lens
Pro DSLR + Cheapo Lens vs "Cheapo" DSLR + Pro Lens
We got sent a question asking us: What would be better? A pro DSLR with a cheapo lens or a cheapo DSLR with an expensive lens? Well, we thought we'd answer that question in this video by asking two very different photographers to show us what they're like. We tested the Canon 1D Mark IV with a Sigma 28-300mm f/something and a Canon 550D with a 24-70mm f/2.8L. What produces better results? Watch the video to find out. Twitter: twitter.com Facebook: www.facebook.com For the latest updates, visit our Blog: blog.digitalrev.com For more reviews, opinions, helps and tips visit: www.digitalrev.com
How To Apply Contact Lenses
The lenses I use are coloured contacts, NOT for my vision. They're meant for cosplaying, dressing up or just a one-off. They are not meant to be worn constantly. You should ALWAYS check with an optician before purchasing lenses just to make sure they're ok. If you have a history of eye problems, if your eyes are different shapes, of if the lenses just don't feel right DO NOT USE THEM. Always keep your tools clean. I always wash the tweezers after using them and make sure that the lens cases are super clean. I learned at lot of new tips and tricks for this video from Earaness, check him out his makeup is awesome!: www.youtube.com I've said this in the video but I just want to say it again, ALWAYS check with an optician before doing anything with your eyes. What I used: -Contact lenses (single colour grey): www.funkylenses.co.uk -Lens Tweezers can be found on e-Bay :) -(And for those of you asking the earrings here is the seller I bought them from): www.ebay.co.uk Just as a precaution I'm going to paste the FAQ's from the contact lens company I buy my lenses from: Soak your Funky Eyes in solution for at least 2 hours before wearing them. PLEASE DO NOT OVERWEAR. On the first day, wear for no more than 4 hours, you may then increase this by 2 hours each day but never wear them overnight. DO NOT share this product DO NOT let this product dry out. DO NOT wear or use our products if damaged. DO dispose of this product 30 days after opening. FREQUENTLY ASKED QUESTIONS. Q : How do ...
CONTACT LENSES
long awaited video I have more pictures and details where to purchase on my blog iamvonhorror.blogspot.com and my outfit of the day can be viewed here www.youtube.com
Introducing Word Lens
Word Lens -- itunes.apple.com NEW! French/English now available! www.youtube.com Download now on the App Store, and get language packs when you need them using in-app purchase: - French to English (NEW!) - English to French (NEW!) - Spanish to English - English to Spanish Try the demo modes first to get a sense of the technology in action -- reverse or erase Spanish, English, and French words! Check us out at: wordlens.com Now available for iPhone 4S/4/3gs, iPod Touch 4, and iPad 2. Word Lens instantly translates printed words from one language to another using the video camera on your iPhone. No network delay, no roaming fees, and no reception problems. Word Lens is a dictionary -- evolved. It looks up words for you, and shows them in context. You can use Word Lens on your vacations to translate restaurant menus, street signs, and other things that have clearly printed words. Word Lens has its limits. Sometimes the translation will have mistakes, and may be hard to understand, but it usually gets the point across. If a translation fails, there is a way to manually look up words by typing them in. Word Lens does not read very stylized fonts, handwriting, or cursive. Try it, and tell us what you think!
How to Put in and Remove Contact Lenses
Expand the description and view the text of the steps for this how-to video. Check out Howcast for other do-it-yourself videos from dpakman91 and more videos in the Eye Care category. You can contribute too! Create your own DIY guide at www.howcast.com or produce your own Howcast spots with the Howcast Filmmakers Program at www.howcast.com Nothing is worse than having a contact slide under your eyelid. OK, there are worse things. But this is one you easily can avoid. To complete this How-To you will need: Good lighting A sink Unscented soap A mirror Your contact lenses And contact lens wetting solution Good lighting A sink Unscented soap A mirror Your contact lenses And contact lens wetting solution Step 1: Find well-lit mirror Find a well-lit room with a sink and mirror. Tip: Close the drain so that if you drop your contact lens, it won't be washed away. Step 2: Wash your hands Wash your hands with unscented soap. Oils and dirt can not only damage your lenses, but could cause eye infections. Tip: Always put your contact lens in before applying makeup. Step 3: Wet the lens Using your index finger and thumb, pick up one of the lenses and moisturize it with some contact lens wetting solution. Step 4: Position lens Hold the lens on the tip of your index finger the way it will go into your eye —bowl shaped, with the "cup" facing up. Tip: Make sure the lens isn't inside out: If it's a perfect "U" it's fine; if the edges flare out, it needs to be flipped. Step 5: Hold eyelid ...
5200mm Canon Lens World's MOST powerful Super telephoto EF FD (updated upload)
READ!! Canon 5200mm F14 Prime Lens. The world's largest dedicated SLR Super Telephoto lens. Extremely rare. Made in Japan. Most probably a government ordered cold war spy tool - it certainly wasn't designed to just look at the stars with the use of it's ND filters... It uses a mirror & lens combination. The front lens is massive. Rear drop-in filters can be used. •Focal Length: 5150mm •Exposure Control: Light quantity is controlled with the use of built-in ND filters, corresponding to f/14, f/16, f/22, f/32 •Minimum Object Distance: 120 meters (Approx 393 feet!) •Size: 500mm(wide) x 600mm(high) x 1890mm(deep) [20x24x75.6] •Weight: 100kg (220 lbs) without stand. From a Canon Flyer: "This is the only ultra-telephoto lens in the world capable of taking photographs of objects 18 to 32 miles away (30km to 52kms away). Having a focal length of 5200mm, Canon Mirror Lens 5200mm can obtain one hundred times as large an object image as that of a 50mm lens." "For focusing this mounted or fixed lens on an extremely distant object, two aiming telescopes are set on the side of the lens barrel, and the entire lens is placed on a rigid stand which rotates smoothly. Minimizing the overall length had been a big problem in designing this lens. However, the Catadioptric system that is applied to the other two Canon mirror lenses (Canon 800mm f3.8 & 2000mm f11) has succeeded in reducing it down to one third of the nominal focal length. In general focal length and optical aberration increase ...
LED mounted in a contact lens for possible virtual / augmented reality displays
Every so often, internet news aggregator sites run a story about a research group that put an LED into a contact lens, then inserted it into a rabbit's eye. I figured that I would try the same thing, but put the lens into my own eye. I accomplished this by laminating a coil of wire and an 0402 surface-mount LED between two ordinary soft contact lenses. I was hoping the lenses would stick to each other, but they did not, so I ended up fixing the edges together by pinching the plastic together with hot tweezers. This held well enough to capture a minute of video with the LED illuminated in my eye. For video purposes, I mounted the LED facing outward. An actual VR/AR display would have the LED facing inward. I powered the LED by using a very primitive spark-gap transmitter built from a mechanical relay to send RF energy into a larger coil held near my eye. The large coil coupled the energy into the contact lens coil and pulsed the LED. nextbigfuture.com www.cs.uic.edu
Halloween Contact Lenses | Coastal.com
Check out these creepy, scary, freaky and cool contact lenses - perfect for Halloween! Halloween Contacts: www.coastalcontacts.com Some choices: Twilight (Gold Vampire), Banshee, Cat Eyes, Vampire Red, Black Out and more. AboutCoastal Contacts: Coastal Contacts is the largest online retailer of contact lenses and eyeglasses, providing high quality brand name contacts and designer eyeglasses, all delivered to your door for a fraction of the price.
Canon Lens Production 1
Making of Canon L Series 500mm F4L IS USM. Part 1 of 3 in the production of expensive camera gear. L series is Canon's Premium lens line featuring fluorite lenses. IS refers to Image Stabilzation build into the lens, and USM refers to Ultrasonic Motor drive that makes focusing faster than older systems. Currently I'm using a Rebel XT, although I'm thinking of upgrading to an XTi or 5DMk2. This 500 with the New 5D would be a sweet combination. www.razorfantasygirls.com
Yes - Into the Lens
Into the Lens by Yes Steve Howe, Alan White, Chris Squire, Trevor Horn & Geoff Downes Memories, how they fade so fast Look back, that is no escape Tied down, now you see too late. Lovers, they will never wait. I am a camera Take heart, I could never let you go And you, always let the feeling show Love us all, how you never broke your heart You lose them If you feel the feeling start. I am a camera, camera, camera And you, may find time will blind you This to just remind you All is meant to be. There, by the waterside Here, where the lens is wide You and me By the sea Taken in tranquility. Taken, taken so easily To pass into glass reality Transform, to transfer, to energy. Taken, taken, so easily To pass into glass reality Transformer, transferring energy.
Cleaning Your Lens | Lens Care
Basic instruction on how to take care of your lens, made especially for beginners. Brought to you by: www.michaelthementor.com
Physics: optics of lenses and mirrors (1)
Physics: Introduction to geometric optics for lenses and mirrors. Concave, convex, converging, diverging; real, virtual; upright, inverted, magnified, shrunk. Sign conventions for focal length, image distance, object distance, magnification. The lens/mirror equation; the magnification equation. Introduction to ray tracing. This is arecording of a tutoring session, posted with the student's permission. These videos are offered on a "pay-what-you-like" basis. You can pay for the use of the videos at my website: www.freelance-teacher.com For printable documents containing the "handout" and problems discussed in this video series, go to my website. For a list of all the available video series, arranged in suggested viewing order, go to my website. For a playlist containing all the videos in this series, click here: www.youtube.com (1) The lens/mirror equation. Focal length distance, object distance. Convex, concave, diverging, converging (2) Image distance. Real, virtual (3) Continued. Magnified, shrunk (4) Continued. Upright, inverted (5) Continued. Magnification equation (6) Continued. The lens/mirror chart (7) A problem (8) Continued. Ray tracing (9) Continued (10) Another problem (11) Continued tags: educational college student MCAT exam instructional video education
How It's Made: Optical Lenses
This is a step-by-step process in producing common optical lenses. It is a great honor to see this video featured on How-To Geek: www.howtogeek.com
Contact Lenses
ATTITUDE HOLLAND CONTACT LENSES ○ www.attitudeholland.nl I really love Attitude Holland, They're really nice and like to do anything to help. GREAT CUSTOMER SERVICE + SHIPPING! INFO ON LENSES I USED ○ • TERROR EYES FASHION LENSES • Cathedral04 • B . C = 8.6mm • DIA = 14.0mm • POWER = 0.00 • EXP = 12 months after opening. TWITAAAAWWWRR ○ www.twitter.com DAILYBOOOOOTTTHHH ○ dailybooth.com
5 Reasons Why You Need a 50mm lens
A video explaining why you ought to have a 50mm lens in your arsenal. Pricing Reference: Nikon D700 - www.digitalrev.com Nikon 50mm f/1.8G - www.digitalrev.com
THROUGH A BLUE LENS
Constable Al Arsenault shows a slide of a wide-eyed 18-year-old girl taken outside a bar in downtown Vancouver. 'Does she look like a drug addict?' he asks a class of high-school students. When they answer no, the officer shows them the next slide of the same girl, Shannon, six months later. Her face is bruised and covered in festering sores. 'She's on the needle. She didn't know she had an 'addictive personality'. She does now.' The students express their shock and disbelief. Arsenault, along with six other policemen, began video-documenting the people on their beat to create a powerful educational tool to help prevent drug use among young people. This unique group of officers, who formed a non-profit group dubbed the Odd Squad, resulted in an unusual relationship between the police and addicts in Vancouver's Downtown Eastside. Through a Blue Lens tells this moving and compassionate story. In this documentary, addicts talk openly about how they got to the streets. Through their participation in this video, they want to stop others from joining their nightmare.
Flip Ultra HD DIY Lens Hack
A couple of people have asked me how I get the wide-angle interior car shots in some of my videos. Here's a very quickly thrown together (and admittedly very long) video that shows you really how simple it is to modify your Flip Ultra HD or Flip Mino HD with some off the shelf camcorder accessories and some super glue. *UPDATE* A bunch of people have asked about where to find the wide angle lens - I don't work for Best Buy but you can find it on their website here (you can also find a number of perfectly fine lenses at a number of perfectly fine retailers Filmed on a Sony Webbie MHS-CM1 (Note: This will probably void your warranty if you do it to your camera - YOU HAVE BEEN WARNED!)
SOLAR DISTILLED WATER FRESNEL LENS WATER FILTRATION SYSTEM CLEAN DRINKING WATER Solar Distiller.
These Water filtration systems offer an alternative to water damage cause by several causes. This solar distiller can creat water deliver of .5 GPH www.greenpowerscience.com There are a lot of websites that quote the same incorrect information regarding distilled water in soda and mineral leaching. If this were true, and it is not, would be leached and water with sugar, or artificial sweetener would become heavy. If you are concerned, add 10mg Na to each liter. Also, eating food with water, all minerals are mixed with fluid in the stomach converting distilled water into mineral water. Distilled water is not magic, if you add a splash of milk to tea made with distilled water, you now have 10x the calcium of regular mineral water. www.eves-best.com Distilled water is very good for you. The only areas it may cause a problem is developing nations that have near famine conditions. For the rest of the world who usually ingest 15x the sodium recommended, distilled water leaches salt first. ONLY IF you are salt deprived (extremely rare) will distilled water leach excess potassium and or calcium. You would need to drink about 2 gallons in 10 hours for there to be a problem. If heavy sweating, water of any kind is only a thirst quencher or temporary fluid fix. Most people can afford 7 pounds of sweat (near gallon) replaced with only water before electrolytes become an issue. At that point, electrolytes are needed regardless of water type ingested. Mineral water has very small trace ...
World's First Canon 300mm L Lens Cup (real L lens!)
L lenses are rugged things. They don't break easy. But one day last year we took on an intern and he proved us wrong. In this video, we show what can be done with a broken L lens by recycling it into the World's First L lens cup made out of a real L lens. Watch this video to see what happens. Bid for the World's First REAL L lens cup on eBay - 100% of the proceeds will go to the Premier's Disaster Relief Appeal of Australia to help the victims of the Australian Flood: cgi.ebay.com
Relentless Energy Drink fuels Short Stories 2010: Dark Side Of The Lens
Relentless Energy's Short Stories competition beings with 'The Dark Side Of The Lens', a short film from renowned surf photographer Mickey Smith.
New Generation of Solar Fresnel Lens
www.greenpowerscience.com This is the new lens we have been working on. This UV resistant lens has a different surface opposite the Fresnel Side that actually transfers maximum light to the target. This lens is about 25% more powerful than a traditional clear lens.
Fujifilm X-Pro1 Lens Reviews - 18mm f/2, 35mm f/1.4 & 60mm f/2.4 Macro
In this video we take a look at all 3 of the new Fujifilm XF mount lenses for the X-Pro1 camera. We shoot a lady with a box on her head and call it "Danbo". Model featured: J Leong Pricing reference: Fuji 18mm lens: www.digitalrev.com Fuji 35mm lens: www.digitalrev.com Fuji 60mm lens: www.digitalrev.com Fuji X-Pro1: www.digitalrev.com
Carl Zeiss Lenses - "Stress test"
Camera and cine lenses need to operate perfectly in extreme conditions, withstanding everything from scorching heat and bitter cold to sandstorms and severe vibrations. The video shows how Carl Zeiss researchers systematically submit lenses to extreme stresses in order to arrive at findings that can help in future lens design and development. The video was shot with a Sony NEX-FS100 and Carl Zeiss ZF.2 SLR lenses with an F to E mount adapter.
How to Wear Contact Lenses : How to Put In Contact Lenses
Learn how to put in contact lenses in this free eye care video. Expert: Dr. Edward Weaver, Jr. Contact: www.dredwardweaver.com Bio: Dr. Edward Weaver, Jr. has been a practicing optometrist since graduating from the Pennsylvania College of Optometry in 1986. Filmmaker: Reel Media LLC
Canon EF-S 18-200mm IS lens review
Full review at www.cameralabs.com . A seven minute tour around Canon's super-zoom lens for EF-S compatible DSLRs, byGordon Laing, Editor of www.cameralabs.com . For our full review, sample images, results and current pricing, please click the link at the start of this text or visit cameralabs . com. If you have any questions regarding this review, feel free to post on the Cameralabs forum!
Canon Lens Production 3
Making of Canon L Series 500mm F4L IS USM. Part 3 of 3 in the production of expensive camera gear. L series is Canon's Premium lens line featuring fluorite lenses. IS refers to Image Stabilzation build into the lens, and USM refers to Ultrasonic Motor drive that makes focusing faster than older systems. Currently I'm using a Rebel XT, although I'm thinking of upgrading to an XTi or 5DMk2. This 500 with the New 5D would be a sweet combination. www.behance.net
Review: Olloclip 3-in-1 Lens for iPhone 4/4S
Gamefly - gamefly.com Buy the Olloclip - amzn.to Check out my site - tysiphonehelp.com Subscribe to my daily vlog channel - http Follow me for updates: Twitter - twitter.com Facebook - facebook.com Google+ - gplus.to
SOLAR DEATH RAY WATER aqua lens with 1/3 Kilowatt Heat Energy
This is another solar water lens that is almost 30 inches in diameter and can burn through wood quickly. It delivers a very large powerful focal point that is only useful around noon in the summertime when the sun is directly overhead. The material is crystal clear vinyl shower curtain. This lens concentrates about 500 watts of solar heat energy to a focal point of 1 inch optimal with a 3-6 inch scatter.
1200mm Canon 5.6 L Super Telephoto Lens
For this special video we invite Bryan Carnathan of The-Digital-Picture.com to field test the legendary Canon 1200mm 5.6L Super Telephoto lens with B&H maven Zevi Slotkin. 1200mm Lens: www.bhphotovideo.com Canon EF 1200mm f/5.6 L USM Lens Review www.the-digital-picture.com
Canon EF-S 17-85mm IS lens review
Full review at www.cameralabs.com : A four minute video tour around the Canon EF-S 17-85mm IS zoom lens by Gordon Laing, Editor of Cameralabs.com. To see further results and sample images, please visit our full review by clicking the link at the start of this text.
FRESNEL LENS SOLAR HOT WATER, Heat Solar Pool Heater Solar Swimming Pool Heater
greenpowerscience.com This is a large Fresnel Lens focused on a copper tube with a 12 V pump (powered by two 6 watt solar panels) with water circulating through the unit. Water, seven gallons, was raised from 63 F to 106 F in one hour. It is not super efficient as heat is lost at the open top of the glass tank. This is designed to illustrate one method of solar heating a swilling pool with a Large Fresnel Lens. TESTING HDD AQUA BLOCK.
World's Best 50mm lens? Leica Noctilux f/0.95 Review
This is the fastest 50mm lens in production, but the Noctilux has been around for a long time, and so has the cult-like following for this lens. But what is the new version like? Has it lost any of the charm of the f/1.0? Watch the review to see if this really could be considered one of the best 50mm lenses. Pricing Reference: www.digitalrev.com Sample shots on our Flickr page: www.flickr.com
My Contact Lenses
My Contact Lenses: Wearing in the video: eye2eyecontactz No:1 Sky www.eye2eyecontactz.co.uk Contact Lenses no:2: Dream Colour Lenz sf14 BLUE www.dreamzfashions.co.uk Contact Lenses no:3 eye2eyecontactz No:3 Aqua www.eye2eyecontactz.co.uk Cleaning Solutions: Sterile Saline Solution - Boots AO Sept Solution - Boots * Free Solution bottle and contact lens case provided * Contact Lenses can be found at your local Afro/ Caribbean hair store, contact lenses are also stocked in some local pharmacy's
Intraocular Lens Implant
Intraocular lenses, commonly called IOLs, may be one of the most important ophthalmic developments in the past 30 years. These tiny prescription lenses are placed inside the eye during cataract or Clear Lens Extraction And Replacement surgery (CLEAR), replacing the eye's natural lens (called a cataract when it becomes clouded).
Le Midget's Contact Lenses: Collection
My collection of pictures and mini reviews on the brands I've worn in the past. Part 2: Ordering www.youtube.com Some pix + how to order: dirtontherocks.blogspot.com
Carl Zeiss Lenses - Distagon T* 2/25
Michael Schiehlen, Sales Director at Carl Zeiss, introduces the new high speed, wide angle lens Distagon T* 2/25.
Pancake Day Pancake Lens Test
It's around the time of the most special day in February - it's pancake day! So, we've decided to review some pancakes (lenses) while cooking pancakes. Pricing Reference: Sony - www.digitalrev.com Olympus - www.digitalrev.com Panasonic - www.digitalrev.com Pentax - www.digitalrev.com
Leica Lenses (English)
Every Leica lens is hand-crafted and goes through meticulous manufacturing processes to uphold the quality and precision that Leica defines and customers have come to expect. In the age where technology almost inevitably means mass manufacturing, Leica products are still made with exacting precision by the hands of highly-trained technicians. This video gives you a behind-the-scenes look at the craftsmanship and making of Leica lenses in the production facilities of Leica Camera AG.
Depth of Field and Lens effects.
Linco Studio educational tutorial series: Depth of Field and Lens effects. This video will introduce how Depth of Field works within the video the professor will show how fixed lens and zoom lens have different effect of DOF. This video will help the viewer have better understanding how Depth of Field works and how it can be applied to viewers project to improve level of professionalism.
The Eye, Focus and Optical Lens
How the Eye focuses light on the Retina. Explanation of Short and Long-sightedness
How to Wear Contact Lenses : How to Remove Contact Lenses
Learn how to remove contact lenses in this free eye care video. Expert: Dr. Edward Weaver, Jr. Contact: www.dredwardweaver.com Bio: Dr. Edward Weaver, Jr. has been a practicing optometrist since graduating from the Pennsylvania College of Optometry in 1986. Filmmaker: Reel Media LLC
Battle of L vs non-L lens: Canon 100mm f/2.8 Macro
It's a commonly asked question: what is so special about L lenses? In this video, we compare the Canon 100mm f/2.8L Macro vs the Canon 100mm f/2.8 Macro. The L is all the difference in name but what does that mean in terms of what you get for your money? Canon 100mm f/2.8 L Macro IS USM: www.digitalrev.com Canon 100mm f/2.8 Macro USM: www.digitalrev.com
FRESNEL LENS SOLAR FOUNDRY MELTING STEEL SUN USING A LARGE Solar "Death Ray"
www.greenpowerscience.com 45" Fresnel Lens in action. This newer type of lens can reach 2700˚ or 1500c in a few seconds. The brick also aids in heat storage. 281 of 325
Extra Lenses for Your iPhone!
GeekBeatTV #220: revision3.com Stretch you photographic creativity with additional lenses for you iPhone's camera, dumbbells that vibrate to intensify your workout, a light switch cover that will hold your keys, and an easy way to never forget a file at home! OlloClip iPhone Lenses The iPhone camera can take some pretty nice pictures, but that fixed lens can be limiting. The OlloClip lets you experiment with a few new ones! geekbeat.tv BodyVib Dumbbells These dumbbells vibrate when you grab them, making your muscles work harder and intensifying your workout. www.ohgizmo.com Sponsored by JackThreads Hey guys, want to shop for clothes from your computer? Head on over to JackThreads and try them out. They can save you up to 80% on popular brands. JackThreads.com Magnetic Light Switch Cover This light switch cover holds your keys magnetically, right by the door, so you'll never lose them. www.ohgizmo.com iTwin Looking for a simple and secure way to connect two computers across the Internet without using cloud storage? The iTwin makes it easy. geekbeat.tv Twitter twitter.com Facebook facebook.com Cali on Twitter twitter.com What was your favorite gadget from today's episode? Hey geekers ... THANKS for watching!
Nokia City Lens for Nokia Lumia: Augmented Reality Browser (Beta)
Nokia City Lens nokia.ly instantly connects you to all of the places you're looking for—and even more importantly—gets you there exactly when and how you want to. Now available on Nokia Betalabs. Just landed in town and looking for a good restaurant? Interested in checking out the local museum or theater? Time to hit the nearest transit station to catch a ride uptown? No longer is finding your chosen destination a hassle—whether you're in a new city or your hometown. Now you can simply launch Nokia City Lens on your phone to easily find all the places you want to go. City Lens instantly reveals what you're looking for on your phone's camera display, no matter if it's down the street or just around the corner. You simply tap your chosen destination on your screen to conveniently access walking directions, make a reservation, or learn more detailed information about the locale.
DigitalRev Lens Image Stabilisation Video Test
Recently, we got a letter from some guy asking us whether Image Stabilisation on a lens really improves the stability of the movies that he wants to make. What's more, he plans to put his HDSLR on the front of his car, so he wants to know how it will perform when used with a reasonably fast moving object. As we don't like to come up with simple "yes" or "no" answers, we've devised a rather not so simple test. Watch the video to find out what happens.
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