Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Enjoy free shipping during the holidays! Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC and to all U.S. Military APO/FPO/DPO addresses.

Enjoy Our Extended FREE RETURNS

We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later). We'll even cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Questions & Answers

Code: 5A-TA-EV1FOC-EV1C

MPN: EV1C

Product No Longer Available

Product Info for JMI Telescopes EV-1 Telescope Event Horizon 2in. Focusers

The JMI Telescopes EV-1 Telescope Event Horizon 2in. Focusers allows a perfect calibration on your 6" to 16" Cassegrain telescopes. This Telescope Accessory from JMI Telescopesoffers fine focus after roughly adjusting your telescope with normal focusing knobs. Featuring dual-speed manual controls, the JMI Telescopes EV-1 Telescope Event Horizon 2 inch Motorless Focuser are over 15 times finer and 1.5 times finer than most rack and pinion focusers. Including an SCT threaded output adapter, the JMI Telescopes EV-1 Telescope Event Horizon 2 in Cassegrain Focuser makes this focuser so much more.image

Specifications for JMI Telescopes EV-1 Telescope Event Horizon 2in. Focusers:

Fits: 6" to 16" Cassegrain telescopes

Features of JMI Telescopes EV-1 Telescope Event Horizon 2in. Focusers:

  • Two knobs with 9:1 ratio
  • Dual-speed manual controls are over 15 times finer (small outer knob) and 1½ times finer (large inner knob) than most rack-and-pinion focusers
  • Lifts up to 8 pounds

Package Contents:

  • JMI Telescopes EV-1 Telescope Event Horizon 2in. Focusers

Related Products to JMI Telescopes EV-1 Telescope Event Horizon 2in. Focusers

JMI Telescopes EV-1 Telescope Event Horizon 2in. Focusers Unavailable & Discontinued Models

List of Unorderable Models

  • JMI Telescopes EV-1c ,Cassegrain Telescope Focuser EV1C , MPN: EV1C , Code: 5A-TA-EV1FOC-EV1C
  • JMI Telescopes EV-1n ,Newtonian Telescope Focuser EV1N , MPN: EV1N , Code: 5A-TA-EV1FOC-EV1N
  • JMI Telescopes EV-1r ,Refractor Telescope Focuser EV1R , MPN: EV1R , Code: 5A-TA-EV1FOC-EV1R
  • JMI Telescopes EV-1c with Motor Telescope Focuser EV1CM , MPN: EV1CM , Code: 5A-TA-EV1FOC-EV1CM
  • JMI Telescopes EV-1n with Motor Telescope Focuser EV1NM , MPN: EV1NM , Code: 5A-TA-EV1FOC-EV1NM
  • JMI Telescopes EV-1r with Motor Telescope Focuser EV1RM , MPN: EV1RM , Code: 5A-TA-EV1FOC-EV1RM
Compare (0)