You may be entirely confused about where to start, when it comes to buying a digital slr lens for your digital SLR. Should you just go for the biggest lens you can find? Do you have to understand all that confusing technical terminology? How are you supposed to make a sound selection and find a great value at the same time? If you have some basic knowledge to help get you started, it does not have to be a daunting process.
About Focal Length
One of the main things you have to consider is what is known either as focal-length multiplier or focal-length magnification. This refers to the conversion in a digital SLR from its APS-size sensor. In other words, your digital SLR lens is going to act in a way bigger than it actually is.
The conversion is about 1.5 to 1.6, which means that a 50 mm lens really gives you an angle of view compatible to a traditional 75 mm lens. For instance, 200 mm would be 300 mm. However, it’s important to note that this only accounts for the angle of view, and doesn’t actually change the optics principles or distortion of a particular lens sense or style.
Look Out for Apochromatic Correction
Aprochromatic correction, image stabilization and digital only lenses are a few other features or options to keep in mind. Starting with the latter, digital only lenses provide great value but won’t be compatible with a traditional camera, or potentially future SLRs with 35 mm lenses. Examples of this include the Nikon DX.
Image stabilization will help you get better shots by counteracting camera shake or blur from slow shutter speeds, and apochromatic correction helps to improve image sharpness. Also note that while some lenses offer image stabilization, some camera bodies such as those from Sony and Olympus are designed to provide the stabilization effects.
Top Brands to Look For
You’ll definitely have a wide range to choose from, when it comes to brands. Canon slr lenses, from a company which has a great reputation for high quality lenses and camera bodies as well, are undoubtedly the most recognizable of the bunch. Furthermore, you will find some great options from Olympus, Tamron, Panasonic, Nikon and a range of other manufacturers also.
More customized solutions for a particular setting or style of photography may be found with some of these brands. It could be that you are only interested in buying the same brand for the lens and the camera body. While this isn’t a necessity in most cases, this often offers greater synergy and performance for your shots. It’s entirely up to you whether or not you’d like to do this.
This has been just a simple starting guide for camera lenses and digital SLR cameras. You will have to cross the bridge of how much cash you need to end up spending as well, and there are certainly other things to consider. You will always be able to find a great match for your specific needs and your budgetary constraints, whatever they may be, but it’s always better to buy one versatile, high quality lens than needing to get a variety of more limited and lesser quality lenses.