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IDAS AD42-DS Drop-in Filter Adapter
The IDAS AD42-DS is a drop-in mount adapter for IDAS DS filters, with M42 female threads on both sides. Its flange-to-flange length is 19.85mm, which becomes 19.5mm when a filter is used. The camera side uses a tapered ring that lets you set the camera's orientation.
A 19.5mm Drop-in Filter Solution for M42 Systems
The adapter has M42 female threads on the telescope side and on the camera side. Its flange-to-flange length is 19.85mm, and it becomes 19.5mm when a DS filter is used.
Camera Rotation with a Tapered Ring
Camera rotation works through the tapered ring on the rear side. After threading the main adapter body onto your telescope-side equipment, a separate tapered ring is threaded onto your M42-mount camera. You can then insert the camera and ring into the adapter, orient it, and lock it securely in place by tightening three small set screws.
Designed for the IDAS DS Drop-in Filter System
The adapter has an inlet for a DS filter. It is made for IDAS DS filters.
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Compatible Filters: GNB DS, HEUIB-II DS, NGS1 DS, NB1 DS, ODW/Clear DS, and DTD DS.
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How much back focus does the IDAS AD42-DS adapter use?
The adapter's flange-to-flange mechanical length is 19.85mm when empty. It becomes 19.5mm when a DS filter is used.
How do I rotate my camera with the IDAS AD42-DS adapter?
Camera rotation is achieved using a two-part locking mechanism. First, un-tighten the three set screws on the adapter body and remove the inner tapered ring. Thread this ring onto your camera. Then, insert the camera with the ring back into the adapter body, rotate it to your desired orientation, and tighten the three screws to lock it in place.
Which filters are compatible with the IDAS AD42-DS?
This adapter is designed exclusively for the IDAS DS drop-in filter series. Compatible models include:
- GNB DS
- HEUIB-II DS
- NGS1 DS
- NB1 DS
- ODW/Clear DS
- DTD DS
Once the IDAS AD42-DS is installed, how do I insert a filter?
The IDAS AD42-DS has a dedicated slot, or "inlet," on the side of the adapter body. Slide the IDAS DS filter into this inlet.
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| Brand |
IDAS (ICAS Enterprises, Japan) |
| Threads |
M42 female to M42 female, with camera rotation |
| Flange-to-flange length |
19.85mm (19.5mm with a filter installed) |
| Compatible filters |
IDAS DS drop-in filters (GNB DS, HEUIB-II DS, NGS1 DS, NB1 DS, ODW/Clear DS, DTD DS) |
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IDAS AD42-DS Drop-in Filter Adapter
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Contact us for warranty details.
