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Hot Sale Bahtinov Focusing Mask 145-220mm Caliber Fixed Diameter 150-200mm Black
Place the Bahtinov Focus-Mask over the end of your telescope, then locate a bright star near your target, take a 3-5 second picture and view the diffraction spikes. Change your focus, take another picture and again, view your diffraction spikes. Is the center spike moving further from center? Then change the direction your focusing and try another picture. Watch the direction the spikes are moving and when the center spike passes the middle of the other two spikes, change direction and fine tune your tuning knobs until the center spike is in the middle. Your now in perfect focus.
- The Bahtinov Mask Made of aluminum alloy, not plastic. And it has whole anodizing aluminium process
- Masks now feature 3 holes which can be attached with 3 screws to prevent the mask from falling all the way to the ground
- Perfect focusing for your CCD, DSLR or Webcam in seconds
- Light weight so you wont upset the balance on your scope
- Suitable for telescopes front end diameter 150mm to 200mm, Universal adaptation, 3 bolts with plastic cover allow the mask to be simply attached to any telescope
- Aluminium alloy material thickness: 1 mm
- Weight: 79g
- Color: Black
- 1 X Bahtinov Mask
- 3 X Screw Kit
1. We accept payment via PAYPAL ONLY. We only ship to confirmed PAYPAL addresses. Please make sure payment address in PayPal is correct.2. Payment must be received within 7 business days of auction closing.3. All major credit cards are accepted through our secure payment processor PayPal.
- Processing time:as the item description.
- We will prepare the shipment in 48-72 hours after we receive the payment and after the eCheck is cleared.
- We only ship to the confirmed address provided by PayPal. Please make sure the Ship-To address you type during checkout is correct. We are not responsible for any wrong or undeliverable addresses.
- We strive our best to provide you the most reliable, affordable way of shipping service. But sometimes international delivery is highly depended on the Courier Company and local customs/duties. If you do not receive your item on time, please contact us immediately for further assistance. Thank you for your understanding.
- Custom fee (including VAT&GST):
- Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility. Please check with your country's customs office before bidding. We will try our best to help customer do customs clearance.
- B:Chinese Domestic Dispatch
CountryDelivery TimeWorking Days(not including holiday)5-78-1112-1415-1920-22>22Working Days+Saturday+Sunday5-910-1516-2021-2526-30>31United KingdomRate(item arrived)9.9%63.2%19.1%3.4%4.4%RefundAustraliaRate(item arrived)21.4%50%14.3%7.2%7.1%RefundFranceRate(item arrived)10.5%28.6%43.8%10.1%7%RefundGermanyRate(item arrived)11.1%22.2%30.3%20.9%15.5%RefundCanadaRate(item arrived)0%47.1%31.4%17.6%3.9%RefundSpainRate(item arrived)3.5%25%47.9%12.9%10.7%Refund
- You can pay extra shipping cost to get express delivery, such as EMS, DHL or UPS. It just takes 3-7 business days to receive order, please contact us if necessary.
- All items in our shop are covered by one year warranty.
- We stand behind every product we sell. If you're not pleased with your purchase, we'll be happy to make an exchange or refund the product price less S&H within 30 days of your purchase via parcel post.
- Please contact us before you return the item, we will offer you the right return address
- For any exchange or refund, we need the product must be in its original receipt, including the box, packaging and all the accessories.
- Buyers are responsible for the returning shipping cost. Shipping and handling charges are not refundable.
- Refund and replacement: Once the carrier has received your item, Please allow up to 10 business days for returns to be processed.
- If you cannot return it, you can sell it, too!! Been holding on to something past its return date? You can sell it online on eBay! Find its exact match on eBay and click the "Sell an item" button. It's easy.
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Place the Bahtinov Focus-Mask over the end of your telescope, then locate a bright star near your target, take a 3-5 second picture and view the diffraction spikes. Change your focus, take another picture and again, view your diffraction spikes. Is the center spike moving further from center? Then change the direction your focusing and try another picture. Watch the direction the spikes are moving and when the center spike passes the middle of the other two spikes, change direction and fine tune your tuning knobs until the center spike is in the middle. Your now in perfect focus.On Aug-31-18 at 20:51:11 PDT, seller added the following information:
Filed under: Eyepieces & Accessories