| Quick Overview |
| Product Name: |
GSO 2” 2x ED Barlow Lens for Telescope |
| Item Condition: |
Brand New
|
| Item Ships in US Via: |
USPS Priority Mail with delivery confirmation |
1. Detailed Product Description
GSO's 2" 2x ED Barlow is perhaps the best barlow of its kind on the market today, and one of our perennial best-sellers. This barlow uses two-element, fully-multicoated lenses made from special ED (Extra-Low Dispersion) glass for excellent color correction and sharpness. The lens edges are blackened to maximize image contrast. The clear aperture is 37mm so you can use even 2" wide-angle eyepieces without vignetting.
The body is precision CNC-machined from aluminum and sports a handsome finish that you would usually find on much higher priced items. The barlow comes with a 2"-1.25" adapter so it can be used with 1.25" or 2" eyepieces. The barlow tube and the 1.25" adapter both feature brass compression rings so the set-screw will not scratch your eyepiece barrels.
A really nice feature of this GSO barlow is that the barlow element is housed in a separate metal cell at the bottom that can be unscrewed from the upper tube (see photos). You can then screw the barlow cell directly into 2" eyepieces with a standard 2" filter thread to increase the magnification of that particular eyepiece while still maintaining a low profile. When screwed into an eyepiece, the barlow will yield approximately 1.5x of magnification. So, for example, a 30mm eyepiece can be used with the barlow element screwed on as a 20mm eyepiece, or with the complete barlow as a 15mm eyepiece. That's like having three eyepieces in one! You can also use the tube by itself without the barlow element as a 27mm (1.1") extension tube for 2" eyepieces and accessories.
Note that the use of any optical element like barlows and focal reducers changes the focus point of your telescope, requiring additional in-focus or out-focus travel. This GSO 2" 2x ED barlow will require at least 19mm (0.75") or more of additional in-focus travel. The exact amount of focus travel required will depend on the optics and mechanics of your specific set-up (telescope, diagonal (if used), barlow, and eyepiece). Hence, be aware that you may not be able to reach focus with all eyepieces or in all configurations with a given barlow.
Specifications:
- Barrel size = 2 inch (50.8mm)
- Magnification factor = 2x
- Coatings: Fully multicoated, Blackened lens edges
- Weight = 13.7oz (388gm)
- Total height = 4.57" (116mm)
- End caps = 2
- Other: Includes 2" to 1.25" conversion adapter with brass compression ring
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.
Text and photos - Copyright Agena AstroProducts. Reproduction without permission prohibited.
2.1 Payment and Shipping Methods
- We only accept PayPal and major credit cards (Visa, MC, American Express, Discover) through PayPal.
- All orders are shipped via US Postal Service (USPS) only.
2.2 Checkout
- Please pay within 5 calendar days after you commit to buy. After 7 days, our software will automatically start the eBay cancelation process if payment is not received.
2.3 Combining Multiple Items
- You can combine shipping for items purchased from our listings on eBay within 3 days. To get combined shipping, first purchase your items, and then check out and pay for all items together via eBay in one transaction. 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 after you check out individually for your purchases. Please check the eBay FAQ/Help sections if you are not sure how to check out and pay for several items together.
2.4 Sales Tax
- 9.75% sales tax will be added to all orders shipped to a California address.
3.1 Shipping
- Orders weighing 13 oz. or less can be shipped via USPS First Class or Priority Mail. Orders weighing more than 13 oz. are shipped via USPS Priority Mail.
- Most orders ship on the next business day (excludes weekends and holidays) after payment is received.
- You will receive an automatic shipping notification email as soon as your order ships along with your delivery confirmation (tracking) number.
3.2 Delivery Time
- First Class Mail takes 4-7 business days to arrive after we ship your package. Priority Mail takes 3-5 business days.
- These are typical delivery times and are NOT guaranteed by the US Postal Service. In shipping thousands of orders over 7+ years, our experience is that about 95% of orders arrive within this timeline. However, delays of up to 2-3 weeks can occur sometimes, even for Priority Mail service.
- Please contact us if you have not received your first class package in 3 weeks, or your priority mail package in 2 weeks, and we will work with you to resolve the issue.
3.3 Order Tracking / Delivery Confirmation
- USPS Delivery Confirmation (tracking) is included for all US shipments and this number will be sent to you when your order ships. This serves as proof of mailing and provides very basic tracking information via USPS's website. However, the USPS is not as prompt or detailed as UPS/Fedex, and can take several says to update this information on their site.
- If you are unable to track the package using the information we provide even after 2-3 days, the USPS scanning systems may have missed scanning your package, especially on small boxes. This happens in about 15-20% of the cases, and you may see a message indicating that "the USPS was notified of the shipment, but this does not indicate receipt by the USPS or the actual mailing date." Rest assured that your package has shipped and will arrive in a few days, even though USPS may not be tracking it.
4.1 Shipping Cost, Handling Fees, and Processing Time
- To determine your shipping choices and shipping cost for this item, please go to the "Shipping and Payments" section near the top of this page and select your country from the drop-down list. eBay will calculate your actual USPS shipping costs for this item.
- For all international orders, we charge an additional handling fee equal to 3% of the purchase price of the item(s). This will be added to your order total when you check out.
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Most orders ship on the next business day (excludes weekends and holidays) after payment is received.
- You will receive an automatic shipping notification email as soon as your order ships.
4.2 Shipping Choices, Order Tracking, and Delivery Time
- You will have the following shipping service choices:
(1) USPS First Class International: Delivery takes about 3 weeks after we ship your package. This can often take 4-6 weeks to several countries. There is no tracking for First Class shipments. The USPS provides a customs form number which just shows the date on which the package was prepared and when it was delivered. This is not tracking, as many people incorrectly believe, and even this very basic information is not updated for several days.
(2) USPS Priority Mail International: Delivery takes 1 - 2 weeks after we ship your package. This can sometimes take 3-4 weeks to several countries. The USPS provides some basic tracking information for a few (not all) countries with Priority shipping.
(3) USPS Express Mail International: Delivery usually takes 5-8 business days after we ship your package. You will receive a tracking number with which you can track your shipment from USPS.com. Note: If you use this option, you must send us your phone number when you check-out or else your shipment will be delayed. This is required for international postal forms.
- These are typical delivery times and are NOT guaranteed by the US Postal Service. Delays of several weeks can sometimes occur. The most common reason for delays is slow customs inspection and clearance in your country, and can be very long, even for Express mail packages. In most cases, customs clearance takes 1-3 days, but can sometimes take 7-10 days. We have even seen this take 30 days for an Express Mail shipment once. Upon shipping your order, delivery delays are beyond our control, so please do not leave us negative feedback for this reason.
4.3 Customs and Duties
- You might be subject to import duties and taxes, which are levied once the package reaches your country. Additional charges for customs clearance must be borne by you; we have no control over these charges and cannot predict what they may be. Customs policies vary widely from country to country. You should contact your local customs office for further information.
5.1 14-Day Money Back Guarantee
- If you are not 100% satisfied with your purchase, simply ship the item back in new, unused condition within 14 days of receiving it.
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US customers will be given a full refund of the purchase price of the item. International customers will be given store credit only.
5.2 Return/Exchange Policy
- You must ship the returned items within 14 days of receiving it. No returns can be accepted after this period. Please contact us first before sending any items back.
- All items must be in new (mint), resellable condition and must not show any evidence of use or wear, dirt, or blemishes of any kind. Items must be returned in their original packaging and should include all supplied materials and accessories provided. Please handle the received items very carefully with all original packaging until you are sure you will keep the item.
- If the item shows signs of use or abuse, a restocking fee will be deducted depending on the condition of the returned item.
- You will be responsible for all return shipping costs and for ensuring that the return package reaches us safely. Shipping/insurance costs paid to send the item to you are not refundable.
- We request that you use due care and diligence to be certain that you want the product you are ordering. Ensure that the item you order will fit on or work with your telescope before ordering it. Ask us for any information or help you may need before the sale. Take advantage of the internet and research the product online. This is especially important for selecting eyepieces (especially wide angle ones) that will work well with your telescope, or for diagonals/barlows/focal reducers that require additional focus travel.
5.3 Contacting Us
- Please use the "Ask a Question" link above to contact us. We respond to ALL inquiries by the next business day. If you do not hear from us within 2 days please check your spam/junk folder and contact us via eBay again if necessary.
5.4 Feedback
- PLEASE contact us first in case of any problems. We will do our best to resolve any issues you might have.
- Our software automatically posts feedback every evening for those who have left feedback for us.
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