This came with my ETX 125. I replaced it with a larger fINDER.
Included as standard-equipment on ETX-125 models, this 8 x 25mm Right-Angle Viewfinder permits a comfortable 90° viewing position with 90mm ETX models as well. The #825 fits into the same bracket as the 8 x 21mm finder supplied with ETX-90 telescopes. The finder’s wide-angle 7.5° actual field facilitates object-location.
$35. SHIPPED. PayPal + 3% OK.