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  • Sigm 28-300mm F3.5-6.3 DG MACRO
    Standard Zoom Telephoto Zoom Macro Wide Angle Zoom Pentax Wide Angle 645 Macro Standard Zoom Wide Angle Zoom Telephoto Standard Wide Angle Telephoto 645 Standard 645 Telephoto Zoom Sigma Wide Angle Macro Wide Angle Zoom Standard Zoom Telephoto Telephoto Zoom Sony Minolta Wide Angle Standard Telephoto Macro Wide Angle Zoom Standard Zoom Telephoto Zoom Tamron Wide Angle Macro Wide Angle Zoom Standard Zoom Telephoto Zoom Telephoto Tokina Wide Angle Standard

    Original URL path: http://slrlensreview.com/web/reviews/sigma/sigma-standard-zoom/169-sigm-28-300mm-f35-63-dg-macro (2016-02-18)
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  • Sigma 18-200mm F3.5-6.3 DC Lens Review
    and Sony mounts Summary Lens Composition 15 elements in 13 groups Angular Field 69 7 degrees Minimum Focus 45cm 17 7in Focusing Action AF MF f stop Scale f 3 5 f 22 camera controlled Filter Size 62mm Lens Hood Petal shaped included Weight 405g 14 4oz Dimensions 70x78mm 2 8x3 1 Lens Case None Field Tests Sigma 18 200mm f 3 5 6 3 DC was average in the field Vignetting was mostly under control except at 18mm where you might want to stop down to achieve best results Chromatic aberration persisted throughout the zoom range primarily around borders The lens produced best results in the 18 50mm focal length range Both center and borders in this zoom range were reasonably sharp quite a surprise for me From 50mm to the telephoto side of the zoom things started to fall apart with borders suffering most At 200mm the lens was noticeably soft both around borders and in the center and stopping down did not seem to help much which was quite disappointing As with most lenses with wide angle of view Sigma produced quite noticeable barrel distortion around 18mm Artifacts started to disappear at 35mm and up The biggest disappointment however was the auto focus which was consistently hunting especially around 200mm and not only in low light conditions Another disappointment was with the extendable barrel the dual cams would collapse under their own weight whenever I pointed the lens up any angle over 60 degree would do the trick Mind this issue whenever shooting under an angle Finally throughout my tests I noticed that the lens would produce images that are somewhat warmer then usual not that I would complain about it but some users might find it less acceptable On a positive side the extreme zoom coverage of the lens was quite useful in some situations and I did not have to change lenses as often in order to go from a wide landscape type range to telephoto portrait type photography One of these days lens manufacturers will finally figure out how to make lensed that cover everything from ultra wide to super tepephoto and are also sharp throughout the supported focal length But until that day comes I d be using lenses with more conservative zoom to achieve better results Title Title Title View the embedded image gallery online at http slrlensreview com web reviews sigma sigma standard zoom 175 sigma 18 200mm f35 63 dc lens review sigProGalleria3856189b9c Lab Tests The lens showed mixed results in the lab Center was very sharp from 18mm to 50mm bu then started to deteriorate rather quickly and at the telephoto side of the zoom was less then satisfactory Unfortunately quality of borders suffered throughout the zoom range but at 200mm were absolutely dismal You would get best results between 18 35mm where the lens is sharpest stopped down to f 8 or f 11 Here you could get very good quality 11in and decent 16in prints Conclusion Not

    Original URL path: http://slrlensreview.com/web/reviews/sigma/sigma-standard-zoom/175-sigma-18-200mm-f35-63-dc-lens-review (2016-02-18)
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  • Sigma 28-200mm F3.5-5.6 DG MACRO
    Standard Zoom Telephoto Zoom Macro Wide Angle Zoom Pentax Wide Angle 645 Macro Standard Zoom Wide Angle Zoom Telephoto Standard Wide Angle Telephoto 645 Standard 645 Telephoto Zoom Sigma Wide Angle Macro Wide Angle Zoom Standard Zoom Telephoto Telephoto Zoom Sony Minolta Wide Angle Standard Telephoto Macro Wide Angle Zoom Standard Zoom Telephoto Zoom Tamron Wide Angle Macro Wide Angle Zoom Standard Zoom Telephoto Zoom Telephoto Tokina Wide Angle Standard

    Original URL path: http://slrlensreview.com/web/reviews/sigma/sigma-standard-zoom/168-sigma-28-200mm-f35-56-dg-macro (2016-02-18)
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  • Sigma APO 300mm F2.8 EX DG HSM
    content Jump to main navigation and login Nav view search Navigation Search Sigma APO 300mm F2 8 EX DG HSM Details Last Updated on Wednesday 03 June 2009 18 12

    Original URL path: http://slrlensreview.com/web/reviews/sigma/sigma-telephoto/145-sigma-apo-300mm-f28-ex-dg-hsm (2016-02-18)
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  • Sigma APO 100-300mm F4 EX DG HSM Lens Review
    cards Summary Lens Composition 16 elements in 14 groups Angular Field 24 8 degrees Minimum Focus 1 8m 70 9in Focusing Action AF MF HSM type f stop Scale f 4 f 32 camera controlled Filter Size 82mm Lens Hood LH890 01 included Weight 1440g 51oz Dimensions 92 4x226 5mm 3 6x8 9 Lens Case Soft case included Field Tests Simply put Sigma APO 100 300mm f 4 EX DG HSM showed outstanding performance in the field The lens was sharp throughout most of the zoom range and throughout the tested aperture range It gets somewhat softer around borders towards 300mm focal length but even then performance is decent and does not completely fall apart like with some lenses Unfortunately I have not had a chance to test the lens with a 1 4x or 2x tele converters hopefully quality will not degrade significantly in such configurations Keep in mind that the lens is moderately heavy and while you can still use it when shooting off hand using a monopod or tripod would certainly help you get better pictures Vignetting f 4 full frame vs 1 6x crop 100mm Vignetting f 4 full frame vs 1 6x crop 300mm The lens showed basically no vignetting with an APS C camera and very negligible amount of vignetting on a full frame camera towards longer range of the zoom Unfortunately the lens fell prone to color fringing across the zoom range as well as occasional mild flare As expected from a telephoto zoom lens it did not produce any amount of noticeable distortion throughout the zoom range ISO 100 1 640 f 4 100mm Sample images coming soon Lab Tests Please note that MTF50 results for APS C and Full Frame cameras are not cross comparable despite the same normalized 0 1 range used to report results for both types of cameras APS C Sigma APO 100 300mm f 4 EX DG HSM showed outstanding performance in the 100 200mm zoom range Both center and border quality was top notch throughout the tested aperture range The overall performance in this zoom range was quite even with somewhat better results in the f 4 f 5 6 range Image quality starts to degrade slightly beyond 200mm but even at 300mm it remains solid in the center and decent around borders Overall performance peaks 100mm focal length where image quality easily rivals that of best fixed focal telephoto lenses Here the lens is capable of producing outstanding 19in and decent 24in and probably higher prints At its weakest point 300mm focal length the lens is still capable of producing exceptional 11in and decent 19in prints Conclusion All I can say is wow Image quality is simply one of the best in this segment and this is clearly the best Sigma zoom lens I tested so far So far it is also one of the best telephoto zoom lenses I ve tested MTF50 Line Width Inch on the Print 100mm Normalized raw MTF50 100mm MTF50

    Original URL path: http://slrlensreview.com/web/reviews/sigma/sigma-telephoto-zoom/184-sigma-apo-100-300mm-f4-ex-dg-hsm-lens-review (2016-02-18)
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  • Sigma APO 135-400mm F4.5-5.6 DG
    Telephoto Zoom Macro Wide Angle Zoom Pentax Wide Angle 645 Macro Standard Zoom Wide Angle Zoom Telephoto Standard Wide Angle Telephoto 645 Standard 645 Telephoto Zoom Sigma Wide Angle Macro Wide Angle Zoom Standard Zoom Telephoto Telephoto Zoom Sony Minolta Wide Angle Standard Telephoto Macro Wide Angle Zoom Standard Zoom Telephoto Zoom Tamron Wide Angle Macro Wide Angle Zoom Standard Zoom Telephoto Zoom Telephoto Tokina Wide Angle Standard Macro Wide

    Original URL path: http://slrlensreview.com/web/reviews/sigma/sigma-telephoto-zoom/186-sigma-apo-135-400mm-f45-56-dg (2016-02-18)
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  • Sigma APO 50-500mm F4-6.3 EX DG HSM Lens Review
    f 4 6 3 EX DG HSM lens front and rear caps LH935 01 lens hood soft lens case detachable tripod mount manual and warranty card The lens is priced at about US 900 as of July 2007 making it more or less affordable for serious amateurs Summary Lens Composition 20 elements in 16 groups Angular Field 46 5 degrees Minimum Focus 1m 39 4in Focusing Action AF MF HSM type f stop Scale f 4 f 22 camera controlled Filter Size 86mm Lens Hood LH935 01 included Weight 1840g 64 9oz Dimensions 95x218 5mm 3 7x8 6 Lens Case Soft case included Field Tests I loved the extreme zoom coverage of this lens Think about it 50mm to 500mm This is the extreme of extremes and for wildlife photographers Sigma 50 500mm should be a dream lens Or something like that While the zoom coverage is pretty convenient the image quality of this lens leaves room for improvement The lens was quite capable at the close end of the zoom range producing images with very good center and border quality with stopped down aperture Unfortunately image quality degrades towards longer end of the zoom range and stopping down the aperture does not help much At 500mm the images were still OK in the center but borders were noticeably soft With the extreme zoom comes extreme weight the lens is a monster Not that it is the heaviest lens or the largest but shooting it off hand was tedious mildly put Using a tripod is pretty much mandatory in my opinion Vignetting f 4 full frame vs 1 6x crop 50mm Vignetting f 6 3 full frame vs 1 6x crop 500mm The lens produced mild levels of vignetting throughout the zoom range on a full fram Canon 5D which is somewhat surprising for a telephoto lens Vignetting was non existent on an APS C body The lens did not produce any major color fringing Ditto for barrel distortion across the zoom range ISO 100 1 400 f 4 50mm Title Title Title View the embedded image gallery online at http slrlensreview com web reviews sigma sigma telephoto zoom 178 sigma apo 50 500mm f4 63 ex dg hsm lens review sigProGalleriac6f23df227 Lab Tests Please note that MTF50 results for APS C and Full Frame cameras are not cross comparable despite the same normalized 0 1 range used to report results for both types of cameras Canon APS C The lens performance was somewhat mixed Center performance was very solid from 50mm through 300mm range but only with stopped to f 8 f 11 aperture Center performance with wider apertures f 4 at 50mm and f 5 6 throughout the zoom range was slightly worse but still quite decent Border performance trails performance in the center throughout the zoom range at 50mm border quality is outstanding fromf 8 to f 11 is decent at f 5 6 and plain average at f 4 This trend continues once you start moving

    Original URL path: http://slrlensreview.com/web/reviews/sigma/sigma-telephoto-zoom/178-sigma-apo-50-500mm-f4-63-ex-dg-hsm-lens-review (2016-02-18)
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  • Sigma APO 70-200mm F2.8 EX DG MACRO HSM
    Zoom Sony Minolta Wide Angle Standard Telephoto Macro Wide Angle Zoom Standard Zoom Telephoto Zoom Tamron Wide Angle Macro Wide Angle Zoom Standard Zoom Telephoto Zoom Telephoto Tokina Wide Angle Standard Macro Wide Angle Zoom Standard Zoom Telephoto Zoom Voigtlander Wide Angle Standard Telephoto Macro Misc Mamiya Wide Angle 645 Standard 645 Telephoto 645 Russian Meyer Pentacon Contact Us Member Login Home Reviews Sigma Telephoto Zoom Sigma APO 70 200mm

    Original URL path: http://slrlensreview.com/web/reviews/sigma/sigma-telephoto-zoom/179-sigma-apo-70-200mm-f28-ex-dg-macro-hsm (2016-02-18)
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