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DayStar Filters ERF 80mm With 110mm Cap.

DayStar Filters ERF 80mm - For Refractors

Vendor
Daystar
Sale price
$550.00
Regular price
$650.00 You save 15%
Unit price
per 
Shipping calculated at checkout.

Availability:

Estimated Arrival: Between May 25 and May 31. *ETA to USA Only

Shipping & Returns: Satisfaction guaranteed 30 day return policy.

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Daystar Instruments products currently have a 3 week lead time. Thank you for your patience, it will be worth the wait!

DayStar Energy Rejection Filters reduce the heat load on your filter assembly by absorbing or reflecting UV and/or I light and transmitting light in the desired visual spectrum. These filters are sometimes Red or Yellow glass, or dielectric IR and UV, but pass light in the desired visual spectrum.  The ERF can also serve as an aperture mask to accomplish a straight angle of incidence for light entering the filter.

DayStar filter assemblies operate best at f/30 and slower. Creating f/30 configuration can be done easily with the proper ERF and/or barlow. Visit our full list of reflectors or refractors or contact us for your exact model. Higher resolution, larger aperture configurations use a barlow.

Once you place your order, please email us at info@telescopetek.com and specify the telescope this ERF is to be used with, and measure (with a ruler) the outside (largest) diameter of your telescope's dew shield at the very front of the telescope.  ERFs are custom machined on a  one-off basis and so the accuracy of this measurement is very important.  Failing to provide this measurement will cause your order to be put on hold until it is provided.

Shipping

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 info@telescopetek.com.

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.


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