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Accessories - Lumicon 2 Inch SCT Rear Cell Comet Filter

Lumicon 2 Inch SCT Rear Cell Comet Filter

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Regular price
$275.00 You save 12%
Unit price
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Estimated Arrival: Between Oct 05 and Oct 11. *ETA to USA Only

Shipping & Returns: Satisfaction guaranteed 30 day return policy.


Lumicon 2 Inch SCT Rear Cell Comet Filter is a narrow band-pass filter (25nm), which isolates the 501nm OIII line and both C2 lines at 511nm and 514nm. The filter cell threads onto a Schmidt-Cassegrain Telescope rear-cell, and presents male SCT threads for accessory attachment. The filter cell allows ease of eyepiece changes without threading/unthreading the filter, and is also easier to change-out than the standard 2″ filter cell with gloves on, for cold-weather observing.

The high contrast of the filter reveals the delicate ionized tail of gaseous comets for optimal viewing. The Comet Filter also helps better distinguish gaseous comets from dusty comets, which normally show little contrast gain.

Lumicon filters remain the world’s best and strictest quality control standards are employed throughout the production process. Each Lumicon Comet Filter is individually inspected and scanned with the percentage of light transmittance of the primary emission lines at 501, 511 & 514nm.


  • SCT Rear Cell Comet Filter


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.