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The following opinions have been automatically translated with Google Translate.
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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