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Model: wo-gt-81_anniversary_otaPart Number: A-F81GT-VP20ABrand: William Optics
Es Reid is highly regarded in the optical industry so to ensure our William Optics triplet refractors perform at their very best we send them to him for checking and, if necessary, tuning on his optical bench.
You can order your telescope with confidence knowing it will have well figured optics, negligible false colour and spherical aberration, and no astigmatism (the bane of any optical system!). Star shapes will be round, not triangular, oval or egg-shaped!
You know it makes sense :-)
The William Optics GT-81 APO Triplet refractor features a 3-element f/5.9 objective with an Ohara FPL-53 extra-low-dispersion glass element for optimum colour correction and a new upgraded dual-speed 2-inch Crayford V-power focuser with a smoother action and no image shifting with a capacity of up to 6.8kg (15lb).
The Hotech SCA Field Flattener is an excellent match for this telescope.
The William Optics 0.8x focal reducer is also available to reduce the focal-ratio to a fast f4.72.
An excellent choice for astrophotography!
Includes mounting bracket, carry handle, finder/guider rings and high quality soft carry case.
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William Optics 90mm CNC Tube Rings£109.00
William Optics 0.8x Reducer Flattener 6a - GT81£169.00
William Optics 81mm Carry Soft Case£49.00
First Light Optics LtdUnit 7 Budlake UnitsBudlake RoadMarsh Barton Trading EstateExeter, DevonEX2 8PY
Company No. 5892293VAT No. 907 2895 01
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