Askar 5-in-1 M54 Filter Drawer

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About this product

This multi-functional filter drawer can accommodate both mounted filters (1.25"/2") and unmounted filters (31mm/36mm/50mm) and connect both to the camera side and telescope side with either M42 (T2)/M48 and M54 threaded adaptors.

Assembly Steps:

Please follow the steps below to assemble the Askar filter drawer and use it in your optical system.

1. Remove the main body of the Askar filter drawer.
2. Choose the correct camera adapter, matching the thread type of your astronomy camera.
3. Fix the camera adapter onto the main body with the included 5 x M3×8 countersink screws and M2 wrench.
4. Choose the correct telescope adapter, matching the thread type of your telescope.
5. Thread on the telescope adapter.
6. Connect the filter drawer and your telescope.
7. Connect your astronomy camera and the filter drawer.
8. Ensure these accessories are tightly connected and the system has the correct back focus. You can add extra spacers to reach the required back focus.
9. Choose the correct filter slider according to the filter size you will use. If choosing a 1.25" or 2" mounted filter, directly thread it onto the filter slider. If choosing a 31mm, 36mm or 50mm unmounted filter, gently put the filter into the circular groove and superimpose the filter holding ring. Fix the holding ring with the 3 x M2×4 countersink screws and the M1.27 wrench to hold the filter securely.
10. Insert the filter slider into the Askar filter drawer, and it’s ready for astrophotography.

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