Telescopes and Telescope Accessories from Celestron, Meade, iOptron, Zhumell and More at Telescopes.com
1-800-303-5873
GUEST#   0
Shop Zhumell

Jims Mobile (JMI) EV-1 Event Horizon 2 Inch Crayford Telescope Focusers

Item# JSMM046
 
5.0

(1 Rating)

Customer Q & A
1. Model Type:
Cassegrain
Newtonian
Refractor
2. Motorized:

Price:

$338.50 to $525.00

List Price: $349.00 to $525.00
Free Shipping with Economy Service
or Ships Apr. 25th with FedEx Ground when you buy today

View All Shipping Options

with FedEx Ground when you buy today

View All Shipping Options

Qty
Add To Cart
Details & Dimensions
Guarantee & Returns
  • JMI EV-1 Event Horizon Focuser
  • Available in SCT, Newtonian and Refractor
  • Available with or without motor
  • Two-speed operation
  • Lifts up to 8 pounds
  • Position Indicator Dial
  • Pusher Bearings give more lifting power
  • Motorized models include hand control unit

Description

The JMI Event Horizon EV-1 is a 2" black-anodized aluminum focuser with rubber grip knobs and two-speed operation.  The focuser lifts up to 8 pounds.  Dual-speed manual controls are over 15 times finer (small outer knob) and 1 1/2 times finer (large inner knob) than most rack-and-pinion focusers.

 

The Newtonian version mounts on a range of surfaces from a 7.25" diameter, or larger, tube to a flat surface.

 

The Cassegrain version is designed for use on 6" to 16" Cassegrain telescopes (SCT and Mak-Cas) with standard output threads.  It includes an SCT threaded output adapter to allow use of standard SCT equipment on the output side of the focuser.  The focuser gives 1/2" of travel and is designed for fine focus after a rough adjustment with the normal telescope focusing knob.

 

The Refractor version mounts in many refractors having one of two different inside diameters of approximately 3.5" and 3.75".  The following is a partial list of refractors that should accept the focuser:

 

  • Celestron C4-R, CG-R, C6-RGT, Firstscope 102, Orion AstroView 100EQ / 120ST EQ, SkyView Pro 120, Synta/Sky-Watcher 100ED, 120ED, 120AR, 150AR, 102AR, P80ED-APO, P100 ED-APO, Vixen ED100Sf

 

All of the Motorized models include a hand control unit.  Note:  Although the Cassegrain Motorized model can be plugged into the telescope's base allowing control from the Meade hand unit, you will have better control with the JMI hand unit.  Our hand unit includes an electronic brake (not included in Meade systems), which stops the motor as soon as you quit pressing the keys, and linear voltage control for superior speed control.  Also, some older LX200 telescopes do not have enough power to properly run the motor on the low setting.

 

More features of the JMI Event Horizon EV-1 Focusers:

 

  • Brass Ring Compression
  • Heavy 8 lbs lift
  • Micro motor as an option
  • Rotating Focuser
  • Zero Image Shift
  • Mega Thrumscrew for compression ring
  • Fine focus and course focus
  • Dial Indicator
  • Pusher Bearings for more lifting power

Shipping Restrictions:
Only ships in contiguous USA.

Dimensions & Specifications

Brand

Jims Mobile (JMI)

Options

Model Type:

Motorized: No Motor, With Motor

Jims Mobile (JMI) EV-1 Event Horizon 2 Inch Crayford Telescope Focusers
Zhumell SCT Dual Speed Telescope Focuser
$117.01
Zhumell SCT Dual Speed Telescope Focuser
Jims Mobile (JMI) MOTOFOCUS for Celestron 5/6/8 Inch SE Telescopes
$179.00
Jims Mobile (JMI) MOTOFOCUS for Celestron 5/6/8 Inch SE Telescopes
Starlight Instruments Feather Touch Micro Focuser for Celestron 8 Inch CPC/SE/EDG HD
$259.00
Starlight Instruments Feather Touch Micro Focuser for Celestron 8 Inch CPC/SE/EDG HD
Starlight Instruments Feather Touch Micro Focuser for Celestron 11 Inch CPC/EDG HD
$259.00
Starlight Instruments Feather Touch Micro Focuser for Celestron 11 Inch CPC/EDG HD
Starlight Instruments Feather Touch Micro Focuser for Meade 8 Inch LX200
$249.00
Starlight Instruments Feather Touch Micro Focuser for Meade 8 Inch LX200

Customer Reviews

REVIEW SNAPSHOT®

by PowerReviews
Jims Mobile (JMI) EV-1 Event Horizon 2 Inch Crayford Telescope Focusers
 
5.0

(based on 1 review)

Ratings Distribution

  • 5 Stars

     

    (1)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

Reviewed by 1 customer

Displaying review 1

Back to top

 
5.0

Excellent Focuser

By WES

from Nashvillle, TN

About Me Casual/ Recreational

Verified Buyer

Pros

  • Easy To Use
  • Strong Construction

Cons

    Best Uses

    • Astronomy

    Comments about Jims Mobile (JMI) EV-1 Event Horizon 2 Inch Crayford Telescope Focusers:

    This focuser was very easy to install and use. I just screwed it on the back of my Celestron 14" Edge HD and it fit perfectly. The gears are very smooth when turning the fine focus knob. I have some heavy large 2" eyepeices and also use a 90 degree 2" diagonal and it works excellently with them. It helps with the final focusing when using high power eyepieces. It also comes with adapters to use 1 1/4" eyepeices if you wish. Well worth the money. Now if I can just get the moon to go away until early morning and have some clear nights I plan to really enjoy it:-)

    • Was this a gift?:
    • No

    Displaying review 1

    Back to top

    Customer Q & A

    Ask a Question  

    Have a question about this product? Ask a Product Expert! The answer will be emailed to you and then posted here.

    Satisfaction Guaranteed
    1-800-303-5873
    GUEST#   0
    Hayneedle, Inc., Internet Shopping, Omaha, NE
    Telescopes.com is a Hayneedle Inc. store. Copyright 2007 - 2014 , Hayneedle Inc., all rights reserved.