-12800 4 sec
Star simulation photos
Click through to see SV555 photos of laptop 9 single pixel test image pattern, aligned
at center, upper center, upper-left and lower-right sequentially.
All shots are ISO-100 2 sec in very dark room.