Enormous 300-800 mm zoomlens by Sigma

In the already impressive range of zoomlenses from Sigma a new one has been added: a huge and heavy precision instrument to get the smallest objects far away in sight and on your sensor.
It’s not the kind of lens anyone would like to buy: you almost need a trolley to take it with you into the fields with almost 6 kilos of weight. However, especially with the magnifying factor of modern sensors the effective focal range (35mm) can be up to 1600 mm! You can even couple the monster to a 1.4x or 2.0x teleconverter for an almost astronomic focal range.
Question is: how do you prevent this lens from movement, as it has no in-built stabilizer? At the end of the zoomrange, especially in suboptimal light conditions, the risk of shaken images is as big as the lens itself…
I would recommend to couple it to a camera with a sensor-based stabilizer!



