SKY-WATCHER DELUXE MIRROR COATINGS
Most reflectors today usually have a coat of aluminium as the mirror surface
and then an overcoat of silicon monoxide or silicon dioxide to protect it.
Silicon dioxide produces a much more durable coat than silicon monoxide but
requires specialized equipment to apply it and is therefore more expensive.
Protection is needed, because in most reflectors, the mirror is open to the
elements and deterioration of the reflective layer reduces the resolution of
the telescope. ALL Sky-Watcher reflectors are Multi-Coated with Silicon Dioxide
as standard for Optimum Durability and Long Term Performance.
Photo Express & The Photography Shop Delivery Information
FREE Fedex Priority 24 & 48 Delivery to Zone 1 Areas
Carriage Free to England, Wales and parts of Scotland, excluding Highlands and Islands, Isle of Man, Northern Ireland & Isle of Wight
Isle of Wight (Postcodes PO30-41) = £30 Extra
Zone 2 = Highlands & Islands of Scotland = £30 Extra
(Postcodes IV, HS, KA27-28, KW, PA20-80, PH17-26, PH30-50, ZE)
Zone 3 = Northern Ireland, Isle of Man, Scilly Isles = £50 Extra
(Postcode BT, IM, TR21-25)
PLEASE NOTE FEDEX PRIORITY 24 NOT AVAILABLE TO SOME ZONE 1,2,3 & I.O.W ADDRESSES, THUS ALTERNATIVE SERVICE WILL BE USED.