Meade Instruments 07363 No.64 SLR Camera T-Adapter for Select ETX Models (Black) Compatible with all ETX-90 and ETX-125 models including ETX-90, ETX-90RA, ETX-90PE, and all ETX-125 and ETX-125PE models. Ultra Telephoto photography is made easy with this item Be sure to lock up the mirror and use a cable release or remote to fire the shutter to minimize overall vibrations Focus mode switch on your camera must be on "manual focusing" Comes with a 1-year limited warranty