![RedCat 51 DSLR Filter Slider Adapter Kit](http://starizona.com/cdn/shop/products/spacecat-dslr-adapter6_650x650.jpg?v=1581753955)
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By removing the original faceplate or tip-tilt adapter on the RedCat 51 you can thread this adapter directly to the scope giving you the correct threads and backfocus to use a Starizona Filter Slider and your DSLR with 55mm of backfocus.