Zoom Lense

What is the difference between a 85mm-17 and a 18-55mm. How much zoom is one than the other?
The 1917-1985 (5x zoom) obviously has more zoom range of 18-55mm (3x zoom). But I bet it is less bright (lower maximum aperture). Zoom Lens with wide, also tend to have a greater depth of field. Depending on your photographic needs, this can be good or bad.
adams apple iphone store zoom lens UNBOXING TEST 3gs
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Canon HJ11ex4.7B ITS-ME 2/3″ 11x HDTV Zoom Lens with Servo Zoom 2x Extender £6,962.91 |
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Angenieux 7-81mm HR T2.4 S16mm Zoom Lens PL-Mount £5,063.93 |
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Brand New SANYO LNS-T03 Long Zoom Lens £4,936.70 |
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Canon HJ18X7.8B IRS HD High Definition Broadcast HDTV 18x Zoom Lens £4,747.44 |
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Canon KJ16EX7.7B-IRSE 7.7-124mm f/1.8 HDGC 2/3″ 16x Broadcast Zoom Lens £4,494.24 |
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Fujinon A44×9.5 Sony Mount Sports Zoom Lens £4,430.31 |
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Canon KJ16EX7.7B KRSD PS12 7.7-123mm f/1.8 2/3″ HDGC Broadcast Zoom Lens £4,304.34 |
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Fujinon HA20×7.5 BEVM-G28 HD High Definition Zoom Lens £4,114.44 |
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Canon 5D Mark II Camera w/ SmallHD DP1x Monitor & L Series 24-105 Lens, Zoom H4N £3,037.73 |
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FUJINON 4.8 X 10 WIDE ANGLE LENS WITH DOUBLER, MEMORY ZOOM AND SPEED CONTROL £2,750.00 |
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136-955 Sigma EX – Telephoto zoom lens – 120 mm – 300 m £2,615.22 |
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136-954 Sigma EX – Telephoto zoom lens – 120 mm – 300 m £2,615.22 |
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Sony HVR-Z7E Camcorder W x8 Carl Zeiss Wide Angle Zoom Lens (24-192mm),Near Mint £2,500.00 |
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2751B005 Canon EF – Telephoto zoom lens – 70 mm – 200 m £2,393.99 |
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Fujinon ESB-51+EPA-2+ESM-51 focus/zoom controls kit for studio box lens, Canon £2,262.94 |
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Canon KH19×6.7 KAS SY14 19x HD Remote Motor Drive Zoom Lens w/ PMW-EX3 Adapter £2,215.47 |
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Nikon Zoom-Nikkor ED 180-600mm 1:8.0 Pre-AI Lens 600 8.0 f8 f8.0 f/8.0 £2,214.84 |
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NEC NP4000 DLP Projector 5200 Ansi Lumens 2100: 1 Contrast, NEC NP08ZL Zoom Lens £2,200.00 |
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JAA807DA Nikon Zoom-Nikkor – Telephoto zoom lens – 70 m £2,199.41 |
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2751B005 – Canon EF telephoto zoom lens – 70 mm – 200 £2,127.99 |
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Camera Lens Mug/Lens Coffee Cup(Creative cup design is simulation to Canon EF 24-70mm 1:1F/4L IS USM telescopic Lens / Stainless Steel Mug Interior /(Latest Zoom Version) £11.99 Camera Lens Mug/Lens Coffee Cup(Creative cup design is simulation to Canon EF 24-70mm 1:1F/4L IS USM telescopic Lens / Stainless Steel Mug Interior /(Latest Zoom Version)> zoomable lens cup EF 24-70mm 1:1F/4L IS USM with lid Includes a soft travel bag Stainless Steel Thermos Interior Suitable for hot and cold beverages…. |
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8X Optical Zoom Telescope Camera Lens For Apple iPhone 4s 4 with Tripod £24.99 Perfect tripod and 8x zoom telescope for your beloved iphone4! High quality telescoping tripod! This Lens is especially designed for iPhone 4/4S. As a telescope Lens, it can enlarge the capacity of your iPhone camera’s shooting ability. You can take photos for farther distance sight views…. |