Searching For Slr Lens ? We"ve Done The Hard Work For You
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 Nikon Quantaray 70 210 mm F4 F56 Macro Telephoto  US $79.99
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 Rokinon 35mm f 14 Lens For Canon Plus UV Filter Bundl US $499.95
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 Olympus Zuiko Auto S 50mm F18 lens with caps and box US $61.00
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 Wide Angle Fisheye Macro lens Canon EOS Rebel T3 T3i T2 T2i XT XTi XS XSi 1100d US $37.95
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 Nikon Zoom Nikkor DX G ED VR 18 mm 105 mm F 35 56G Lens US $162.50
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 Sigma 70 300mm14 56 Sigma DG US $125.00
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How do you compare an SLR lens with an "optical zoom" factor?
I am looking to purchase a new digital camera. I know what I am looking for is in the 10x-12x optical zoom range if it is not an SLR. I also want to consider SLR cameras, but I do not understand how to compare the SLR lenses which are measured in mm to the cameras with have an integer multiple zoom factor. Help!
Times is equal to the ratio of the longest and shortest focal lengths. Take the digital rebel XT. It comes with am 18-55mm kit lens (kit lenses suck for other reasons so you should buy a higher quality lens). That is roughly 3X zoom capability (55/18 = ~3).
Note that the focal length determines how magnified the object is. So when evaluating a lens for how much it is able to bring an object closer to you, it's the higher number that counts.
For example, my Sony DSC-R1 has a 24-120mm lens. This is 5 X zoom capable. However, the amount of magnification this lens provides over the XT is more than double (120 vs 55).
A camera that is higher zoom, does not necessarily have more telephoto capability as a camera with a lower zoom. Look at the focal length.
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Nikon Quantaray 70 210 mm F4 F56 Macro Telephoto US $79.99
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Rokinon 35mm f 14 Lens For Canon Plus UV Filter Bundl US $499.95
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Olympus Zuiko Auto S 50mm F18 lens with caps and box US $61.00
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Wide Angle Fisheye Macro lens Canon EOS Rebel T3 T3i T2 T2i XT XTi XS XSi 1100d US $37.95
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Nikon Zoom Nikkor DX G ED VR 18 mm 105 mm F 35 56G Lens US $162.50
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Sigma 70 300mm14 56 Sigma DG US $125.00
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 Nikon AF Nikkor 50mm f 18D Black Wty Express US $151.28
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 Vivitar Series 1 85mm f 14 F14 Lens for Nikon Camera US $337.00
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 Nikon AF Nikkor 28mm f 28D Black Wty Express US $301.47
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 Tokina AT X 50 250mm f 4 56 Zoom Lens US $49.99
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 Nikon Zoom Nikkor AF G 70 mm 300 mm F 40 56 Lens USED IN MINT CONDITION US $150.00
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 Fisheye Lens Macro NIKON D60 D40X your 18 55mm Lens US $36.95
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 Sigma 150 500mm f 5 APO DG OS HSM Canon XS XSi XTI T2I US $1,069.99
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 Canon EF 24 mm F 28 Lens MINT US $255.00
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 58MM LENS HOODUV FILTERCAPMORE FOR CANON T1i T2i T3i US $10.89
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 Tiffen 72mm Circular Polarizer AUTHORIZED TIFFEN USA DEALER US $68.95
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 SMC Pentax M 50mm f 17 Lens US $29.00
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 ASAHI PENTAX SUPER TAKUMAR 55mm f 18 M42 SCREW MOUNT LENS US $17.50
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 Auto Mamiya Sekor 50mm f 2 prime lens M42 as is US $39.99 |
 Sigma 70 300 14 56 D Camera lens for Nikon US $100.00
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 LEICA Leitz 28mm 28 Elmarit R lens Leicaflex and R SLR German made Excellent US $449.00
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 SIGMA 10 20 35 EX DC HSM Lens for Nikon 202 306 US $649.00
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 Nikon Zoom Nikkor AF G 70 mm 300 mm 4 56 Lens US $149.99
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 SIGMA 10 20mm f 35 EX DC HSM Lens for Sony 202205 US $649.00
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 Nikon AF Nikkor 70 300mm f 4 56G Lens US $149.99
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 77MM 77 Lens neutral density ND2 ND4 ND8 UV CPL filter kit f SLR camera US $30.96
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 Canon EF70 200mm f 28L USM Telephoto Zoom Lens US $911.00
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 Multi coated UV CPL ND2 ND4 ND8 filter kit for camera lens SLR 77MM US $30.96
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 Nikon AF S NIKKOR 300mm f 28G ED VR II Lens US $5,108.95
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 SIGMA 10 20mm f4 56 EX DC HSM for Nikon US $380.00
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