$1372.7 Buy It Now or Best Offer
free,30-Day Returns
Seller Store agenaastro
(19349) 99.5%,
Location: Cerritos, California
Ships to: US,
Item: 146174173320
Restocking Fee:No
Return shipping will be paid by:Buyer
All returns accepted:Returns Accepted
Item must be returned within:30 Days
Refund will be given as:Money Back
Manufacturer:DayStar Filters
MPN:DSZCH
DayStar Filters:DayStar Filters
Type:Filter
Description Ordering Info USA Shipping International Orders Returns Our eBay Store 1. PRODUCT DESCRIPTION A simple, all-in-one eyepiece filter to view the Sun in the Calcium H Line. Just insert the Quark into your 1.25″ diagonal, power it up, insert a 1.25″ eyepiece, and enjoy spectacular views of the Sun. Suitable for use with f/7 – f/30 refractor telescopes. No energy rejection filter required up to 80mm aperture. Diagonal-mounted UV/IR-cut filter recommended for 80mm – 150mm refractors (sold separately). Use with larger telescopes not recommended. Optional adapters available to use the Quark with 2″ eyepieces or to attach T or C mount cameras and accessories for solar imaging. 1. What is the DayStar Quark “Eyepiece”? The DayStar “Original-Style” Quark Eyepiece Filter is a special type of combination filter/eyepiece holder that allows you to view the Sun in Sodium-H light with most refractor telescopes. Although DayStar and some other sites refer to this item as an eyepiece, and while it may look like one externally, note that it is not an actual eyepiece. The Original Quark for Sodium is meant for use on refractors of f/7 or longer focal ratio (see additional details in section 4 below). Just insert the Quark into your diagonal, add a 1.25″ eyepiece, warm it up, and view! This device essentially converts your normal refractor telescope into a narrowband solar telescope. The new, all-in-one design of the Quark marries high quality components of adapters, snouts (nosepiece barrels), and Daystar Calcium filter into one simple assembly. Through design efficiency and optimization, users can now enjoy the known high quality optics of DayStar at an affordable price. Baffles have been added to increase contrast and AR coatings are optimized for the 397nm wavelength. 2. Why Calcium H-Line? Many astronomers forget that the Calcium H-line and K-line yield virtually identical views of the Sun. Solar researchers who only image the Sun with CCD cameras often choose the K-Line for purely research purposes. Sadly, with Calcium K-line filters, many older astronomers are unable to see the lower wavelength visually and miss out on all the fun. DayStar offers higher wavelength Calcium H-line filters for visual observers so that most clients can enjoy Calcium line views. The exact bandpass of the Quark Calcium H-Line you receive will be around 5 Å. DayStar does not mark individual units with their specific FWHM bandpass, and we cannot test and cherry-pick specific Quarks for customers. 3. How do I use a DayStar Quark? As mentioned above, just insert the Quark into your diagonal on compatible refractor telescopes, insert your eyepiece in the Quark, warm it up, and enjoy high-powered views of the Sun. The fully optimized design of the Quark eliminates the need for any additional adapters. It is all combined in one lightweight eyepiece-sized device. The Quark requires a power source for operation and it needs to be plugged in and warmed up for about 10 minutes before you can use it. A wall-mounted AC adapter is included for this. They have even reduced power consumption, so the Quark can now operate all day off a small, palm-sized optional battery pack. Note that retuning the Quark requires a few more minutes for the unit to stabilize before you get the best views of the Sun again. 4. What telescopes can I use the DayStar Quark with? For use on F/7 or longer focal ratio refractors, the user needn’t worry about configurations. Just insert in your diagonal, add an eyepiece and view. Short focal ratio refractors will need a 2x or 2.5x Tele Vue Powermate to get the best performance. For refractors up to 80mm in aperture, the thermal load is low enough on the optical system, and you do not need any additional rear mounted Energy Rejection Filter (ERF). For larger refractors up to 150mm, you can safely use a suitable rear-mounted UV/IR cut filter (not included), available from several different maufacturers. The UV/IR cut filter functions as the ERF and it should be mounted in front of your diagonal. Important – make sure you use a UV-IR Cut filter that passes the Calcium H-line. Some commercially available and popular UV-IR Cut (such as the Baader filter) block the Calcium H-Line and cannot be used. For refractors larger than 150mm, DayStar recommends that the telescope aperture be stopped down to no more than 150mm. Note that unlike other Quark models, this Calcium H-Line model is NOT compatible with red or yellow glass ERFs. The Calcium Quark also can NOT be used with front mount ERF or other telescope designs. 5. Additional Specifications / Features Calcium H-Line (3968.5Å); Approx. 5Å FWHM 1.25″ nosepiece with safety indent slot slides directly into diagonal or focuser Standard 1.25 eyepiece drawtube output with optional 2″ eyepiece holder available separately Brass compression ring to protect eyepiece Uses USB power, 5v 1.5amp Includes 90-240V AC wall adapter with international plug adapters 5 year US warranty Optional 8-hour battery pack available Integrated 25mm blocking filter with 21mm clear filter aperture Best performance with f/7 to f/30 refractors at full aperture (up to 150mm) Ships in convenient twist-case for safe, dust-free storage Full disk viewing possible on refractors up to ~1800mm focal length Optional T-mount or C-mount adapters available separately for using the Quark with imaging or video cameras or other accessories Uniformity: SE (Standard Edition) United States Note: Occasionally, the product you receive might have a slightly different cosmetic appearance or labeling than what is shown. This can often change from batch to batch according to the whims of the manufacturer. However, you will always receive a brand new, original product as described above. Description copyright: Agena AstroProducts – Reproduction without permission prohibited. Back to Top 2. ORDERING INFORMATION A. Payment: You can pay via any payment method that eBay accepts. B. Shipping Method: United States Postal Service (USPS) or United Parcel Service (UPS) at your choice and expense (our choice if the item has free shipping option). eBay orders for items over $1,500 can only ship via UPS. C. Order Processing Time: Orders received by 12 noon Mon – Fri US Pacific Time generally ship on the same business day. Orders received after 12 noon PT or on weekends/holidays will ship by the next business day. D. Checkout: Please pay for the item(s) within 3 days from your account on eBay or by using the link in the email you receive from eBay. E. Shipping Discount: We offer combined shipping if you order multiple quantities/items and if items can be combined. eBay will automatically show you the correct combined/discounted shipping costs when you check-out. F. Combining Purchases: You can combine shipping for items purchased from us on eBay within 3 days. Buy the items individually and check out together for all items. eBay will combine the shipping weights and show you the discounted shipping cost. You must check out for all items together via eBay for this. We cannot combine shipping costs if you check out individually for your purchases. G. Sales Tax/VAT: Sales tax or VAT may be charged and collected by eBay as required by law based on your ship-to address and local tax/VAT rates. Please check with eBay. Back to Top 3. US SHIPPING A. Delivery Time: USPS First Class shipments will generally take 3-5 business days to arrive after we ship it. Priority Mail shipments will generally take 2-3 business days. However, these delivery times are NOT guaranteed by the USPS. Delays of up to 2 (or sometimes even 3) weeks can occur in about 5% of the shipments due to Covid, operational, or other issues. UPS shipments will generally take between 1 and 6 business days to be delivered depending on the method you select. USPS and UPS do NOT offer any refunds for shipping/delivery delays for ANY reason (except for UPS Next Day Air service). Delays are out of our control once your order ships. B. Tracking/Delivery Confirmation:eBay will update you once your order ships. You can see the order status or tracking information/link from your eBay account at any time. C. USPS Tracking Limitations: Please note that is common for USPS tracking to show “Shipping Label Created, USPS Awaiting Item” or “Shipment Received, Package Acceptance Pending” even several days after your order ships. This does not mean that there is a problem with your order or that we have not handed over your package to USPS yet. This simply means that your package is en route without an outbound scan and tracking will not be updated until the package reaches a distribution center at your end several days later. Back to Top 4. INTERNATIONAL ORDERING / SHIPPING At this time, we do not ship this item outside the US for eBay sales. Sorry. Back to Top 5. RETURN/EXCHANGE POLICY A. US Orders: Returns must be shipped back within 30 days. All returned items must be in brand new, resalable condition with original manufacturer’s packaging. A minimum restocking fee of 10% will be deducted if there is any evidence of use or wear, dirt, scratches, missing packaging/parts, etc. We may levy a larger restocking fee if the condition warrants it, or even refuse returns entirely if returned in heavily used/abused condition. Shipping fees are non-refundable (for items with free or discounted fixed shipping, the actual outbound S&H cost we incurred will be deducted) and you are responsible for all return shipping costs. Please contact us first before returning an item. B. International Orders: No returns/exchanges accepted unless the item we shipped is defective. Please research the product and ask us any questions BEFORE you purchase to make sure you are buying the correct item for your needs. Back to Top Click any image below to view hundreds of products in our eBay Store…
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