2PCS 13.5mm Glass Achromatic Doublet Convex Lens Focal 33mm for Eyepieces Lenses For Sale
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
2PCS 13.5mm Glass Achromatic Doublet Convex Lens Focal 33mm for Eyepieces Lenses:
$12.34
DIY astronomical telescope eyepiece lens coating film
Specification
C oa ted with Film Center thickness 6.4, Edge thickness 4.6 It can be used on DIY Astronomic Telescope eyepiece
Combined image quality: 1/4-1/8
Diameter tolerance: +0/-0.12 mm
Center thickness tolerance: ±0.2mm
Focal length tolerance: ±0.1%
Finish: 60/40
Eccentricity: 1\'
Package includes: 1pc Achromatic Doublet Convex Lens.
Return or Exchange
- If you are not satisfied when you receive your item, please return it within 14 days for a replacement or money back.
- Please contact me before you return it.
- If item is defective in 3 months, We will send you a replacement without extra charger, or offer refund after we receive the defective item.
- If item is defective after 3 months, you can still send it back to us.
- We will send you a new one after receiving the defective item. But you have to pay the extra shipping fee.
Policies
- We are not responsible for any custom duty or import tax.
- We will leave POSITIVE FEEDBACK after receiving the payment.Please contact us if you are not satisfied with the item after receive it.
- All messages will be answered within 1 business day. If you do not receive our reply, please kindly re-sent your message and we will reply to you as soon as possible.
- Serious Buyer Only! Please place bid only if you agree with all the terms.
- If you have any problems or concerns whatever with your order or products,please message us and give us a chance to assist you before you leave any feedback.
- We believe we can produce a positive outcome to any situation and will work hard to earn your praise.
Shipping
- We Ship to Worldwide. Please contact with us if didn\'t find your country.
- Items will be shipped within 1-10 business days on payment received.
- Delivery time depends on destination and other factors, it may takes up to 20 business days.