Celestron Echelon 20x70	Celestron Echelon 16x70	Celestron Echelon 10x70	Fujinon Polaris FMT-SX 16x70	Fujinon Polaris FMT-SX 10x70	Celestron SkyMaster 25x70	Celestron SkyMaster 15x70	Celestron SkyMaster Pro 15x70	Celestron SkyMaster Pro 20x80	Bresser Spezial Astro SF 15x70
RRP:	$879		$750
Current Price:	$799 / £776	$770 / £700	$609 / £735	$1049 / £900	$949 / £900	$100 / £100	$70 / £80	$180 / £180	$180 / £180	$260 / £230 / €240
Configuration:	20x70	16x70	10x70	16x70	10x70	25x70	15x70	15x70	20x80	15x70
Exit Pupil:	3.5mm	4.38mm	7mm	4.38mm	7mm	2.8mm	4.66mm	4.66mm	4mm	4.66mm
Body Shape:	Porro Shape	Porro Shape	Porro Shape	Porro Shape	Porro Shape	Porro Shape	Porro Shape	Porro Shape	Porro Shape	Porro Shape
Weight:	65oz	65oz	65oz	67.2oz	76oz	52oz	48oz	60oz	86.4oz	67oz
Length:	10in	10in	10in	1.6in	11.3in	10.2in		10.9in	13in	11.4in
Width:	8.74in	8.74in	8.74in	9.8n	9.8n	8.4in		8.7in	9.5in	8.5in
Eye Relief:	19.5mm	18.6mm	21.5mm	15.5mm	23mm	13mm	18mm	17mm	15.5mm	20mm
Eyecups	Roll up/down	Roll up/down	Roll up/down	Roll up/down	Roll up/down	Roll up/down	Roll up/down	Roll up/down	Roll up/down	Roll up/down
Min Focusing Dist:	99.9ft		82ft	36ft	27ft	75ft	43ft	49.2ft	66.2ft	32.8ft
FOV at 1000yds:	157ft	199ft	278ft	210ft	278ft	141ft	231ft	231ft	168ft	231ft
Chassis	Aluminium	Aluminium	Aluminium	Aluminium	Aluminium	Polycarbonate?	Polycarbonate?	Polycarbonate?	Polycarbonate & aluminum	Aluminium
ED Glass	No	No	No	No	No	No	No	No	No	No
Phase Correction	Not Needed	Not Needed	Not Needed	Not Needed	Not Needed	Not Needed	Not Needed	Not Needed	Not Needed	Not Needed
Prism Type	Porro	Porro	Porro	Porro	Porro	Porro	Porro	Porro	Porro	Porro
Prism Glass	BaK-4	BaK-4	BaK-4	BaK-4	BaK-4	BaK-4	BaK-4	BaK-4	BaK-4	BaK-4
High Reflective Prism Coatings	Not Needed	Not Needed	Not Needed	Not Needed	Not Needed	Not Needed	Not Needed	Not Needed	Not Needed	Not Needed
Lens Coatings	Fully Multi-Coated	Fully Multi-Coated	Fully Multi-Coated	Fully Multi-Coated	Fully Multi-Coated	Multi-Coated	Multi-Coated	Fully Multi-Coated	Fully Multi-Coated	Fully Multi-Coated
Waterproof	Yes	Yes	Yes	Yes	Yes	Water Resistant	Water Resistant	Yes	Yes	Yes
Fogproof	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes (Argon)
Tripod Adaptable	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Built in tripod adapter	Yes
Warranty	Lifetime	Lifetime	Lifetime	Lifetime	Lifetime	Lifetime	Lifetime	Lifetime	Lifetime	Lifetime
Notes	Lenses made in Japan, Instrument assembled in the USA			Field flattener lenses used				Better Quality Optics, Components & Coatings than 'non pro' Skymasters