Camera SLR Lenses

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We'll talk about how to use zoom lenses and telephoto lenses. We'll look at some of the benefits and drawbacks of zoom lenses, such as the weight. Still, zoom lenses are invaluable to photographers using them @ butterscotch bit.ly

Hello, Right now I am going to be giving you a review on the Sigma 70-300mm f/4-4.6 APO DG MACRO Telephoto lens (Nikon Mount) In this video I give a review of the over all quality of the lens, and how quick the lens focuses on a Nikon D300 in both Macro and Normal mode. Like I said in the video, this lens is absolutely amazing for the price. I really do like it. It has great quality and has many uses all in a single and affordable lens package. Here is the link the B&H Photo Video to further look into this video! www.bhphotovideo.com Thanks for watching, chargerfun34

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

An introduction to using long or telephoto dslr camera lenses. Lots of people have asked to have camera lenses explained and this is just one of our videos which will help you understand all about them. Long or telephoto camera lenses have unique characteristics which make them better for certain types of image because of they way they make a photo look, NOT just because they make far off things come closer. It's all about understanding focal lengths - www.photographycourses.biz - and how they change three things in the image which you can use creatively for stunning images. Mike Browne

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 ...

www.robnunnphoto.com This is an underrated lens, and a great partner to the standard 18-55 kit lens that comes with most Canon cameras. It is light, sharp, and reasonably priced, plus the image stabilization will help you out in low light situations. Recommended! Thanks, Rob.