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Sigma 150 600mm f 5 6.3 dg os hsm s7/22/2023 If you’re looking to stop the lens down, I’d use caution when approaching f/16 and beyond to avoid diffraction muddying up image quality - but this is true for every lens you’d mount. Shooting at the far end of its focal capabilities will result in a more significant drop in image quality, but you only really notice this if you are pixel peeping photos side by side. If you’re mounting this to a new Canon or Nikon, or even Sony via adapter, this is a great time to benefit from the much reduced noise coming from higher ISO images these days. Yes, stopping down a bit is going to give you the sharpest results the lens is capable of, but realistically you aren’t ruining any images by letting it fly wide open. The typical photographer using this lens is probably going to be shooting wide open much of the time to get all the light and speed as the f/5-6.3 aperture will allow, and the good news is that there won’t be any real-world downsides in doing so. Working with this lens at a variety of focal lengths showed strong results nearly across the board from center to edge. With that, what I found is the sharpness of this lens is highly acceptable coming from a price tag just under $1,000. The framing in a crop sensor image is more concentrated on the sharpest spot at the center of the lens. In images from a full-frame camera, and with just about any lens, you can expect sharpness to fall off more in the corners due to showing the lens' full image circle. Just a note before I talk about sharpness, I only used this lens mounted to the crop-sensor Sigma sd Quattro. The zoom can be locked into any of the eight labeled focal length indication stampings on the lens. Being such a weighty telephoto, there's also a zoom lock switch to prevent unwanted zoom creep. There are a number of different toggle switches along the barrel including focus mode control, a focus limiter, optical stabilization control, and custom function control. However, the performance is really wonderful in allowing for quick and smooth transitions over a wide focus change while still being resistant enough for subtle fine tuning. In practice, pulling the zoom back in is easiest if you just grab the lens hood, but that's not exactly an ideal method.Ĭompared to the zoom ring, the focus ring is much smaller and harder to find with your eye pressed into the viewfinder. This Sigma lens also allows for push/pull zooming by use of the grippy flared design near the front. The zoom ring rotates 146 degrees in going from 150mm to 600mm. Its versatility provides better flexibility for wider shooting scenes, and the high-performance definitely stimulates photographers' artistic expression.The outside of the lens features a generously-sized rubber zoom ring with a ribbed texture. While combining high portability and durability, this high-performance hyper-telephoto zoom lens from our Sports line offers outstanding rendering capabilities. Since telephoto zoom lenses are often used under very challenging situations, this model has crystalized all the possible qualities and features to achieve the best optical and action-capture performance. Portable, durable and of a high-standard – A Masterpiece of hyper-telephoto zoom lens.ĭust- and splash-proof, zoom lock at every focus distance, water-repellent coating, compatibility with the new tele converters, new OS system with acceleration sensor, easily accessible manual over-ride switch, optimized auto focusing, telephoto shooting at 600mm, minimized chromatic aberration for higher optical performance and enhanced enjoyment with beautiful build quality.
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