What item is right for you?
Ask our Experts! 800.606.6969 Live Chat

JMI Telescopes 2" Enhanced Extension Tube (3.13")

B&H # JMADPT2X31E MFR # ADPT2X3.1E
Usually ships in 7-14 business days

Availability Details

Close
This is a Special order item. Est. arrival at B&H is 7-14 business days (subject to availability). Your order will be charged at time of shipment.
PayPal Orders
PayPal orders will be charged when the order is placed.
International Orders
International orders will be charged when the order is placed.

Shipping Charges Apply
You Pay: $77.95
Product Highlights
  • 2" Push Barrel Front
  • 2" Inner Diameter Barrel Rear
  • Adds 3.13" (80mm) Path Length
  • Made in the USA

The JMI Telescopes 2" Enhanced Extension Tube adds 3.13" (~80mm) of optical path length to your telescope combination, and is useful for retaining the optical path length when replacing a star diagonal or a prism with a shorter accessory, such as a photo adapter.  It may also come in handy when converting to a JMI focuser, which are so low profile that they often move the focus point too far inward.  JMI Extension Tubes also reduce minimum focusing distances, allowing closer observations of subjects when focus is moved out by eyepiece projection, use of a Barlow lens, etc.

As the "Enhanced" version of a JMI Extension Tube, this uses a brass compression ring to affix 2" accessories, adding some security and preventing the marring of components which can occur with traditional set screw fixtures.  It also accepts 48mm screw-in filters (for 2" eyepieces) upon the bottom of the barrel.

Made in the USA.

Filters

Celestron -  Oxygen III (OIII) Narrowband 48mm Filter (Fits 2" Eyepieces)
  • Price: $74.69
  • Instant Savings: -$17.00
  • Offer ends JAN 31 '15
  • You Pay: $57.69
 
See any errors on this page? Let us know.

Close

Close

Close