نقل قول:
نه خودم تست نکردم ولی تستهایی که دیدم نتیجه رضایت بخش نبود اصلا.توی فواصل زیر 300 از 400-100 شارپتر هست ولی از اون به بعد خیلی افت میکنه(خصوصا روی 500).عملکرد لرزشگیر هم نسبت به 400-100 اصلا رضایت بخش نیست...با توجه به اینکه 10 سالی هم 400-100 جدیدتر هست نا امید کننده بود.تست جوزا رو روی سایتش ببینید حتما...
... ولی جوزا هم با این صراحت از این لنز بد نمی گویدها! بیشترین مشکل جوزا با این لنز قیمت آن است:
نقل قول:
The Sigma 50-500 OS is a nice update of its predecessor; it has kept good image quality (impressive for a 10x zoom!) and it adds the very useful image stabilization, even though it is not very effective: it helps, but it does not come close to the impressive 4 stop IS used on recent Canon and Nikon lenses.
The 50-500 OS has only one big problem: price. The old 50-500 was around $1000, the new 50-500 OS costs $1600, a price that put this lens in direct competition with the Canon 100-400 IS. So, if you had to choose between Canon 100-400 and Sigma 50-500 OS at the same price, which one would you buy? I think that the majority of people, me included, would go for the Canon. There is not an huge difference, but there are many little things that overall makes the Canon a better lens: slightly better image quality at the long end, much faster push-pull zooming, slightly faster AF, more effective image stabilization, better built quality, lighter weight and smaller size.
In conclusion, the 50-500 OS is a good lens, but I would not buy it until the price drops to more reasonable levels, as its $1000 predecessor.
نه اینکه طرفدار سفت و سخت این لنز باشم ولی چون دارم در این مورد تحقیق می کنم و ریویوهای این لنز را کم و بیش می خوانم عرض کردم...