ZWO filter drawer for EOS lens

• It’s compatible with all ASI cooled cameras with 17.5mm back focus length (except ASI GT series).

• It’s compatible with all ZWO 2” filters, including the duo-band filter, narrowband filter, IR-cut filter, etc.

Below requirements must be met while using the 2” filter from third-party.

• With the ability of double strong magnetic adsorption, it is more convenient and much easier to install or pull out the filter.
  

• The thread of the interface is M42*0.75. You can also use the M54M-M42F adapter to connect the filter drawer to a full-frame camera.