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 Sigma 18 mm 250 mm F 35 63 HSM Aspherical OS AF DC Lens For Nikon $330.25 (3 Bids) Time Remaining: 2h 14m |
 Sigma 17 50mm f 28 EX DC OS HSM Lens for Nikon DSLR $599.00 Time Remaining: 21d 16h 34m Buy It Now for only: $599.00 |
 SIGMA ZOOM 24 70mm D EX ASPHERICAL LENS FOR NIKON $359.99 Time Remaining: 2h 21m |
 Sigma 17 70mm F 28 4 HSM DC OS AF Lens For Nikon $329.00 Time Remaining: 29d 8h 2m Buy It Now for only: $329.00 |
 Sigma 85mm 14 f 14 Lens Nikon Mount $565.00 (13 Bids) Time Remaining: 2h 45m |
 Sigma 18 200mm f 35 63 II DC Lens for Nikon + Kit NEW $319.97 Time Remaining: 28d 19h 45m Buy It Now for only: $319.97 |
 Sigma EX 85 mm F 14 HSM SLD DG Lens For Nikon MINT $771.00 (8 Bids) Time Remaining: 3h 16m |
 Sigma 70 300mm f 4 56 SLD DG Macro Lens for Nikon DSLRs Lens Kit Bundle $169.00 Time Remaining: 15d 3h 59m Buy It Now for only: $169.00 |
 Sigma 50mm f 28 DG EX Macro Lens For Nikon $269.99 Time Remaining: 5h 27m Buy It Now for only: $300.00 |
 Sigma 28 80mm f 35 56 Aspherical Lens for Nikon SLR Cameras 0159 $59.99 Time Remaining: 29d 21h 26m Buy It Now for only: $59.99 |
 Sigma 10 20mm f 35 EX DC HSM Nikon Digital SLR Camera Lens with Tiffen Filter $455.00 (28 Bids) Time Remaining: 5h 32m |
 Sigma EX DC APO HSM 50 mm 150 mm F 28 Lens For NIKON $699.00 Time Remaining: 28d 17h 9m Buy It Now for only: $699.00 |
 Sigma 70 250 mm F 35 45 Zoom Tele Lens For Nikon SLR manual focus + + $19.99 Time Remaining: 7h 33m Buy It Now for only: $49.99 |
 Sigma 18 mm 200 mm F 35 63 HSM SLD OS Aspherical DC Lens For Nikon $300.00 Time Remaining: 9h 17m Buy It Now for only: $340.00 |
 NEW SIGMA 18 200mm f 35 63 DC FOR NIKON BULK NO BOX $269.99 Time Remaining: 26d 10h 1m Buy It Now for only: $269.99 |
 Sigma XQ High Power Zoom Lens Lense 145 70mm 230mm For Nikon $42.00 (1 Bid) Time Remaining: 14h 44m |
 Sigma 18 200mm f 35 63 II DC AF Lens for Nikon Digital SLR 18 200 mm $349.00 Time Remaining: 28d 1h 7m Buy It Now for only: $349.00 |
 Sigma 17 mm 70 mm F 28 45 Lens Nikon Macro HSM $249.99 Time Remaining: 18h 33m |
 Sigma 70mm 300m f4 56 DLM DG Motorized Macro Tele Lens f Nikon AF D 5A9306 $169.00 Time Remaining: 29d 21h 26m Buy It Now for only: $169.00 |
 Sigma DC EX 18 50mm F 28 Lens Nikon Broken zoom ring for parts good glass $15.50 (7 Bids) Time Remaining: 20h 16m |
 Sigma 18 200mm F35 63 II DC OS HSM Zoom Lens for Nikon DSLRs Lens Kit Bundle $399.00 Time Remaining: 13d 3h 59m Buy It Now for only: $399.00 |
 SIGMA 50 mm F28 DG MACRO NIKON MOUNT $120.00 (1 Bid) Time Remaining: 20h 35m |
 Sigma 70 300mm f 4 56 SLD DG Macro Lens for Nikon DSLRs Lens Kit Bundle $169.00 Time Remaining: 15d 6h 39m Buy It Now for only: $169.00 |
 Sigma EX HSM Aspherical 14 mm 14 mm 28 Lens For Nikon $450.00 Time Remaining: 23h 7m |
 Sigma 24 70mm f 28 EX DG IF HSM Lens for Nikon SLR $824.00 Time Remaining: 19h 14m Buy It Now for only: $824.00 |
 SIGMA 55 200mm f4 56 DC OS for Nikon $250.00 Time Remaining: 23h 16m Buy It Now for only: $275.00 |
 Sigma DC 55 mm 200 mm F 40 56 Lens For Nikon $135.00 Time Remaining: 23h 19m Buy It Now for only: $149.00 |
 SIGMA APO 50 200MM 35 45 ZOOM LENS NIKON AIS MOUNT $199.00 Time Remaining: 14d 6h 50m Buy It Now for only: $199.00 |
 Sigma 70 mm 300 mm F 40 56 Motorized DG Lens For Nikon $140.00 Time Remaining: 23h 22m Buy It Now for only: $154.00 |
 Sigma 150 500mm f 5 63 APO DG OS HSM for Nikon+1 Year Warranty $989.00 Time Remaining: 4d 12h 19m Buy It Now for only: $989.00 |
 SIGMA 55 200mm f4 56 DC OS for Nikon $250.00 Time Remaining: 23h 23m Buy It Now for only: $275.00 |
 Sigma 18 200mm F35 63 II DC OS HSM Zoom Lens for Nikon DSLRs Lens Kit Bundle $399.00 Time Remaining: 13d 6h 52m Buy It Now for only: $399.00 |
 Sigma 75 210mm f 35 45 Zoom K III for Nikon Ai S $40.00 Time Remaining: 23h 47m |
 Sigma 18 50mm F28 EX DC Macro for Nikon $250.00 Time Remaining: 29d 7h Buy It Now for only: $250.00 |
 Sigma 170 500mm f 5 63 APO Aspherical Lens for Nikon SLR Cameras $142.50 (9 Bids) Time Remaining: 1d 1h 46m Buy It Now for only: $749.00 |
 Sigma Nikon 18mm XQ F 32 non Ai manual focus ultra wide lens $199.95 Time Remaining: 9d 8h 15m Buy It Now for only: $199.95 |
 Sigma EX DG Aspherical RF 20 mm F 18 Lens For Nikon $102.50 (7 Bids) Time Remaining: 1d 1h 54m |
 SIGMA 35 70MM F28 4 MC LENS F NIKON $24.80 Time Remaining: 28d 16h 42m Buy It Now for only: $24.80 |
 Sigma 28mm 28 mm F 18 high speed wide Aspherical Lens for Nikon AF $189.00 Time Remaining: 1d 2h 47m Buy It Now for only: $220.00 |
 Sigma EX DG Aspherical IF 28 mm 70 mm F 28 Lens For Nikon $250.00 (1 Bid) Time Remaining: 1d 4h 11m |
 Sigma 17 50mm f 28 EX DC OS HSM FLD Zoom Lens for Nikon DSLR Camera Pro Lens $699.00 Time Remaining: 15d 6h 39m Buy It Now for only: $699.00 |
 Sigma 70 300mm APO DG Macro F 4 56 for Nikon $44.00 (12 Bids) Time Remaining: 1d 5h 16m |
 SIGMA 12MM F8 FISH EYE IN NIKON T MOUNT WITH CAPS $179.99 Time Remaining: 28d 22h 14m Buy It Now for only: $179.99 |
 Sigma 18 50mm f 28 EX DC HSM Macro Lens for Nikon DSLR $122.50 (4 Bids) Time Remaining: 1d 7h 18m |
 Sigma 18 200mm f 35 56 D DC Zoom Lens For Nikon $215.00 Time Remaining: 1d 10h 39m Buy It Now for only: $215.00 |
 Sigma EX DG 24 70mm F28 Macro Lens for Nikon $127.50 (9 Bids) Time Remaining: 1d 7h 26m |
 Brand New Sigma 10mm f 28 EX DC HSM Fisheye for Nikon UPC 0085126477554 $632.05 Time Remaining: 9d 15h 10m Buy It Now for only: $632.05 |
 Sigma EX 30 mm F 14 Lens For Nikon $210.51 (18 Bids) Time Remaining: 1d 7h 31m |
 Sigma 50 200mm f 4 56 DC OS HSM for Nikon SLR 686 306 $159.00 Time Remaining: 19h 11m Buy It Now for only: $159.00 |
 72 SIGMA ZOOM 28 200mm 135 56 DL HYPERZOOM MACRO LENS NIKON 1 $89.99 Time Remaining: 1d 8h 11m |
 Sigma AF EX 2X APO Teleconverter for Nikon MINT $175.00 Time Remaining: 1d 11h 9m Buy It Now for only: $200.00 |
 Sigma 70 300mm D Macro Zoom Lens for Nikon $129.95 Time Remaining: 20d 18h 54m Buy It Now for only: $129.95 |
 Sigma APO 400 mm f 56 Lens For Nikon And 14 Tele Converter $400.00 Time Remaining: 1d 15h 52m |
 SIGMA 70mm F28 EX DG MACRO LENSE NEW IN BOX FOR NIKON $499.99 Time Remaining: 29d 6h 8m Buy It Now for only: $499.99 |
 Sigma EX DG HSM 50 mm F 14 Lens For Nikon $399.00 Time Remaining: 1d 16h 23m Buy It Now for only: $499.00 |
 Brand New Sigma APO 150 500mm F5 63 DG OS HSM for Nikon UPC 085126737559 $995.61 Time Remaining: 6d 15h 19m Buy It Now for only: $995.61 |
 Sigma 50 500mm 14 63 APO DG HSM D Lens For Nikon EXCELLENT CONDITION $610.00 (10 Bids) Time Remaining: 1d 18h 19m |
 SIGMA 50MM F 28 MACRO NIKON AI SHARP +CANON EOS ADAPTOR T2I T3 40D 7D 60D 5D $169.00 Time Remaining: 6d 20h 3m Buy It Now for only: $169.00 |
 Sigma DL 100 mm 300 mm F 45 67 Lens For Nikon $40.00 Time Remaining: 1d 20h 17m |
 Sigma 17 70mm f 28 4 DC Macro OS HSM Lens for Nikon DSLR Camera Lens Kit Bundle $469.00 Time Remaining: 9d 7h 58m Buy It Now for only: $469.00 |
 Sigma 70 210mm f45 K II Zoom for Pentax $10.00 Time Remaining: 1d 22h 7m Buy It Now for only: $30.00 |
 Sigma 24 70mm F28 IF EX DG HSM Lens for Nikon AF Lens Kit Bundle $824.00 Time Remaining: 23d 12h 3m Buy It Now for only: $824.00 |
 Sigma Super Wide II 24mm f28 MC For Nikon AF READ $99.00 Time Remaining: 1d 23h 5m |
 Sigma EX Macro 50 mm F 28 Lens For Nikon $100.00 Time Remaining: 2d 36m Buy It Now for only: $200.00 |
 Sigma 17 50mm f 28 EX DC OS HSM FLD Zoom Lens for Nikon DSLR Lens Kit Bundle $669.00 Time Remaining: 15d 6h 39m Buy It Now for only: $669.00 |
 Sigma 10mm F28 EX DC HSM Fisheye Lens for Nikon Digital SLR $97.88 (5 Bids) Time Remaining: 2d 1h 11m Buy It Now for only: $499.00 |
 Sigma 18mm 50mm f 28 45 DC OS HSM Lens for Nikon DSLRs 861 306 $199.00 Time Remaining: 22d 17h 43m Buy It Now for only: $199.00 |
 Sigma 70 210mm APO f 28 lens for Nikon Lenses $198.16 (8 Bids) Time Remaining: 2d 2h 16m |
 Sigma 8 mm 16 mm F 45 56 AF DC Lens For Nikon $600.00 Time Remaining: 6d 10h 46m Buy It Now for only: $600.00 |
 Sigma EX DG HSM Aspherical 24 mm 70 mm F 28 Lens For Nikon $698.00 (21 Bids) Time Remaining: 2d 4h 34m |
 Sigma EX DG APO MACRO HSM 70 mm 200 mm 28 Lens For Nikon $922.99 Time Remaining: 5d 23h 26m Buy It Now for only: $922.99 |
 Sigma 70 mm 300 mm F 40 56D Lens For Nikon $76.00 Time Remaining: 2d 4h 56m |
 Sigma 18 250mm f 35 63 DC OS HSM Autofocus Zoom Lens Nikon 880306 BRAND NEW $469.99 Time Remaining: 11d 1h 37m Buy It Now for only: $469.99 |
 Telephoto and Wide Angle zoom Lenses Nikon mount $25.00 (1 Bid) Time Remaining: 2d 5h 14m |
 Sigma Zoom 28 90mm 135 56 Macro Lens $40.00 Time Remaining: 11d 1h 49m Buy It Now for only: $40.00 |
 SIGMA 50 500mm f45 63 APO HSM DG OS for Nikon $972.56 Time Remaining: 2d 5h 20m |
 Sigma EX 256306 105 mm F 28 Lens For Nikon $152.50 (10 Bids) Time Remaining: 2d 5h 32m |
 Sigma 10 20mm f 4 56 EX DC HSM Lens for Nikon DSLR 0999 $429.99 Time Remaining: 20d 9h 13m Buy It Now for only: $429.99 |
 Sigma EX 50 mm F 14 DG HSM AF Lens For Nikon $400.00 Time Remaining: 2d 6h 18m |
 Sigma EX 85 mm F 14 HSM SLD DG Lens For Nikon $749.99 Time Remaining: 3d 23h 57m Buy It Now for only: $749.99 |
 Sigma 28 105mm Aspherical f 28 4 Camera Lens for Nikon $52.23 (5 Bids) Time Remaining: 2d 8h 4m |
 Sigma 70 mm F 28 Lens For Nikon with B+W UV filter $365.00 Time Remaining: 4d 23h 50m Buy It Now for only: $365.00 |
 SIGMA 100 200mm 145 Zoom Lens for Nikon Mint with case and Cap LOOK $9.00 Time Remaining: 2d 8h 48m |
 Sigma 14x EX DG Auto Focus APO Extender f Nikon NEW $249.00 Time Remaining: 4d 6h 40m Buy It Now for only: $249.00 |
 SIGMA DL 70 300mm LENS 140 56D SUPER ZOOM For Nikon DSLR $46.00 (3 Bids) Time Remaining: 2d 8h 49m Buy It Now for only: $120.00 |
 Brand New Sigma 18 250mm f 35 63 DC OS HSM w Motor for Nikon 0085126880552 $502.99 Time Remaining: 9d 15h 10m Buy It Now for only: $502.99 |
 Sigma 50 mm 150 mm APO DC HSM F 28 Lens For Nikon $395.00 (2 Bids) Time Remaining: 2d 10h 3m |
 Sigma 10 20mm f 4 56 EX DC HSM AF Lens for Nikon SLR $479.00 Time Remaining: 19h 18m Buy It Now for only: $479.00 |
 SIGMA AF E 28 70mm 35 45 MULTI COATED LENS FOR NIKON $24.99 Time Remaining: 2d 10h 47m |
 No365 SIGMA 105mm F28 D EX MACRO for Nikon Japanese lens w food case New $350.00 Time Remaining: 2d 11h 6m Buy It Now for only: $400.00 |
 Sigma LENS 70 mm 250 mm F 35 45 Lens For Nikon Minolta $41.99 Time Remaining: 21d 21h 12m Buy It Now for only: $41.99 |
 Sigma EX DG Aspherical RF 20 mm F 18 Lens For Nikon EU shipping $360.00 Time Remaining: 2d 18h 2m Buy It Now for only: $400.00 |
 Brand New Sigma 70 300mm f 4 56 DG Macro w Motor for Nikon UPC 085126509552 $190.78 Time Remaining: 7d 15h 55m Buy It Now for only: $190.78 |
 Sigma EX DF Aspherical 28 mm 70 mm F 28 Lens For Nikon $150.00 (10 Bids) Time Remaining: 2d 18h 13m |
 Sigma 70 200mm f 28 f28 EX DG APO OS HSM for Nikon+1 Year Warranty $1,239.00 Time Remaining: 14d 12h 37m Buy It Now for only: $1,239.00 |
 Sigma 135 400 Nikon Mount D Lens F 45 56 $141.50 (6 Bids) Time Remaining: 2d 18h 30m |
 Sigma 90mm f 28 Macro Camera Lens for Nikon Ai S SN 2001173 $199.99 Time Remaining: 15d 7h Buy It Now for only: $199.99 |
 POCKET ROCKET Sigma DC 18 mm 125 mm F 35 56 Lens Nikon MINT $26.00 (4 Bids) Time Remaining: 2d 21h 43m |
 Sigma 70 300mm f 4 56 DG Macro Autofocus Lens for Nikon D40 D60 D90 D3000 D7000 $169.00 Time Remaining: 20d 20h 46m Buy It Now for only: $169.00 |
 Sigma DC 18 mm 50 mm F 35 56 Lens for Nikon $24.99 Time Remaining: 2d 22h 59m |
Does the Nikkor 18-200mm VR lens or Sigma 18-200mm OS lens autofocus on the Nikon D40x DSLR camera?
photography
auto focus
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nikkor 18-200mm VR
sigma 18-200mm OS
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action shots
Both the Nikon 18-200 VR and the Sigma 18-200mm OS lenses will autofocus with the D40x.
Both lenses have a built-in focusing motor, the Nikon has AF-S, while Sigma has HSM (hypersonic motor).
Here's Sigma's webpage for their lens:
http://www.sigmaphoto.com/lenses/lenses_all_details.asp?id=3324&navigator=6
The Nikon lens will likely have better optical performance, but of course it will also have a price that's pretty high as well. I checked prices on pricegrabber and it's selling for $644 at us1camera.com
The Sigma lens is selling at buydig.com for $429.
Essentially, if you can afford the additional $215, it's worth it. But if you can't, you won't be unhappy with the Sigma. Sigma makes some high quality lenses, including lenses for which there is no Nikon equivalent.
I won't tell you how to spend YOUR money; I will simply answer your question and tell you that both lenses will autofocus on the D40x and that the Nikon costs a bit more, but that the Sigma is a decent lens for the money. You won't make as much if you resell the lens, but honestly, I plan on keeping my lenses, so I don't buy them to resell.
Another thought: if the Sigma is what you can afford now, you can get it and be taking images. How much is that worth to you versus saving up for the Nikon and waiting to take images? Me, I'd ge the Nikon but that's because 1) i can afford it and 2) I have lenses to cover that focal length. And in point of fact, I just bought a Sigma 18-200 (non-OS) for $110 off eBay, to give to my nephew who is just starting out. I think he's going to be pretty happy (as will I, because I only spent $110).
NIkon 80-200 vs sigma 70-200: Lens Recommendations