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Next Stargazing Feb 18th
Next Stargazing Feb 18th

4.2mm Filter Slider Adapter

In Stock
$19.95
SKU
In Stock!
This adapter adds 4.2mm to your Starizona Filter Slider making it 21.7mm in total length, compensating for the .7mm that a standard Filter adds to your backfocus. This should be used to replace a 21mm ZWOT-to-T adapter with the Starizona Filter Slider .

Instructions