home
>
astronomy
>
Opticstar visual accessories
>
eyepieces
>
Zoom
>
XL 7.2mm-21.5mm eyepiece

Opticstar Zoom XL 7.2mm-21.5mm eyepiece

For astronomical and terrestrial use as well as for Solar observation.

Particularly flat field of view
Focal length: 7.2mm-21.5mm Zoom
Field of view: 40° - 60°
Parfocal at all magnifications
Optical elements: 7
Optical coatings: Fully Multi-Coated
Adjustable twist-type eyeguard
Excellent mechanical construction
Threaded for 1.25" filters
Barrel size: 1.25"
Sturdy cardboard storage box
UK warranty

Opticstar Zoom XL 7.2mm-21.5mm eyepiece

Product code: XLZ72
Availability: In stock
Despatch: 2 business days
Original Price: ~~£ 125.00~~

Shipping rates: England & Wales

£ 6.00

Scotland Central & South

£ 6.00

Scotland North

£ 6.00

Northern Ireland

£ 6.00

UK islands (from)

£ 6.00

European Union (from)

£ 12.00

Worldwide (from)

£ 18.00

Description

This very high-quality zoom eyepiece delivers a particularly flat field of view, high contrast and excellent colour rendition. It is recommended for astronomical and terrestrial use as well as for Solar observing with an appropriate telescope.

The eyepiece provides an apparent field of view of 60°-40° and continuous focal lengths between 7.2mm and 21.5mm, this range particularly suits SCT type telescopes that will operate at their highest magnifications at around 7.5mm under reasonable conditions. When used in conjunction with a 2x barlow the eyepiece will reach the maximum possible magnification for a f/4.8 Newtonian telescope thus making it very versatile with a variety of telescopes of different optical designs, focal lengths and focal ratios.

U.K. WARRANTY

INTERMEDIATE

VISUAL

OPTICS

ASTRONOMY

▼ read more ▼

Usability

The excellent mechanical construction and finish when combined with a sizeable 15mm eye relief an adjustable twist-type eyeguard makes this eyepiece comfortable to use. In addition, the eyepiece is parfocal and as such there is no need to refocus when changing magnifications.

Optical performance

The optical train consists of seven lenses in four separate groups, all optical surfaces are broadband fully multi-coated and all lenses feature blackened edges, the eyepiece also benefits from internal baffling. These features reduce internal reflections to an absolute minimum and help to significantly increase contrast.

Compact

The Eyepiece has a 1.25" nosepiece and is threaded for filters. It weighs 155 grams, measures 81mm tall (including the nosepiece) and has a 48mm maximum diameter.

Carries full one year UK warranty.

Opticstar Zoom XL eyepieces.

▲ read less ▲

▼ show specification ▼

Opticstar Zoom XL 7.2mm-21.5mm eyepiece
Attribute	Specification
Meade Product Code (SKU)	XLZ72
Universal Product Code (UPC)	n/a
Warranty	1 year UK warranty
Series	XL
Experience Level	Intermediate
Optical Design	Zoom
Optical Elements	7
Optical Groups	4
Focal Length	Variable between 7.2mm to 21.5mm
Optical Coatings	Fully Multi-Coated
Apparent Field of View (FOV)	Variable between 40° to 60°
Eyepiece Barrel Size	1.25"
Eye Relief	15mm
Eyeguard	Adjustable twist type
Weight	155 grams
Width	48mm
Height	81mm