The Sigma 18-300mm F3.5-6.3 DC OS HSM Macro | Contemporary is the newest all-in-one camera lens in the Sigma lineup, and offers a high 16.6x zoom ratio, 1:3 macro magnification, Optical Stabilizer, in a lens that covers wide angle to supertelephoto in a single, lightweight lens.
In part one we discussed the use of polarizers and solid neutral density filters. So what other filter should you have in your bag? The answer is: the graduated split neutral density (ND) filter. What do they do? They allow you to balance the light on the foreground with the tonality and brightness of the sky. How? The filter is split in half with the top being much darker and the bottom half clear. The dark area is graduated down towards the middle, which allows you to darken the sky and better match it up with the tonality of the foreground.
They generally come in 2 styles; one with a hard edge and the other is often referred to a soft edge. The hard edge has a clearly defined line where the soft edge is more graduated. This is the one I prefer and use most of the time. A variety I also have is called a reverse graduated neutral density filter (both made by Singh Ray) where the darkest area is towards the middle which makes it particularly useful as the sun comes up or is about to set. It is best suited for situations where you have a pretty level horizon without many protrusions into the sky. Below is an example of both and they typically come in increments from 1stop all the way up to 5 or more. Most practical are the 2 and 3 stop versions from numerous manufacturers. Notice that I am not recommending any screw in type as what you want to darken is seldom in the middle of the frame.
This simple answer is absolutely yes!!! While they may not be as important as they were in the film days, […]
My annual trip to Alaska in late July to early August usually means big skies and great light, schools of salmon in the rivers and creeks and coastal brown bears, lots of cubs, and almost unlimited photo opportunities. This year we were treated to two full weeks of sun and clouds without a single rain shower. These are some of my favorite moments of the trip with some technical notes and stories behind the images.
I have been photographing nighttime landscapes for about 20 years now capturing images of star trails like the one pictured […]
On a recent trip to Alaska I brought along a lens on loan from Sigma, the 18-250mm F3.5-6.3 DC OS MACRO HSM lens. Apparently this lens a very popular lens in the super zoom multi-purpose category but the question is, how would do on a wildlife shoot? When I was packing for my trip I remember thinking that I didn’t know how the lens would perform but at least the lens is so tiny it wouldn’t take up a lot of room in my bag.
Honestly it was my first time using this lens, or any type of super zoom lens, so I didn’t have a clue of what to expect but as the first series of images popped on the screen I was pleasantly surprised but when I zoomed in to see the sharpness at 100% the feeling changed to one of mild shock!
The Sigma 150-500mm F5-6.3 zoom lens offers great versatatility and reach in a compact package, perfect for on-the-go wildlife and birding phtoography.