This sv550 prime focus photography, also known as direct focus photography, is a method of directly using the telescope to take pictures without adding any optical objects between the telescope and the camera.

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Eyepiece projection is a great way to take detailed shoots of moon and planets. Photographed objects in these images are considerably larger and show more detail than such taken with prime focus shots. This SV550 OTA set can realize eyepiece projection. Not include eyepiece, you can choose eyepiece from svbony website.

SV193 2" 0.8x focal reducer and field flattener, designed specifically for SV503 80mm f/7 ED Refractor telescopes, which can meet the illumination needs of full-frame shooting. The field flattener corrects the inherent spherical aberration of curved lenses which causes distortion at the edges of the field of view. The default back focus is 55mm. 

this sv503 set connected for prime focus astrophotography,give you more playing methods,let's try it now,any questions,contact us freely!

These Mk105 telescope bundle are suitable for visual observation of the sky star. 

This SV550 set connected  for CMOS astrophotography,give you more playing methods,let's try it now,any questions,contact us freely!

This sv503 set connected for prime focus astrophotography, can give you more playing methods.

This SV503 set connected for CMOS astrophotography,give you more playing methods,let's try it now,any questions,contact us freely!

This sv503 set connected for Eyepiece Projection astrophotography, Not include eyepiece,you can choose eyepiece from svbony website.