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The following opinions have been automatically translated with Google Translate.
Pros:high sharpness in certain focal, very good in others, incredible contrast and colors, with the multiplier 1.4 sigma quality remains excellent, solidity.
Cons:High weight, the absence of a stabilizer.
Opinion:I was undecided on that optical tele take after using for a long time the Canon 70-300 is usm to be mounted on the newly arrived Canon 70D. rnVolevo a zoom that would do justice and that possibly not fall below the 300mm. rnAvevo identified the 100-400 and classical style that is now used at a very low price, or the 70-300 L series with very mixed opinions. rnPer via indecision was stalling and was considering the 70-200 f4 it is necessary to multiply (because dl lightweight transportability and fantastic optical yield) rnPoi I stumbled into SIGMA 100-300 F4 HSM that sincerely not considered own. rnVisto the attractive price I wanted to try. rnrnBhè after the test was love. As merits has a sharpness impossible to find for optical at this price, fast focusing (but not Lightning-fast) and a color rendering which I personally prefer to that of the Canon 70-300 L rnUniche flaws are weight and asenza of the stabilizer. rnrnComunque I surprised by the optical performance of the tests I did with my friend and I possessor of 70-300 Lsay that it is absurd as held blow at all focal .... indeed some even higher 135mm 200mm and 250mm being only inferior to 100mm and 300mm. I also tried the 70-200 f4 is not well here except to 100mm was still there as quality rather than 200mm higher. rnrnrnHo tried to multiply 1.4 and becomes a real war machine, only problem no monopod becomes really difficult to use: too heavy and long.
Cons:I had a conflict with a Nikon D3s nell'autofocus continuous (perhaps with another exemplary defective camera nikon user who has not bought me rferito no malfunction)
Opinion:and 'a great lens I bought it three times (I often buy them back and sell targets) for sports photos, landscapes and portraits and' one of the few (maybe the only) zoom with this hike (100-300mm) fixed iris F4 (bright enough), of excellent quality 'constructive, with motor HSM fast and very accessible price (I bought copies in perfect condition a little less or more' of 500 euro on ebay) rn.La sharpness even at full aperture and 'good to excellent 5.6. I never had any flaking of the coating .rnLo highly recommend.
Pros:AF, image quality, constant aperture at all focal lengths
Cons:lack stabilization, with dedicated multiplier of 1.4x full frame strong vignetting even diaframmandorn
Opinion:Optics clear that maintains good performance also coupled to the dedicated Sigma 1.4x multiplier. Fast AF. Comfortable is the collar that can be removed without having to remove the lens from the camera is the wide ring for focusing. The only real defect in the few days of use was vignetting on full frame mounted with the multiplier, also diaframmando.
user26730
sent on June 06, 2013
Pros:almost everyone!
Cons:maybe just the lack of OS
Opinion:But also relatively long leggero.rnNitido to f4. On APS-C even better than on FF. Some lament a loss of definition to the entire zoom range. But what zoom does not suffer from this "evil"? A 300 just close to 5.6 and sharpness back to being excellent! RnSorprendente in the studio for portrait (where the space consendte). RnHo heard of flaking of the coating and seems to be a constant, seen comments on the web. I personally use this lens for almost four years and I have not had any problem with this tipo.rnLente 82mm, for someone can 'be a problem because the filters in this measure cost. The filters are expensive however good, that they are 82, 77 or 67! RnMolto good packaging padded sigma offers to serie.rnOttica definitely consiglibile (value for money very good) although not very popular and not too available. Bought used, if in good condition, turns out to be a bargain not to be missed.
Pros:Brightness, distortion and vignetting non-existent with aps-c, despite handling the weight, good sharpness up to 280mm., Excellent and smooth zoom range
Cons:Lack of stabilizer, weight, low quality of the coating
Opinion:Sigma AF 100-300mm f / 4 EX DG HSM APO is an objective surprising once you are including affinity with the camera united to him. Personally I use with the Nikon D7000 and I still have not figured out if it is the machine that uses optical or vice versa. However, the ability to safely use the high sensitivity make this almost perfect combination for photo hunting especially the "prey" bigger. Good AF speed is also everything works fine with the converter Sigma 1.4x EX DG, even if it is a normal loss of definition, but not so annoying. Exceptional versatility focal, mainly because the tele retains its length and this is a feature especially useful when you have to take on safari beyond the means crowded. Among the problems, the most annoying is the peeling of the coating where the hands more insist using it, and in the long run the weight repeated using freehand which however is notso crucial and it is useful to regard the use of a support: with a good mono foot, becomes "weapon" infallible and from the results fabulous.
The following opinions have been automatically translated with Google Translate.
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