Anti-Halo PRO Dual-Band 2″ Ha+OIII filter

$549.00 $499.00

SKU: AHP-HO-2 Category:

Anti-Halo PRO Dual-Band 2″ Ha+OIII filter

Frame thickness: body 5mm+ thread 2.5mm, a total of 7.5mm

Filter glass thickness: 1.85mm

Ha CWL: 656.3nm      Band Width: 3.7±0.5nm

OIII CWL: 500.7nm     Band Width: 3.2±0.5nm

Transmittance: >=85%

Blocking depth: OD5 (200-1100nm)


In recent years, not only the single narrowband filters are chasing narrower band width, but also the dual band filters. From 7nm to 3nm, manufacturing process improved so fast!

But one thing is missing, halo control! The halo around stars is like a nightmare when you shoot some famous deepsky object!

Why only chasing super narrow bandwidth, but not deal with the halos?

The reason is, halo control is hardest part in manufacturing.

Most people get used of it!

Until now!


Vega testing of halo control

Luke use his 8″ F4 Newtonian and Canon 700D to test Anti-Halo Pro dual-band filter, the target is Vega (Zero magnitude star), exposure 120sec. We can see there is no halo around Vega, the off axis big halo is the reflection of the lens in coma corrector.


Users Work:


NGC7822, Luke Newbould, Esprit120APO+Anti-Halo Pro Ha+OIII filter + Poseidon-C Pro

NGC7000, Luke Newbould, Redcat 51APO+Anti-Halo Pro Ha+OIII filter + Canon 700D

Software & Manual

Before the first usage of this product read Manuals and install correct Drivers and Softwares.

Warranty & Shipping Policy

Payment method

We provide Paypal and Paypal checkout on our website.

Shipping and Delivery

Shipping Fee:

  • Amount >= 299USD : free express shipping
  • Amount < 299USD : 29.9USD for express shipping

Shipping Services:

  • We usually use DHL, UPS, FedEx, TNT for shipping.
  • Make sure your email is correct, we maybe will contact with you through emails in case of emergency.

If customer wants to designate a shipping company or has special requirement, please send an email to and tell us your detailed requirement.

Shipping time:

  • Usually 7-14 days.
  • Tracking number will be updated in 3 days after paid.

For orders from areas where transportation is not easy, such as islands, town in mountainous regions, delivery time will be slightly longer.

Please send an email to immediately, if the following occurs:

  • Shipping delayed or has some abnormal information.
  • The packing is badly damaged on arrival, take pictures and do not sign.


  • The price on our website without tax.
  • Please note that buyers are liable to charge tax involved, such as Import tax, VAT, customs handling fee, etc.
  • Those fees possibly will be collected at the time of delivery by courier.

For best experiences, we recommend customers to purchase our products form local dealers.

After-sales Service

Warranty Policy

2-year free warranty (time start from delivered) for Player One products. If the product has any issue, please send the image or video and description to for further check to confirm.

  • Purchase from Player One official online store, we will provide warranty service directly.
  • Purchase form dealer, we will provide warranty service through dealer.

Repair in warranty, customer only pay the shipping fee of shipping back the product to us or dealer, and no other extra fees.

Replacement Policy

You can request our Replacement Service:
√ Within 30 calendar days of receiving the product if the product does not match the original description of the product in one or more significant respects.
√ Within 30 calendar days of receiving the product if the product suffers performance failure.

Please contact our After-Sales team by email to within 30 calendar days of receiving the products. Player One shall be responsible for the two-way replacement freight for any products sent in for replacement due to performance faults.

Warranty and Replacement Policy Exceptions:

× Warranty service time or replacement service time expired.
× Legal proof-of-purchase, receipts, or invoices are not provided, or are reasonably believed to have been forged or tampered with.
× A product sent to Player One for replacement does not include all original accessories, attachments and packaging, or contains items damaged by user error.
× A product is found to have no defects after all appropriate tests are conducted by Player One.
× Any fault or damage of the product is caused by unauthorized use or modification of the product, including exposure to moisture, entry of foreign bodies (water, oil, sand, etc.) or improper installation or operation.
× Product labels or serial numbers show signs of tampering or alteration.
× Damage is caused by uncontrollable external factors, including falling down, fires, floods, or lightning strikes, etc.
× Proof of damage during transit issued by the carrier cannot be provided.
× Other circumstances stated in this policy.

In those situations, repair the product might have extra cost, we will estimate cost and email customer to know the information before send product back.


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