Optolong Filters Planetary Filter Set 2"

Product category: Product brand: Optolong
Optolong Filters Planetary Filter Set 2"

Optolong Filters Planetary Filter Set 2"

  • Optolong Filters Planetary Filter Set 2"
  • Optolong Filters Planetary Filter Set 2"
  • Optolong Filters Planetary Filter Set 2"

Price 335,00 €

Optolong Planetary filters kit including UV/IR Cut, R, G, B, and IR685 filter, 5pcs filters in total.

For photography of planets, these filters are fine to use in combination with monochromatic cameras.

Planetary photography is mainly using filters like IR-, UV filters, etc. The main goal is to capture a specific spectrum, such as rich carbon dioxide. One of the most common filters is the IR-filter/infrared filter. In nature, the longer the wavelength of light, the smaller affected it is by atmospheric seeing.

Thus, when we image the planet, we usually use an IR-filter, which transmits only infrared, or near-infrared light, in order to reduce the negative influence of seeing.

In visible light, photographers use the classical RGB filters.

For Mercury, Venus, Uranus, and Neptune, the IR685 comes first, for Saturn and Jupiter the UV/IR Cut, R, G, B are ideal.

IR685 Introduction

Optolong IR Pass685 filter is designed to block the most visible lights and can be used in IR-LRGB imaging to produce a sharper luminance image for the best planetary contrast as atmospheric seeing and distortion is much reduced at longer IR wavelengths. The advantage of the IR685 filter is to reduce the effects of atmospheric jitter.

The sensor of CCD or CMOS cameras i capable of detecting light in the 350nm -1100nm range including infrared wavelengths. Optolong IR685 cuts off the visible part of the spectrum and allows near infrared light to pass so that cause the most sensitive to bad seeing is rejected. It will highly improves images on visibility, contrast and details of planets and the moon. Besides, IR685 is usually used as a key factor of protfolio IRRGB.

Imaging Target:

IR685 is for imaging of bright planets, stars, and comet, like Uranus, Neptune, Jupiter, Saturn, Mars, Moon, et.

Estimated delivery time 3-18 days

IR685 characteristic:

  • Tave: T>95%
  • Transmission area: 700-1100nm
  • Blocking are: 300-600nm
  • Blocking depth: bloked>99%
  • Surface quality: 60/40(Refer to MIL-O-13830)
  • Surface accuracy: λ/4
  • Parallelism: 30'

RGB, parfocal: 1:1:1

  • Creat images in their true original colors showing a wealth of natural detail;
  • Steep bandpass filters to eliminate UV and IR interference;
  • UV/IR Cut, Red, Green, and Blue filters to reproduce the star's color;
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Terms and conditions

These terms and conditions are valid from November 7th, 2020.

Contact information

Astro Art Finland
Sinirinnankatu 18
FI-50190 Mikkeli

Telephone: +358442778923
Email: info@astroart-store.com
VAT Number: FI32234856

Products are sold for private customers over 18 years of age. Prices include VAT. The prices are subject to change.


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You can use the following information to contact our customer service:

Astro Art Finland
Sinirinnankatu 18
FI-50190 Mikkeli

Telephone: +358442778923
Email: info@astroart-store.com
VAT Number: FI32234856

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Our most common delivery times to Finland vary depending on the product and delivery method in question. Exceptions to delivery times are stated. We will notify you about the possible delays right after your order.

We are not responsible for delays caused by force majeure or indirect losses caused by delays. The online store will inform about exceptional delivery times on the website.


All of our products have at least a 1-year warranty by the manufacturer. Warranty-related issues can be dealt either directly with the manufacturer or with Astro Art Store. 

Warranty does not apply to faults that have been caused by:

a) incorrect maintenance, lack of maintenance, or lack of calibration

b) software, parts, or equipment that have not been delivered by Astro Art Store

c) unauthorized modifications or misuse of the product

Return conditions

You have the right to cancel this agreement within 14 days without declaring the reason. The deadline for canceling this agreement ends 14 days after you have received the last shipment of your order. If the product is downloaded, the deadline for canceling this agreement is 14 days after you have downloaded the product.

To use your right to cancel, you need to send us an unambiguous notification of your decision (for example by phone or by email). You can also use our printable return form, but it is not required. To comply with the 14-day deadline you need to send the notification before the deadline.

Use the following contact information to send the notification:

Astro Art Finland
Sinirinnankatu 18
FI-50190 Mikkeli

Telephone: +358442778923
Email: info@astroart-store.com
VAT Number: FI32234856

Effects of canceling your order

If you decide to cancel this agreement, we will return your payment in full, including the shipping costs (only the amount of the cheapest available shipping method). The payment will be returned without a delay, and within 14 days after you have received the cancellation confirmation.

Return fees are on the responsibility of the customer. The items must be returned to the address of Astro Art Finland with the same method as they have been delivered to the customer. 

We will return the payment by using the same payment method as the original payment, unless both parties agree otherwise. The payment is returned in a way that the you will not get any extra fees.

You must send the items back without a delay and within 7 days of receiving the cancellation confirmation. The deadline has been complied with, if you send the items back before the 7-day deadline.

You are only responsible for such decrease in value of the items that is not caused by handling that necessary to test for operation, features, or functionality of the items.

Unredeemed package

Failure to redeem your delivery is not the same as returning or canceling your order. We will charge a fee for unredeemed orders that have not been canceled according to return conditions.

Problematic situations

If the item has been lost or damaged during delivery or it does not correspond to your order, you need to use our contact information to inform us within 14 days by mail, email or by phone. The contact information can be found in "Return conditions". If the package has clearly been damaged during shipping, you need to inform the delivery company immediately.