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Accessories - Lumicon Low-Profile Focuser For 3 Inch Newtonian Base - LH2000

Lumicon Low-Profile Focuser for 3 Inch Newtonian Base - LH2000

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Regular price
$261.00 You save 12%
Unit price
Shipping calculated at checkout.


Estimated Arrival: Between Nov 29 and Dec 05. *ETA to USA Only

Shipping & Returns: Satisfaction guaranteed 30 day return policy.


Lumicon Low-Profile Focuser for 3 Inch Newtonian Base is a high-precision, pin-and-groove type helical 1.25″ focuser. The low-profile design quickly and easily converts your standard Newtonian with a 3″ base to a camera-ready telescope.

For visual use, the smooth focusing brings out the very best in your telescope’s optics. Accessories that take up back-focus, such Lumicon’s popular 1.25″ Multiple Filter Selector, can be used with ease and convenience. The U-groove base aligns and sits flush on any telescope tube with a radius of 3.5″ or larger.  The draw-tube does not rotate.

Note: Visual use of the Low Profile Focuser requires either the Lumicon 1.25″ Multiple Filter Selector or a 1.25″ extension tube.


  • Low-Profile Focuser for 3″ Newtonian Base
  • Mounting Hardware


Focuser minimum height above tube*

1.75″ (for 3.5″ radius tube), 2″ (for flat-base mounting)

Turns ratio

2 per inch




< 0.0005″

Image shift


Reverse Action





3” square

Hole pattern

Square; 2.25” center to center

Min/max focuser hole diameter


Operating range

to 20°F/- 7° C

Maximum recommended load

3 lbs

Mounting hardware

8-32, included

*Precise minimum depends on radius of tube.


We know that once you've placed your order, you are anxious to receive it! We make every effort to get your order shipped out to you as quickly as possible.

As soon as you place your order, you will receive an order confirmation e-mail. This means that we have received your order in our system and pre-authorized your credit card for the purchase. We will process the charges to your credit card and your order will ship within five business days from the date of your order. We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.  If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at

Standard shipping time in the US is between 3-5 business days, though it can vary slightly depending on the destination. We typically For updates on your shipment you can enter your tracking number here.

We distribute nationwide via UPS and Fedex. Unfortunately, at this time we are not able to provide expedited or international shipping.