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A&M Triplet APO
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Highest Quality Refractor - Large Aperture - Fully Apochromat
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- Aperture: 105mm
- Focal ratio: f/6.2
- Triplet apochromat, fully multi-coated
- A&M / TMB optics (Strehl Ratio over 0.95)
- Interferometric test report included
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- Carbon fiber and CNC aluminium construction
- Internal baffles
- Focuser: 4" Feather Touch with adapters
- Colour: blue
- FREE: High quality mounting rings and dovetail
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A&M Triplet APO O.T.A.
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A&M optical tube assembly (OTA).
TMB Triplet Fluorite Apochromat.
Guaranteed optics with Strehl Ratio over 0.95.
4" Dual-speed William Optics focuser with adapters.
Interferometric test report.
Blue colour.
FREE: Mounting Rings and dovetail.
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| Model / Description |
View in Showroom |
Order code |
Price inc VAT |
Shipping |
Dispatched witnin |
click button to purchase |
| A&M TMB 105mm f/6.2 4" WO |
yes |
AMT1056W4 |
£ 3650.00 |
£ 30.00 |
24 hours |
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Outline
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All A&M refracting telescopes are manufactured using carbon graphite
and aluminum tubes. Each optical tube assembly (OTA) is CNC machined to
the highest tolerances and is computer optimizing for lightweight operation
with structural rigidity.
The front & rear rings and all small parts are fully CNC machined from aluminum,
stainless steel or brass. Other features include three point collimation and
computer optimized ray traced baffles. The finish of all parts is anodized or
multi-coat painted.
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The 4" Dual-speed focuser.
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Optical Performance
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The A&M APOs are based on A&M/TMB lenses that consist of three
air-spaced elements. The optics are fully multicoated with APO chromatic correction.
Each telescope comes with an inferometric test report included in the price.
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Internal baffles.
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Within the amateur community astronomical optics performance for both
mirrors and lenses is generally expressed in Peak to Valley (PV) terms,
this method is not representative of the quality of an optic and as such
more accurate criteria need to be employed. To demonstrate the flaw of
the PV method of measurement consider the exaggerated image of the profile
of two theoretical mirrors at the same 1/8 PV. The mirror on the left will
produce inferior images when compared to the mirror on the right.
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In the professional world of astronomy optics the Strehl ratio is in regular use.
The Strehl ratio is a measure of optical performance rather than an expression of
the physical surface or the shape of the optic’s wavefront as obtained with PV
or Root Mean Square (RMS) methods.
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A&M 105mm model with 4" William Optics focuser.
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Strehl performance is measured between 1 and 0, where 1 represents perfect optics.
High quality telescopes will generally have Strehl ratios of 0.95 or above.
Interferometric testing is required to ascertain the real quality and performance
of a mirror or lens in terms of their Strehl ratio. A&M telescopes come with
individual interferometric reports (where stated) to guarantee the quality and
performance of the optics that you acquire.
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The 180mm model.
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Focuser And Colour Options
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The A&M refractors are fitted with a 3" or 3.5" Feather Touch focusers.
Optionally, models fitted with 4" William Optics focusers or MoonLite focusers
are also available.
The telescopes are available in a number of colours including: perl, silver,
gold/orange, red and blue. Please state your preference with the order.
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Close up, pearl colour.
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Specification
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| Model |
A&M 80mm TMB Triplet APO |
| Optical Design |
Triplet air-spaced Super ED Apochromat |
| Lens |
TMB |
| Clear Aperture |
80mm |
| Focal Length |
TBC |
| Focal Ratio |
F/6 or F/7 |
| Optical Quality |
RMS 0.03 or better; Strehl number 0.95 or better |
| Optical design |
Triplet APO, Air-spaced, fully multi-coated |
| Construction |
Carbon fiber and CNC aliminium |
| Baffles |
3 |
| Focuser |
2" Feather Touch (option: 2" William Optics) |
| Tube Diameter |
113 mm |
| Tube Length |
361mm closed, 445mm extended |
| Tube Weight |
2.6 kg |
| Dia. Tuberings |
90mm |
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| Model |
A&M 105mm TMB Triplet |
| Optical Design |
Triplet air-spaced Super ED Apochromat |
| Lens |
A&M/TMB |
| Clear Aperture |
105mm |
| Focal Length |
650mm |
| Focal Ratio |
F/6.2 |
| Optical Quality |
RMS 0.03 or better; Strehl number 0.95 or better |
| Optical design |
Triplet APO, Air-spaced, fully multi-coated |
| Construction |
Carbon fiber and CNC aliminium |
| Baffles |
3 |
| Focuser |
3" or 3.5" Feather Touch (option: 4" William Optics) dual-speed |
| Tube Diameter |
113 mm |
| Dewcap Diameter |
140 mm |
| Tube Length |
55cm closed, 70cm extended |
| Tube Weight |
5.5 kg |
| Dia. Tuberings |
113mm |
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| Model |
A&M 115mm TMB Triplet |
| Optical Design |
Triplet air-spaced Super ED Apochromat |
| Lens |
A&M/TMB |
| Clear Aperture |
115mm |
| Focal Length |
805mm |
| Focal Ratio |
F/7 |
| Optical Quality |
RMS 0.03 or better; Strehl number 0.95 or better |
| Optical design |
Triplet APO, Air-spaced, fully multi-coated |
| Construction |
Carbon fiber and CNC aliminium |
| Baffles |
3 |
| Focuser |
3" or 3.5" Feather Touch (option: MoonLite 2.5") dual speed |
| Tube Diameter |
123 mm |
| Dewcap Diameter |
150 mm |
| Tube Length |
70.5cm folded with MoonLite 2.5" focuser
(63cm folded without focuser) |
| Tube Weight |
5.3kg (FT2); 7.2kg (FT3.5); 5.7kg (ML2.5) |
| Dia. Tuberings |
123mm |
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| Model |
A&M 130mm TMB Triplet APO |
| Optical Design |
Refractor |
| Lens |
A&M/TMB - triplet APO |
| Clear Aperture |
100 |
| Focal Length |
f/7 |
| Focal Ratio |
F/700 |
| Optical Quality |
RMS 0.03 or better; Strehl number 0.96 or better |
| Optical Design |
SuperAPO, Air-spaced, fully multi-coated |
| Construction |
Carbon fiber and CNC aliminium |
| Baffles |
5 |
| Focuser |
2" or 3.5" Feather Touch |
| Tube Diameter |
130 mm |
| Tube Length |
112cm closed, 128cm extended |
| Tube Weight |
8.0 kg approximately, (8.8kg with rings) |
| Dia. Tuberings |
134mm |
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| Model |
A&M 180mm TMB Triplet APO |
| Optical Design |
Refractor |
| Lens |
A&M/TMB |
| Clear Aperture |
180mm |
| Focal Length |
TBC |
| Focal Ratio |
F/7 |
| Optical Quality |
RMS 0.03 or better; Strehl number 0.96 or better |
| Optical design |
Air-spaced triplet, fully multi-coated |
| Construction |
Carbon fiber and CNC aliminium |
| Baffles |
6 |
| Focuser |
3.5" Feather Touch |
| Tube Diameter |
TBC |
| Tube Length |
TBC |
| Tube Weight |
15.5kg (FT 3.5") |
| Dia. Tuberings |
TBC |
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A&M 80mm model with optional 2" William Optics focuser.
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Optional Accessories
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The A&M refractors come with a dew shield as standard but the tube rings,
finder bracket and a carry case must be purchased seperately.
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The A&M 180mm model shown.
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Notice
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We are constantly checking the accuracy of the technical data. We are prepared
to provide more detailed information on request. Technical data is subject to
change without notice.
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