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For a large format wheel, the EFW3 boasts a slim, lightweight design. It measures 238 x 213mm and weighs in at just approx. 850g. This is great news for large format set ups where weight can be a real concern. That said, the wheel is compatible with any ATIK camera through either the supplied M54 adaptor for ATIK 11000 and Atik 16200 cameras, or by purchasing an additional ATIK EFW M42 (T-thread) camera adaptor for other models. ATIK simplified the technical side of the design from the EFW2 to further improve reliability and minimise component wear and tear. However, it’s still machined from solid aluminium to produce a durable wheel that will keep turning, night after night.
ATIK 16200 users will also be pleased to know that the EFW3 can either be attached directly to the camera as it is, or after removing the front plate to further minimise any backfocus requirements. With the front plate attached, the backfocus is 41.5mm, while the backfocus with the front plate removed is just 34.5mm. On the software side of things, the EFW3 has a full ASCOM driver. This means it can be controlled with any ASCOM complaint software. Additionally, Artemis Capture can be used to control the EFW3 for simple and efficient operation.
EFW3 body with for 7x50.8mm filters
Hex key kit
Screws, plastic washers
3-metre USB cable
1.8-metre battery power connector
CD-ROM with drivers, software and user's manual (PDF)
Quickstart guide (paper)
Please note that for cameras other than the ATIK 16200 and Atik 11000, you will need an additional ATIK EFW M42 (T-thread) camera adapter to attached your camera to the EFW3.