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This teleconverter can be used with all telescopes with a focal length between 500 and 1000 millimeter and it multiplies the focal length 1.4 times. Thanks to the appropriate adjustment with graduated scale it perfectly adapts to different telescopes. High optical quality and mechanical precision ensure maximum performance of your telescope.
When using DSLR cameras, this is the recommended configuration: Borg 1,4x DX teleconverter - 7000 adapter - M49.8 ring 500x - DSLR camera
