The Binocular & Telescope Blog!

brunton 7 x 18 pocket monocular

Super Diaphanous Pocket-Size 15×32 Monocular Telescopes £3.99

Mini Compact Pocket-Sized 8X21 Monocular Telescopes £4.95

NIPON® 10×35 Monocular / Pocket Telescope. Brand New £14.99

New Adorable Pocket-Size15×32 Monocular Telescopes £0.99

Super Diaphanous Pocket-Size 15×32 Monocular Telescopes £0.01

Kenko 8×20 Pocket Monocular Microscope 2 in 1 £9.99

NIPON® 15×32 Pocket Telescope / Monocular. Brand New £9.99

8×21 Mini Pocket Scope High Compact Monocular FREE Case £0.85

Mini Compact Pocket-Sized 8X21 Monocular Telescopes £0.99

8X21 Compact Monocular Pocket Outdoor Camping Telescope £0.99

Stylish 15×32 Mini Compact Scope Sport Pocket Monocular £0.99

New Adorable Pocket-Size15×32 Monocular Telescopes £3.99

Army Military Camo 12×32 Compact Monocular Pocket Scope £0.99

NIPON® 10×35 Monocular / Pocket Telescope. Brand New £14.99

Mini Compact Pocket-Sized 15-55x Monocular Telescope B £12.17

12×32 Outdoor Sports Compact Monocular Pocket Telescope £0.96

tasco 16×40 Pocket Telescope Monocular Hiking Camping £7.12

Diaphanous Pocket-Size 15×32 Monocular Telescopes prism £8.95

NIPON® 10×35 Monocular / Pocket Telescope. Brand New £14.99

Super 15×32 Compact Telescope Pocket Monocular F Travel £0.99

Super Diaphanous Pocket-Size 15×32 Monocular Telescopes £0.01

Kenko 8×20 Pocket Monocular Microscope 2 in 1 £9.99

NIPON® 15×32 Pocket Telescope / Monocular. Brand New £9.99

Diaphanous Pocket-Size 15×32 Monocular Telescopes prism £0.01

Mini Compact Pocket-Sized 8X21 Monocular Telescopes £0.99

12×32 Outdoor Sports Compact Monocular Pocket Telescope £0.96

Stylish 15×32 Mini Compact Scope Sport Pocket Monocular £0.99

New Adorable Pocket-Size15×32 Monocular Telescopes £3.99

12×32 Compact Monocular Pocket Sports Travel Telescope £0.99

Mini Spy Monocular Pocket Finger Telescope X’Mas Gift £2.99

Army Military Camo 12×32 Compact Monocular Pocket Scope £0.99

NIPON® 10×35 Monocular / Pocket Telescope. Brand New £14.99

Mini Magic Monocular 10×21 Pocket Scope w/Inverted View £0.95

Mini Compact Pocket-Sized 15-55x Monocular Telescope B £9.87

Mini Compact Pocket-Sized 15-55x Monocular Telescope £12.17

Mini Compact pocket-sized 6×18 Monocular Telescopes New £5.59

Mini Compact pocket-sized 5×18 Monocular Telescopes New £4.80

New Super Mini 7×18 pocket-sized monocular telescope £5.85

Super Diaphanous Pocket-Size 15×32 Monocular Telescopes £0.99

Diaphanous Pocket-Size 15×32 Monocular Telescopes prism £0.01

Pocket Size 7 x18 Monocular Telescope For Sports £0.99

NIPON® 10×35 Monocular / Pocket Telescope. Brand New £14.99

New Adorable Pocket-Size15×32 Monocular Telescopes £0.99

Super Diaphanous Pocket-Size 15×32 Monocular Telescopes £0.01

Kenko 8×20 Pocket Monocular Microscope 2 in 1 £9.99

NIPON® 15×32 Pocket Telescope / Monocular. Brand New £9.99

Diaphanous Pocket-Size 15×32 Monocular Telescopes prism £0.01

Adjustable Focus Mini Pocket-Sized Monocular Telescope £6.99

POP Compact Monocular 15×32 Travel Camping Pocket Scope £0.99

Outdoor 10×25mm Mini Pocket Compact Monocular Telescope £0.95

Mini Compact Pocket-Sized 8X21 Monocular Telescopes £0.99

New Adorable Pocket-Size15×32 Monocular Telescopes £3.99

Twitchers Monocular – Pocket Size 10 x 25 101m/1000m £1.99

12×32 Outdoor Sports Compact Monocular Pocket Telescope £0.96

12×32 Compact Monocular Pocket Sports Travel Telescope £0.99

NIPON® 10×35 Monocular / Pocket Telescope. Brand New £14.99

Army Military 22×32 Compact Monocular Pocket Mono Scope £0.98

Pocket size Army Military 10×25 Compact Monocular Scope £0.92

NIPON® 10×35 Monocular / Pocket Telescope. Brand New £14.99

New Adorable Pocket-Size15×32 Monocular Telescopes £9.99

Kenko 8×20 Pocket Monocular Microscope 2 in 1 £9.99

NIPON® 15×32 Pocket Telescope / Monocular. Brand New £9.99

Mini Compact Pocket-Sized 8X21 Monocular Telescope 8X21 £3.99

12×32 Outdoor Sports Compact Monocular Pocket Telescope £0.96

☆Powerful Pocket Aluminum Coating Monocular Telescope £7.99

High Power 15×32mm Compact Monocular Pocket Mini Scope £0.99

Army Military Camo 12×32 Compact Monocular Pocket Scope £0.99

NIPON® 10×35 Monocular / Pocket Telescope. Brand New £14.99

Pocket size Army Military 10×25 Compact Monocular Scope £0.92

New Adorable Pocket-Size15×32 Monocular Telescopes £9.99

Mini Compact Pocket-Sized 8X21 Monocular Telescopes £4.95

Super Diaphanous Pocket-Size 15×32 Monocular Telescopes £0.99

Kenko 8×20 Pocket Monocular Microscope 2 in 1 £9.99

Pocket-Size 8×20mm Monocular £3.99

NIPON® 15×32 Pocket Telescope / Monocular. Brand New £9.99

NIPON® 10×35 Monocular / Pocket Telescope. Brand New £14.99

NIPON® 10×35 Monocular / Pocket Telescope. Brand New £14.99

Kenko 8×20 Pocket Monocular Microscope 2 in 1 £9.99

NIPON® 15×32 Pocket Telescope / Monocular. Brand New £9.99

NIPON® 10×35 Monocular / Pocket Telescope. Brand New £14.99

Nauticalia Pocket Monocular £14.95 Many people can’t get both sides of a pair of binoculars to focus, or find them too heavy to hold up to their eyes for any length of time. A monocular may be the answer. For a given magnification they are lighter and easier to hold steady, and simpler to use because there is only one set of controls. Many sailors also appreciate the fact that they can use their other (now spare) hand to hold on …

Natural History Museum Pocket Monocular – The Ultimate Gift for Christmas £4.87 595348…

Natural History Museum Pocket Monocular – Latest Gift for 2008 £4.87 595348…

National History Museum Pocket Monocular £5.87 595348…

Natural History Museum Pocket Monocular £2.95 …

Pocket Monocular £89.99 This is a superb little device, 10x magnification, smooth black rubber armoured, weatherproof and small enough to go everywhere with you, it even comes with a weatherproof mini belt case!…

Pocket Monocular from the National History Museum £6.95 …

Echo Pocket Scope 7×18, Black £12.99 What could be the spy’s most valuable tool, our new 7X18 monocular is remarkable. Built with BaK-4 prism glass, the multi-coated Pocket Scope has a near focus of only 13 inches. Quality optics have never been so small. Take a peek at the new Echo Pocket Scope before it takes a peek at you….

WISE telescope has Heart and Soul
NASA’s Wide-field Infrared Survey Explorer, or WISE, has captured a huge mosaic of two bubbling clouds in space, known as the Heart and Soul nebulae. The space telescope, which has completed about three-fourths of its infrared survey of the entire sky, has already captured nearly one million frames like the ones making up this newly released mosaic.
The Star Party – Telescope Solar Filters: Safely Observing The Sun

Solar filter for Celestron Nexstar 4se telescope £16.99

MEADE / CORONADO PST PERSONAL SOLAR TELESCOPE WITH CASE £387.98

MEADE / CORONADO PST PERSONAL SOLAR TELESCOPE WITH CASE £387.98

MEADE / CORONADO PST PERSONAL SOLAR TELESCOPE WITH CASE £387.98

Solar filter for Celestron Nexstar 6SE telescope £19.99

PLANETS & THE SOLAR SYSTEM mug 250ml £6.95 Large PLANETS mug allso available in 450ml from ILLUSTRATED LIVING…

Planets, The Solar System 450ml large fine china coffee mug £10.25 Also available in smaller size from ILLUSTRATED LIVING…

Photographic Print of Large solar prominence in extreme ultraviolet light, 1973. from Heritage-Images £10.00 10×8 Print. Printed on Fuji Crystal Archive paper for stable image permanence and brilliant colour reproduction with accurate colour rendition and smooth tones. Enhanced sharpness with excellent definition. Paper size approx 254×203mm…

Starry Night Enthusiast 5.0 £49.99 …

Starry Night Complete Space & Astronomy Pack Deluxe Edition £29.99 …

Starry Night Professional 5.0 £99.99 …

Celestron 93991 Astronomy 4 Beginners £13.00 Not only does it show you the objects in the sky but now it can answer many of the mystifying questions about the Universe:- How were the planets in our solar system formed?- How fast is the speed of light?- How far away is our closest neighboring galaxy?TOPICS INCLUDE:- Objects in the Sky – Explore the origins of a variety of objects in our sky. Stars, planets, clusters, galaxies and nebulas.- As…

telescope konusmotor 130 £179.99 Description A model with distinctive optical and mechanical quality for an exciting astronomical experience. The Konusmotor-130 offers the triple advantage of a large 130mm aperture, an extremely compact tube and an impressive 1000mm focal lenght that provides a high magnification power. This model includes a never-before-seen array of extra features: soft cases for carrying the telescopes every…

Can you please put the following major telescope companies end in sight?

Please rate the companies following the first of the worst in the manufacture of refracting taking into account the following criteria: price, quality / Optics, warranty, support, availability, reputation. The following companies Takahashi, Vixen, Astro-Physics, Tele Vue William Optics. Please also justify your choice.

Takahashi and Astro-Physics are the two on top of your choice. In the same league, but not in your selection of glasses are the TMB. Unfortunately Astro-Physics, while excellent, does not rank high on my list because they are simply not available in all (for me) reasonable period of time. You can spend a year or more before you can even get a waiting list. Me, I would like to take my telescope for a time before dying. This makes Takahashi and TMB TMB with the top choices for a wider range of products Takahashi. Manufacturing and quality is excellent circulation these telescopes. Other companies mentioned also build telescopes of excellent quality, but lack the range of equipment available. In smaller sizes of any of these other companies will provide an excellent telescope. It depends a lot on what you are looking for. Please Please note that people who buy these fields usually only buy them as optical tubes and provide their own mounts. If you want to buy a complete system, Takahashi then would be your first choice. To sum just phenomenal, they will help you set up all complete with go climbing and all goodies. But know that the accessories are sold Takahashi "à la carte", you buy each item separately. Unfortunately society frowns modern practice of selling the wife and children into slavery to finance these high-end equipment. So, good luck:) Adolph

Moon@5000mm FL

Televue 17mm Nagler Type 4 (Tele Vue) £145.00

Tele Vue Powermate 5x 1.25″ £92.00

Tele Vue 2.5x Power Mate £0.99

Extension Tube 3in Tele Vue £50.95 …

Extension Tube 2in Tele Vue £50.95 …

62 mm filter fits what canon slr lenses?

i have a pic of a canon slr with a zoom attached to it. i dont know anything about the zoom lense.
the only piece of information i have is that slr is a canon T-50 and the Filter Size of that Zoom is
62 mm. Can some one please advise giving me a list of possible Zoom Lenses out of which one could be the one which is attached to this T-50 Pic. I could search and find that Sigma DG 28-300 is one of them, but the pic of Sigma DG 28-300 does not look like the one which is attached to the T-50. Thanks for your help and expertise! sincerely – Manav M

Follow this link and look under the specification of each Canon lens. The filter thread size is listed there.

http://www.usa.canon.com/consumer/controller?act=ProductCatIndexAct&fcategoryid=140

Here is one that uses a 77 mm lens.

http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&fcategoryid=148&modelid=8940#ModelTechSpecsAct

Hookah Pipe Coppery Smoking Filter Tobacco Water Pipe

Comet Filter. Fits all 1.25” Eyepices £95.00

MOON FILTER FITS ALL STANDARD 1.25″ EYEPIECES £10.00

MOON FILTER FITS ALL STANDARD 1.25″ EYEPIECES £10.00

MOON FILTER FITS ALL STANDARD 1.25″ EYEPIECES £10.00

MOON FILTER FITS ALL STANDARD 1.25″ EYEPIECES £10.00

Infra red blocking filter 2″ fit £29.99

Infra red blocking filter 1.25″ fit £19.99

ORIGINAL DD-7098 WATER FILTER-CLG FRS2031-EXTERNAL FIT-CHANGE EVERY SIX MONTHS. £16.29 EXTERNAL FILTER DD-7098 PART NO. 497818 FOR DAEWOO FRS2031…

UNIVERSAL Carbon Cooker Hood FILTER Kit Will Fit Hotpoint Electrolux £3.25 …

CLEAR LINE WATER FILTER (FITS IN FRIDGE DOOR) PLUS 3 BI-FLUX WATER FILTER CARTRIDGES – REPLACEMENT CARTRIDGES SOLD ON AMAZON – ALSO FIT BRITA MAXTRA £14.50 LAICA – OVERVIEW LAICA’s head office is situated in north-east Italy, LAICA is a family company which was established in 1974, thus having over 30 years of specialist experience of the consumer market. LAICA’s success story is based on providing fast, flexible responses to the needs of a constantly evolving market with innovative, practical and cost-effective products without sacrificing style an…

Hori Officially Licensed DSi Protective Filter & Stylus Pen Fit – Black (Nintendo DSi) £7.99 …

Brita 2 Pack Replace Filter Fits 42201 £49.01 INDICATIONS: The Brita On Tap Faucet Filter removes the microbes cryptosporidium and giardia. It also reduces lead, TTHM, VOC’s, lindane (pesticide), 2, 4-D, alachlor, atrazine (herbicide), chlorine (taste and odor), and sediment….

Hollister Premier Drainable Pouch Filter Cut To Fit Ultra Clear Skin Barrier, 88501, 2.5, 10 / Box £66.00 INDICATIONS: Hollister Premier Drainable Pouch and Cut To Fit Ultra Clear Skin Barrier Protects the skin, yet is gentle upon removal. SoftFlex skin barrier with tapered edges eliminates….

LCD/TFT Monitor Filter fits 15 to 17 Screens – Grey £12.99 …

LCD/TFT Monitor Filter Privacy Version fits 15 to 17 Screens – Black …

Help calculation?

On-air balloon is rising upward from a field, and is followed by a rangefinder 500 feet breakpoint lift. the balloon rises at a rate of 15 feet per second. A) How fast is the direct distance between the rangefinder and the ball changes by 5 seconds B) How fast is the angle of elevation change when the balloon is 500 feet high, it gave us a diagram a right to trianle hypotenuse labeled D and the side labeled h and 500 equaling the bottom

Based on your data Let D = Hypotenuse of the triangle (which is the distance the ball at the range finder at any time "t") h = height of the ball on the ground at any time "t" b = distance from the station continued recovery point off the ball. Your original equation is d ^ 2 = H ^ 2 + b ^ 2 Differentiate above, 2D (dd / Dt) = 2h (dh / dt) + 2b (dB / dt) Since db / dt = 0 (the distance between the point of taking off and the monitoring station does not change because it is always equal to 500 ft.) above simply becomes 2D (dd / dt) = 2h (dh / dt) + 0 simplify, d (dd / dt) = h (dh / dt) Resolution to (dd / dt). (Dd / Dt) = (h / d) (dh / dt) – call this equation NOTE that dh / dt = 15 m / sec (given) h = 15 * 5 = 75 and = sqrt (75 ^ 2 + 500 ^ 2) = sqrt (5625 + 250 000) d = sqrt (255 625) d = 506 ft substituting the values into the equation, (dd / dt) = (75/506) * 15 = 2.22 m / sec. **************************************** Let A = angle of elevation of the hot air balloon from the geometry of the figure, tan A = h/500 Differentiating the above, d (tan A) / dt = (dh / dt) / 500 I trust that you can do the math required procedure from here.

Canon Angle Finder C Review

1.25x-2.5x Angle Finder for Canon Nikon Pentax Minolta £26.89

1.25-2.5x Angle Finder for Pentax K20D K10D K200D K100D £26.89

1.25x-2.5x Angle Finder for Canon 1000D 450D 400D 350D £26.89

1.25x-2.5x Angle Finder for Nikon D700 D300 D200 D100 £26.89

1.25x-2.5x Angle Finder for Canon 1000D 450D 400D 350D £26.89

1.25x-2.5x Angle Finder for Minolta SE 9xi 5xi 7XL 18mm £26.89

1.25x-2.5x Angle Finder for Canon 400D 350D 30D 20D A1C £26.89

1.25x-2.5x Angle Finder for Nikon D90 D80 D70s D60 D40x £26.89

1.25x-2.5x Angle Finder for Nikon D90 D80 D70s D60 D40x £26.89

1.25x-2.5x Angle Finder for Canon 50D 40D 30D 20D 5D II £25.58

1.25x-2.5x Angle Finder for Canon Nikon Pentax Minolta £25.58

1.25x-2.5x Angle Finder for Canon 1000D 450D 400D 350D £25.58

1.25x-2.5x Angle Finder for Canon 50D 40D 30D 20D 5D 1D £25.58

1.25x-2.5x Angle Finder for Minolta SE 9xi 5xi 7XL 18mm £25.58

1.25x-2.5x Angle Finder for Canon 400D 350D 30D 20D £25.58

1.25x-2.5x Angle Finder for Nikon D90 D80 D70s D60 D40x £25.58

1.25-2.5x Angle Finder for Pentax K20D K10D K200D K100D £25.58

1.25x-2.5x Angle Finder for Nikon D700 D300 D200 D100 £25.58

Am-Tech 24 600mm Multi Function Ruler & Angle Finder £16.99 …

140mm Aluminium Angle Finder With Laser £12.00 …

Foundation finder$: A handbook for finding foundation funds …

The Authentic Food Finder: A New Guide to Finding and Buying Traditional, Organic and Fine Foods Direct from the Maker and Grower £8.96 …

Canon ANGC Angle Finder £175.99 Canon Angle finder C for EOS (2882A001)…

1-3.3X Right View Angle Finder for Canon 50D,40D,30D,1000D,550D,500D,450D,7D,5D,1Ds Nikon D5000,D3000,D700 D300 D200,D90,D100,D50,D80,D70,D60,D40,Olympus E620,E520,E450,E420,Sony Alpha A900,A850,A550,A500,A450,A380,A350,A330,A300,A230,A200 Pentax Fuji Sigma DSLR Camera. £52.99 The right angle view machine ( Angle Finder ) is a system accessory dedicated to photograph, can used for turning over to clap the document data, news photograph, providing the image top and bottom the or so all having no the inverse right angle view, combining the Dioptric correction range, convenient customer usage. This product is applicable to the seagull, Phoenix, Minolta, Canon, Nikon, F…

1-2X Right View Angle Finder for Canon 50D,40D,30D,1000D,550D,500D,450D,400D,350D,7D,5D,1Ds Nikon D5000,D3000,D300 D200,D90,D100,D50,D80,D70,D60,D40,Olympus E620,E520,E450,E420,Sony Alpha A900,A850,A550,A500,A450,A380,A350,A330,A300,A230,A200,Pentax Leica Contax DSLR Camera £45.99 Compaticable Model: Nikon D300 D200, D90,D100, D70S, D70, D50, D80 D40 F80/F50/F50D/F55/F60/F60D/F65/F70/F70D/F75 F301/F401/F501/F601/FE10/FM10 Canon EOS 450D.1000D,400D, EOS 350D, EOS 300D, EOS 300V, EOS 1D, 1DII 1Ds, 1V, EOS D30, 50D,40D,20D,5D, 5DII,20D, 10D, D60, D30, EOS 300, 88QD, 500N, EOSAD1, EOSIN EOS 60, 55, 50E, 33, 30, 30V, 3, 5, Sony A100 A200 A300 Minolta Maxxum/Dynax 7D, 5D, 7, …