Scope Optical

Physics optical instruments question help?

006 (part 1 of 4) 10.0 points
Note: The repiprocal of the focal length is
called the power of a lens. When the focal
length is expressed in meters, the power is
given in reciprocal meters, call “diopters (D)”
A crude, symmetric handheld microscope
consists of two converging 22 D lenses fastened
in the ends of a tube 27 cm long.
What is the “tube length” (distance be-
tween the foci of the two lenses) of this micro-
scope?
Answer in units of cm.
007 (part 2 of 4) 10.0 points
What is the lateral magnification of the ob-
jective?
mahal (asm2263) – Optical Instruments – mitchler – (3) 2
008 (part 3 of 4) 10.0 points
What is the magnifying power of the micro-
scope?
009 (part 4 of 4) 10.0 points
How far from the objective should the object
be placed?
Answer in units of cm.

1)17.9 cm ---27-(1/22 x 2)

2)mo= -li/fo = -17.9/4.5cm = -3.94

3) mt=mo x me
=(-3.94) x (25/(1/22 x 100)
- 21.67

4)1/do = 1/f0- 1/di

di= 27-(1/22x100)

so answer shoud be

5.7 cm

Tuff Scope $40 RM Tuff Scope. Transform your Tuff Cam into a digital microscope with our new Tuff Scope. Portable and simple to use, you can take magnified digital pictures either attached to or away from the PC. The microscope can be used with the Tuff Cam attachment as a digital microscope or without the attachment as a normal microscope. The imaging head can be removed from the stand to make it hand held. Magnification 50x 100x 100x 200x 200x 400x 2x Continuous Optical Zoom Storage Draw Transmissive and reflective LED Lighting Powered by 3xAA batteries (not supplied)

X-Scope™ 7 Function LED Lighted Optical Pocket Tool $14.11 The CP-11 X-Scope™ from Carson Optical is a 7-function, multi-use optical pocket tool. The X-Scope™ contains a 30x Microscope, 8x Telescope, 9x fold-out Magnifier, LED flashlight, signal whistle, directional compass and digital clock. It is compact, lightweight and easy to use. This multi-use pocket tool will provide hours of entertainment and fun. Magnification: 8x / 9x / 30xWeight: 1.9 oz.Dimensions: 1.625" x 1.75" x 4.75"Batteries: 2 AAA (not included)

TK2 Scope $119.95 Embark on a guided journey through the microscopic world, revealing its hidden creatures and unseen structures with the TK2 Scope. First, learn how to use the microscope and all of its parts. Next, becomes familiar with your scope by examining some prepared slides. Now, you are ready to take off on a guide investigation of plant and animal speciimens that you gather and prepare yourself. This kit gives you the tools, knowledge, and skills you need to view virtually any specimen you can find.The microscope is a dual light 40-, 100-, and 400-power metal and plastic microscope. The two battery-powered LED light sources allow for both the viewing of large or opaque objects lit from above and the viewing of thinly sliced or translucent specimens lit from below. It has a 10-power ocular lens; 4-, 10-, and 40-power objective lenses; and an aperture wheel. The lenses are all professional-quality optical glass. The microscope is durable and powerful, permitting years of continued observations. The full-color, 48 page manual guides you through set-up, usage, and dozens of fascinating observations of biological specimens.

Golf Scope $29.95 Precision optical instrument determines pin placement quickly, easily and accurately. Compact and easy to use - fits in pocket. Comes with handle strap, carrying case and cleaning cloth. No more hunting for yard markers.Focus-free, waterproof and fog-proof.Helps golfer make the right club choice.Magnifies up to 8x (22mm objective lens).Ruby-coated optics for UV protection.Ergonomic design is easy to grip and hold.

GeoSafari Tuff Scope $34.95 Explore images up to 400x their original size with Tuff Scope! This two in one microscope is perfect for classroom projects or magnification on the go! Simply set up as a classroom station or remove the microscope from the base and send kids outdoors to explore. When used with the GeoSafari Tuff Cam digital video camera, GeoSafari Tuff Scope transforms into a digital microscope, projecting magnified images onto a computer screen or projector. Also features 2x continuous optical zoom, transmissive and reflective LED lighting, and a storage drawer.

Geosafari Tuff Scope $1000 Explore images up to 400x their original size with Tuff Scope! This two-in-one microscope is perfect for classroom projects or magnification on the go! Simply set up as a classroom station or remove the microscope from the base and send kids outdoors to explore. When used with the GeoSafariTuff Cam digital video camera, GeoSafari Tuff Scope transforms into a digital microscope, projecting magnified images onto a computer screen or projector. Also features 2x continuous optical zoom, transmissive and reflective LED lighting, and a storage drawer.

Sightron 10-50x60lrmd Scope 10-50x60lrmd Scope $1047.26 Since 1993 Sightron Scopes have built a reputation for excellent optical quality and reliably repeatable adjustments. These scopes feature the ZACT-7 sevenlayer multi-coat on their precision-ground lenses and Sightron's unique ExacTrack windage and elevation adjustment system. Your choice of either the MOA-2 or standard Mil-Dot reticle both indexed at 24x. The MOA-2 reticle has stadia lines at 1-MOA increments on the vertical and horizontal crosshairs. These scopes feature windage and elevation target knobs with 1⁄8 MOA click adjustments and side focus. After sighting in the knobs are resettable to zero. 30mm main tube; matte black finish. Mfg: Sightron Inc. SPECS: Finish Matte Black. Magnification 10-50x. Objective Lens 60mm. Tube Diameter 30mm. Reticle Mil-Dot (indexed at 24x). Field of view 9.6-2.2 ft@100 yds. Length 16.90 inches. Eye relief &ndas

15-40x50 Colorado Spotting Scope $28.99 Barska Colorado 15-40x 50 Waterproof Straight Spotting Scope, Black, w/ Tripod & Case CO11500 Specifications: Model # CO11500 Magnification 15-40x Objective Lens 50mm Prism type Porro Eyepiece System Straight Exit Pupil 3.5mm@15x Optical Coating Fully Coated Field of View (ft@1000yds/m@1000m) 150ft/45m@15x Close Focus (ft/m) 26.24/8@15x Eye Relief 13-10mm Included Accessories Mini table top tripod and soft carrying case Warranty Limited Lifetime

Celestron 52250 Ultima 80mm Spotting Scope $219.96 A great all-around optical instrument. The Ultima 80mm spotting scope is designed for nature observation and long-distance viewing. Its green rubber optical tube allows for subtle observation in any nature environment. From Celestron.

ATN Corp. NVWSMRS6WP Night Vision Rifle Scope $5431.73 Every optical lens on the ATN MARS6xWPTT Scope is individually fitted and calibrated to achieve optimum performance. WPT is a registered trademark of American Technology Network Corp.

25X30 BLUELINE,SPY SCOPE $29.99 25x30 Blueline Spy Scope, There is nothing that expresses classic elegance and traditional sophistication more than brass. BARSKA's Classic Connoisseur Collection is in a class by itself. This precision-made, high quality brass optical product makes a stunning addition to any décor and are as functional to use as they are beautiful to look at. Brass spyscope with high power collapsible focusing eyepiece, Includes leatherette case Specifications: Model # AA10200 Magnification 25x Objective Lens 30mm Prism type Roof Prism Glass BK-7 Exit Pupil 1.2 mm Optical Coating Fully Coated Field of View (ft@1000yds/m@1000m) 105/35 Close Focus (ft/m) 1.8/6-2.4/8 Eye Relief 8 mm Weight 9.86 oz. Included Accessories Leatherette Case and Lens Cloth Warranty 1 Year Limited Warranty

22-67X100 BLACKHAWK STRAIGHT SPOTTING SCOPE $429.99 22-67x100, Blackhawk Spotting Scope: -Straight, MC, Green Lens -Tripod and Premium HC -100% Waterproof and Fogproof -Zoom magnification -Shock absorbing armor -Glare reducing extendable sunshade Performance that soars beyond your expectations. This Blackhawk spotter set the standard for portability, optical performance and value.

Gladiator 20-60x90 Waterproof Spotting Scope with Spotting Scope $435.75 Big news! With crystal clear clarity and extreme ruggedness, nothing rivals the impact of Gladiator’s unparalleled performance. Thanks to large objective lens sizes and Gladiator’s superior coated optical systems, these scopes reveal ever detail in optimum contrast, vivid color and sharp resolution. 100% waterproof and housed in a rubber armor covering to protect them from harsh weather conditions, these scopes are ideal for long-range big game stalking. Includes table top tripod or mount the scope to a photo tripod. Backed by the manufacturer's Limited Lifetime WarrantyFEATURES:20-60x magnification with large 90 mm objective lens with dry Nitrogen-purged and sealed to prevent fogging and moisture damage, and O-ring sealed for complete waterproof protectionMulti-coated optics maximizes light transmission and massive objective lens increases light gathering ability thus delivering brighter images in low-light conditions.Porro prism type spotting scope with straight eyepiece systemMaximum functionality in all weather-conditionBonus accessories includes fully functional micro-adjustable tripod with quick release platform, compact and lightweight design Max. height: 17.4 inch Min. height: 11 inch.PRODUCT SPECIFICATIONS:Specifications:20-60xField of View (ft@1000yds/m@1000m) =99.5/33.2@20x,52.5/17.5@60xExit Pupil (mm): 5.1@20x~1.7@60x Close Focus (ft/m) 32.8/10Eye Relief (mm) 2.6@20x18.7@60x

20-60X90WP GLADIATOR,STRAIGHT SPOTTING SCOPE $209.99 20-60x90 WP, Gladiator Spotting Scope: -Straight, large objective lens -Multi coated optical systems -100% waterproof and fogproof -Housed in a rubber armor covering -Built-in extendable sunshade -Inlcudes quick release platform table top tripod and carrying case Thanks to large objective lens sizes and Gladiator’s superior coated optical systems, these scopes reveal every detail in optimum contrast, vivid color and sharp resolution. Ideal for long-range big game stalking.

Nikon Monarch 8438 Rifle Scope $320.99 11.50 ft 11.50" Length 13.40 oz 2 - 8x 32 mm 4 mm 4" to 96.52 mm 46 ft - 11.50 ft @ 100 yard 8438 Monarch 8438 2-8 x 32 BDC Rifle Scope Lens Caps Windage Elevation Caps From carbine, to mountain rifle to deer rifle, this is a sweet little scope for any rifle with its wide power range, wide field of view and compact, lightweight size. Nikon has engineered the entire optical system to provide the shooter with a bright, sharp, incredibly flat sight picture and light transmission up to its theoretical maximum 95%. Fogproof Hunting Lifetime Matte Black Monarch Monarch 8438 2-8 x 32 BDC Rifle Scope Nikon Nikon Corporation Rifle Scope Shockproof Shooting Waterproof www.nikon.com

Celestron Travel Scope 70 Telescope $84.95 This telescope was designed with traveling in mind while offering exceptional value. The Travel Scope is made of the highest quality materials to ensure stability and durability. All this adds up to a telescope that gives you a lifetime of pleasure with a minimal amount of maintenance. Featuring a compact and portable design with ample optical performance, the Travel Scope is ideal for terrestrial as well as casual astronomical observation. 70 mm (2.8") diameter refractor400 mm focal length (f/5.7)5x24 finderscopePhotographic tripod - full size20 mm eyepiece (20x) - 1.25"10 mm eyepiece (40x)Erect image diagonal - 1.25""The SkyX" CD-ROM Backpack holds everythingMetallic charcoal black tube color

Orion 20-60x60mm Zoom Spotting Scope $99.99 Zoom in on the action with this powerful and portable spotting scope! The Orion 20-60x60mm Zoom Spotting Scope features a big, 60mm diameter objective lens which is fully coated with anti-reflection coatings for bright, crisply detailed daytime views. The spotter’s zoom range of 20-60x power lets you get close-up views easily by rotating the eyepiece to adjust the magnification setting. You can use the 20-60x60mm Zoom Spotter on a reasonably clear day to inspect subtle plumage details of birds over 50 feet away, read signs and license plates at over 200 yards, and more. Its near focus distance of approximately 23 feet lets you inspect nearby targets up close. This spotting scope is pleasantly lightweight at just 1.2 lbs. (19oz.), making it a great grab-and-go daytime optical instrument.

Yukon 12-36x50 Spotting Scope Kit $182.85 Yukon Firefall spotting scope is perfect for hunting, camping and other sporting eventsSpotting scope features a practical, yet elegant design for comfort and ease of useOptical device showcases fully multi-coated lenses framed in a durable body constructionFeatures a powerful 12-36x50 optical rangeComfortable rubber eyepiece with quick focus and zoom knobs help you zero-in on your target at short or long distancesIncludes a heavy-duty tripodStows easily and securely into a durable nylon carrying case with shoulder strapNitrogen filled and O-ring sealed ensure 100-percent waterproof, fogproof and dustproof construction

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Barska ACOG Scope/ Optical Holographic Weapon Sight

Where in Toronto can I buy accessories for my Airsoft BB gun?

Most Toronto Canadian Tires sell the guns, but not the accessories, and I have been to a few optical stores and they don't have any scopes there. Where can I find them?! Is there some kind of specialty store in Toronto?

No there are barely any airsoft sites in toronto but you can get it offline. The best sight to get it would be at airsoftgi.com, shortyusa.com, or airsoftatlanta.com. For your sake here are a list of other airsoft sights and their ratings.

Retailer: Rep Voters: Grade
www.21stcenturyairsoft.com -1 1
www.actionhobbies.co.uk 1 1
www.advancedbattlefield.com 4 5
www.advancedbattlefieldsimulation.com 2 2
www.aegarms.com 1 1
www.airgundepot.com 1 1
http://www.airgunwarehouseinc.com 1 1
www.airsoft1.com 14 25 C
www.airsoft128.com 9 15 C
www.airsoftadvantage.com 12 14 A
www.airsoftatlanta.com 59 70 A
www.airsoftarms.com 0 2
www.airsoftdepot.com 1 1
www.airsoftextreme.com 51 60 A
www.airsoftforce.com 1 1
www.airsoftgi.com 177 200 A
www.airsoftglobal.com 1 1
www.airsoftmegastore.com 1 1
www.airsoftnw.com 14 16 A
www.airsoftordnance.com 1 1
www.airsoftoutletnw.com NR 0
www.airsoftrevolution.com 1 1
www.airsoftscotland.com 1 1
www.airsoftshop.com -1 1
www.airsoftsmith.com 3 3
www.airsoft-unlimited.net 4 4
www.airsoft-war4.com NR 0
www.airsplat.com 70 119 C
www.all-battery.com 1 1
www.awsairsoft.com 1 1
www.batteryspace.com 2 2
www.bayairsoft.com 1 1
www.bayunion.com NR 0
www.bdu.com 2 2
www.blazingtoys.com 8 8 A+
www.cheaperthandirt.com 7 7 A+
www.cobraairsoft.com 8 8
www.combatdepot.com 2 2
www.cvata.com 2 2
www.deescustoms.com 13 14 A
www.dentrinity.com 6 6 A+
www.depot53.com 21 23 A
www.eastcoastairsoft.com NR 0
www.ebaybanned.com 6 10 B
http://edgicustom-usa.com/ 5 5 A+
www.ehobbyasia.com 96 106 A
www.empireairsoft.com 3 3
www.endoshoji.com 1 1
www.epowersportsllc.com 1 1
www.evike.com/www.airsoftpost.com 29 116 F
www.extreme-fire.com 1 1
www.flecktarn.co.uk 1 1
www.force-vs-force.com 1 1
www.gamepod.com 3 3
www.goggleoverstock.com 2 2
www.gunnerairsoft.com/catalog/index.php? 11 19 C
www.gunsnguys.com 3 3
www.hammermods.com/Impact.htm 1 1
www.hitguns.com 6 6 A+
www.hobbytron.com -2 16 F
www.hotimporttoys.com 3 3
www.hotspotairsoft.com 21 22 A
www.import-action.com 1 1
www.jungletoy.com NR 0
www.kastwayairsoft.com 10 12 A
www.kapowwe.com 14 18 B
www.kwausa.com 5 5 A+
www.laroysairsoft.com 6 6 A+
www.longislandairsoft.com 1 1
www.matchstickglobal.com 8 10 A
www.mission-airsoft.com 0 2
www.m4airsoft.com 1 6 D
www.nitroairsoft.com 1 11 F
www.onlybatterypacks.com 1 1
www.opsgear.com 3 3
www.optactical.com/ghillieskins.html NR 0
www.oregonairsoftsupply.com 4 4
www.owsairsoft.com 3 5
www.packrat-toyz.com -1 1
www.performanceairsoft.com 2 2
www.poweredgeusa.com 15 15 A+
www.precisionairsoft.com 12 13 A
www.pvairsoft.com NR 0
www.pyramydair.com 14 18 C
www.quanticoarms.com 1 1
www.quanticotactical.com 1 1
www.rangerjoes.com 1 1
www.redwolfairsoft.com 29 32 A
www.rsov.com 10 10 A+
www.SAAirsoft.com 2 2
www.shortyusa.com 21 58 D
www.specialairsoftsupplies.co.uk -1 1
www.speedytoys.com -4 9 F
www.steelhawkairsoft.com 6 6 A+
www.strykeairsoft.com 3 3
www.tacticalairsoftsupply.com 3 3
www.tbehobbies.com/ NR 0
www.tecktoys.us 2 2
www.trinityairsoft.com 48 48 A+
www.uncompany.com 7 15 C-
www.uspatriotstore.com -1 1
www.weaponblender.com 5 5 A+
www.wisconsinairsoftwars.com 1 1
www.wgcshop.com 17 25 B
www.x-fire.org 1 1

Wholesalers: Rep Voters: Grade
www.pointact.com 44 44 A+
www.wholesalecentral.com/paxtradinginc/store.cfm 2 2
www.wholesalecentral.com/globeproductsupply/store.cfm 8 8 A+
www.wholesalecentral.com/airsoftzone/store.cfm 1 4