Sigma 800mm f/5.6

alaTest has collected and analyzed 2 user reviews of Sigma 800mm f/5.6 from Amazon.co.uk. The average user rating for this product is 4.0/5, compared to an average user rating of 4.5/5 for other products in the same category on Amazon.co.uk. Reviewers really like the design. Some have doubts about the price.

alaTest has collected and analyzed 2 user reviews of Sigma 800mm f/5.6 from Amazon.com. The average user rating for this product is 3.5/5, compared to an average user rating of 4.3/5 for other products in the same category on Amazon.com.

alaTest hat 2 Kundenbewertungen für Sigma 800mm f/5.6 von Amazon.de zusammengefasst und analysiert. Im Durchschnitt wurde das Produkt mit 5.0/5 bewertet, verglichen mit einer durchschnittlichen Bewertung von 4.3/5 für andere Produkte auf Amazon.de.

This lens from Sigma is in a class of it's own! Nobody else makes anything like it! Nothing else (apart from it's prime brother) that you can buy off the shelf for less than the price of a house has this sort of reach. So why have Sigma gone to such...

This lens from Sigma is in a class of it's own! Nobody else makes anything like it! Nothing else (apart from it's prime brother) that you can buy off the shelf for less than the price of a house has this sort of reach. So why have Sigma gone to such...

I've owned mine for a bit over three years, I'm a bird photographer and work a couple of days a week so it gets a real workout. I also use a 400mm with 1.4 and 300mm with 1.4 but my favorite is the Sigmonster, I have even managed to hand hold it from...

I own this lens a little over a year and I am very pleased with the results. I hesitated between the Nikon 500 and this lens. The Nikon had more contrast and sharpness and a more blue character.

I saw this lens demonstrated and thought I could never justify spending so much on such a vast product - strange how view change. The important thing to say is that without a gimbal head like a Wimberley it is totally impractical - with one it becomes...

7500收了一支9成新的，带前端AC滤镜和皮质镜头套，镜片完美，镜身有些许磕碰（注意不是掉漆，而是磕碰后的印子，美能达G镜的漆面还是过硬的）。这年头物价飞涨，X鸟上居然有人把此头炒到9000以上。。。说说性能吧，手上有720G、730G、740G以及200G，光圈全开的画质与730G和740G基本持平（注意730G和740G的光圈更小），但不如200G+1.4增距，对焦速度直接PK掉730G和740G，和720G、200G持平。总体来说是打鸟、亮骚的绝佳选择。

请问各位老师,300/4 IF-ED 用什么增倍镜比较合适

非常满意。