Beacon
Hill Telescopes January 2010
Mirror Cells
3 - point support 6" .......... £36.00
3 - point support 8" .......... £45.00
3 - point support 10" ........ £48.00
9 - point support 12" ........ £68.00
9 - point support 14" ........ £75.00
9 - point support 16" ........ £88.00
Flat Supports
Single pole supports ........ £17.63
4 - vane spiders .............. £50.00
Rack & Pinion Focusers
1.25/2” fitting …………...£45.00
Finders
6 x 30 complete with bracket ........
£28.00
9 x 50 complete with bracket …… £53.00
Rings for 7 x 50's …………......... £14.69 pair
Right-angled finders also available
Mk.II Equatorial Head
As per catalogue description ........ £370.00
NB. To this price must be added the cost of a suitable pair of worm wheels see
later in price list). It is said that the diameter of your Right
Ascension wheel should match that of your primary mirror?
Both mountings are complete with suitable cradles and counterweights. Heavy
duty fork mountings for larger reflectors made to order.
Dobsonian Telescopes
Round aluminium tubes as per the catalogue illustration are used with our
6", 8", 10" & 12" models thereafter either the
same, rolled aluminium tubes, square wooden skeleton tubes, square welded
aluminium tubes or round section welded aluminium tubes for future fitting to
an equatorial mounting. The square welded aluminium tubes are made from
1/4" thick aluminium angle section and are fitted with thin plywood light
baffles around both mirrors. This makes a very rigid, strong
structure and comes highly recommended.
12" F5 in LE glass and rolled aluminium tube ........ £900.00
Worm & Wheel Sets
3.5" diameter ........ £77.50
6.5" diameter ........ £110.00
8" diameter ........... £130.00
11" diameter ......... £180.00
14" diameter ......... £250.00
Synchronous Motors ......... £40.00
Reversible Dec. Motors ... £49.00
Pedestal Bases Reflector height ........ £59.00
Refractor height ............................... £72.00
Driven Camera Mount As described in catalogue ........ £170
Eyepiece Adaptors
BHT1 ........
£5.88
BHT2 ........
£8.00
BHT3 ........ £9.00
BHT4 ........
£9.00
BHT5 ........ £17.00
Complete Mirror Kits (NB Glass disks extra)
Containing sufficient quantity of the following, 80, 120, 220, 320 Aluminium
Oxide. 225, 175, 125, 95 Optical powder, Cerium Oxide and Optical Quality
Pitch
For 6" mirror ........ £27.00
For 8" mirror ........ £29.00
For 10" mirror ...... £39.00
Glass Disks
Mirror blanks in Chance Pilkington glass with machined edges and both sides
chamfered, each with its own matching tool.
150mm x 25mm disk ........
£26.00 150mm
x 19mm Tool ........£24.00
200mm x 25mm disk ........
£39.00 200mm
x 19mm Tool ........£37.00
250mm x 25mm disk ........
£51.00 250mm
x 19mm Tool ........£49.00
Low Expansion Glass P.O.A.
NB. We do not provide details of mirror grinding and figuring as this is amply covered in several specialist books on the subject. However we do include, with our mirror kits, information detailing the sequence that should be followed from 80-grit, through to Cerium Oxide polishing.
Grinding Powders Etc
80 grit Silicon Carbide ........................... £9.00 per lb
120 & 220 mesh Aluminium Oxide ........ £0.76 per oz
320 mesh Aluminium Oxide ................... £0.82 per oz
225 Optical Powder .............................. £0.94 per oz
175 Optical Powder .............................. £1.06 per oz
125 Optical Powder .............................. £1.12 per oz
95 Optical Powder ................................ £1.12 per oz
Cerium Oxide 1650 ............................... £1.95 per oz
Medium Optical Pitch ............................ £7.25 per lb
Completed Mirrors & Flats (to 1/10 wave
(Larger sizes available. Intermediate diameters & focal lengths available))
All sizes……….. £POA
We can also supply, ex-stock, some American flats with a surface accuracy of 1/8th wave, in different sizes
Eyepieces (SkyWatcher Range)
Erecting Eyepiece 10mm …….... £28.00 Long Eye
Relief Eyepieces
Super Plossls 2mm ………………………... £39.00
40mm ………………………... £38.00 5mm ………………………... £34.00
32mm ……………………..….. £38.00 9mm ………………………... £34.00
26mm ………………………… £29.00 15mm ………………………. £34.00
20mm ………………………… £29.00 20mm ………………………. £34.00
17mm ………………………… £29.00 25mm ………………………. £34.00
12.5mm ………………….…… £29.00 Ultra Wide Eyepieces
10mm ………………………… £29.00 6mm ………………………... £39.00
7.5mm ……………………...… £29.00 9mm ………………………... £39.00
6.3mm ……………………...… £29.00 15mm ………………………. £39.00
20mm ………………………. £39.00
Zoom Eyepiece 7-21mm ……… £48.00
Super Wide Angle Eyepieces (NEW) x2 Economy Barlow …..………. £15.00
3.5mm ………………………… £79.00 x2 Delux Barlow ……..………... £29.00
5mm ………………………...… £79.00 x2 TAL Barlow ……..………... £29.00
8mm ………………………...… £79.00 x3 TAL Barlow ……………...... £34.00
13mm ……………………….… £79.00 x2 Delux ED Barlow …………... £49.00
17mm ……………………….… £79.00 Dual Speed Crayford Focusser ... £129.00
1.25” Rack & Pinion ………….. £39.00
45deg Erecting Prism ………….. £39.00 Moon filter ……………………. £14.00
90deg …………………….…… £45.00 Cheshire collimator …………….. £24.00
90 deg Star Diagonal ………..… £36.00
DeLux Di-electric Diag ………... £59.00
Universal Digiscoping Adaptor ……………………...… £39.00
Binoviewer (with x2 Barlow) ………...……………...… £129.00
TAL wooden tripod ………………………………...… £85.00
Stainless steel tripod for EQ5 …………………..…...… £56.00
Stainless steel tripod for EQ6 …………………..…...… £119.00
Pillar Support for EQ5 ……………………….……..… £150.00
Pillar Support for EQ6 ……………………………...… £160.00
Eyepieces (Vixen and other Range)
X3 fully coated Barlow …………. £39.00
X2 APO) Barlow ………………..£79.00
Lanthanum series Lanthanum series wide angle
2.5mm ……………………….… £127.00 3.5mm ………….………….… £199.00
4mm ………………………....… £118.00 5mm ……………………….… £199.00
5mm ………………………....… £109.00 8mm ……………………….… £194.00
6mm ………………………....… £109.00 13mm …………..………….… £194.00
7mm ………………………....… £109.00 17mm …………..………….… £199.00
9mm ………………………....… £109.00 22mm …………..………….… £199.00
10mm ………………………..… £109.00 zoom 8-24mm ….………….… £175.00
12mm ………………………..… £109.00 Vixen Plossls
15mm ………………………..… £109.00 4mm ……………………….… £35.00
18mm ………………………..… £109.00 6mm ……………………….… £35.00
20mm ………………………..… £121.00 9mm ……………………….… £35.00
25mm ………………………..… £124.00 12mm …………..………….… £38.00
40mm ………………………..… £121.00 15mm …………..………….… £38.00
20mm …………..………….… £38.00
Orthoscopics 25mm ……………..……….… £40.00
4mm …………………………… £55.00 32mm ……………..……….… £50.00
6mm ………………………....… £52.00 40mm ……………..……….… £50.00
9mm ………………………....… £52.00
12mm ………………………..… £52.00
18mm ………………………..… £52.00
25mm ………………………..… £54.00
Super Plossls
6.3mm ………………………..… £63.00 7.5mm ………………………..… £64.00 10mm ………………………..… £65.00
12.5mm ………………………… £65.00 17mm ………………………..… £69.00 20mm ………………………..… £69.00
26mm ……………………………£69.00 32mm ………………………..… £75.00 40mm ………………………..… £75.00
Filters (screw in type for 31.7mm eyepieces)
Blue 80A ………………………..… £12.00 EHC Pho/Vis ………………………..… £79.00
Minus Violet ………………………. £50.00 Sodium Lighr Pollution ……………….… £59.00
Orange YA2 …………………….… £12.00 Red 25A ……………………………… £12.00
Yellow Y2 ………………………… £12.00 Violet ……………………………….… £12.00
Green …………………………...… £12.00
Crayford low profile focuser ………………………..… £129.00
Crayford low profile focuser (flat base) ……………..… £54.00
Our own design Adjustable Guidescope Brackets to fit onto your tube and carry a suitable Guidescope. These will allow several degrees movement in any direction by using a fine screw adjustment. This will enable you to lock onto a guide star without moving your main telescope. We can also supply a suitable guidescope with a very lightweight tube. Remember you need to guide with a magnification five times that of your main telescope focal length in inches. If not, movement will record on the film before you can detect it in the guidescope. In other words your guidescope should be adequate.
Adjustable Guidescope Brackets ................................................... From £70.50
Variable Frequency Oscillators Dual Axis ..................................... £170.00
Baader Sheet (For safe direct solar observing) per square foot ........ £14.00
Teflon Sheet For Dobsonian bearings per square inch ................... £0.72
We can also supply the following and much more ...........
· · Binoculars from 7 x 50's to 20 x 100's
· · Solid brass rod and Stainless steel rod
· · Stainless steel nuts & bolts
· · All nuts & bolts in mild steel
· · Roller bearings and pillar blocks
· · Brass gears and pinions
· · Rough castings in aluminium, cast iron and phosphor bronze
LATEST ADDITIONS TO OUR RANGE
AWR Technology products through Beacon Hill Telescopes
Sidereal Clocks
An observatory style, microprocessor controlled, dual mode SIDEREAL/UNIVERSAL
CLOCK showing HOURS:MINUTES:SECONDS. This unit keeps track of both
universal and sidereal time and the display can be switched between the two
making the clock invaluable in the observatory. The display is most
effective in the dark with its switchable backlight making it readable over 30
feet away. The clock features quartz accuracy and possesses the other
observatory requirement - that of a metronome facility which beeps, if required
every second with a longer beep on the minute.
The unit requires a 12v supply and has a 9v PP3 backup battery so the clock can keep running whatever the supplies are doing. It can run over 50 hours on backup battery making field portability a real option. The maintained times deviate from each other by less than 1.89s per year and are calibrated to 1ppm. Time SET is relatively easy and protected against accidental pressing of buttons. The /EXT version has an additional mains input designed for continuous running and alleviates the need for an external 12v supply.
MODEL SC110 ........ £POA
Astropip - Metronomes
Ideal for use in the dark for providing accurate audible time pips at remote
sites. They give a 'pip' every second with a longer 'beep' on the minute.
Synchronise the time with GMT and it will keep within 0.1s per hour. The
AP2000 has in addition a backlit display which shows elapsed time which can be
frozen at an event. Ideal for recording occultation timings, the timing
of astro photographs or for use in the photographic darkroom. Battery
life over 1000 hours. (Battery Extra)
MODEL AP200 (2 'AAA' cells required) ........ £POA
MODEL AP2000 (1 'PP3' required) ........ £POA
We have full machining, sheet metal and welding facilities and are often asked to make up special parts to our customers own specifications. It is our policy to never say no to any reasonable request for help. Do not hesitate to give us a ring anytime between the hours of 12 and 5pm Mon to Fri.
Please note that we also undertake work of an non-astronomical nature and have in the past constructed such items as astronomical domes and camera obscurers.
VAT reg No. 455 4672 28)
All small packages will be sent via the post under insurance cover. Postage charges extra. Larger items by arrangement. Personal delivery service available. 10% deposit with order please. Visitors to our workshop are welcome but please telephone first.
Please telephone or write for more information or price list & brochure
