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Designed specifically for SV503 70mm, 80mm, and 102mm f/7 ED Refractor.

All in-stock now!

US$ 135.99

When the focal length of the telescope is too long to observe a large area of celestial body with low magnification (such as the moon), you can connect the telescope with a focal reducer, shorten the focal length first, and then use a low magnification lens to observe.

US$ 13.99