114mm Primary Mirrors Focal 900mm DIY Newtonian Astronomical Telescope Lens 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.
114mm Primary Mirrors Focal 900mm DIY Newtonian Astronomical Telescope Lens:
$56.99
SphericalMirrorNewtonian reflection astronomical telescope Dia.114
Specification
Caliber: 114mm,
Focal length: 900mm.
The thickness of the main mirror about 15mm,
Spherical mirror, aluminum plating and protective film,
Accuracy of the mirror: 1/6 wave
Aluminized plus protective film, a layer of SIO (silcon oxide) .
The mirror axis of the secondary mirror (short side diameter) Length 25mm.
and long side diameter 35mm.
Delivery details
---------------------------------------------------------------------
1. We Ship to Worldwide. Please contact with us if didn\'t find your country.
2. Items will be shipped within 1-10 business days on payment received.
3. Delivery time depends on destination and other factors, it may takes up to 20 business days.
Policy:
---------------------------------------------------------------------
1. We are not responsible for any custom duty or import tax.
2. We will leave positive feedback after receiving the payment.
Please contact us if you are not satisfied with the item after receive it.
3. 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.
4. Serious Buyer Only! Please place bid only if you agree with all the terms.
5. 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.
