olloclip, the maker of external lens attachments for Apple iPhones and iPod touch devices, now has a two-sided Telephoto + Circular Polarizing Lens that provides 2x optical magnification. For those of you not familiar with the term telephoto, it’s a type of long-focus lens that is compact in design and can bring your subjects closer to the lens. With a telephoto, you can also mess with depth-of-field to create areas in focus and not in focus, a technique you commonly see used in professional portraits.

Use of the olloclip lens can be enhanced by the olloclip app that allows you to selectively focus on your subject. The app is free to download from iTunes, and you can actually use it without having a lens attached (TIP: Just click on OK when prompted to attach the ottolens and you’ll be able to check out the app.)

As well as focus and exposure control, the app includes a mesh editor for adjusting curvature in your image after it’s taken, using an adjustment slider or presets for macro, wide, and fisheye correction.

The olloclip telephoto lens attachment also comes with a circular polarizing lens on the opposite side. To use, you just flip the attachment to cover the iPhone’s back camera. (Although, it would be nice if somehow the polarizer was also incorporated into the telephoto side.)

A circular polarizing lens can reduce glare from reflective surfaces, such as glass and water, and can be rotated to enhance certain light polarization and block other blocks of polarization. In other words, you can create some cool looking photographs that can be more color saturated and dominant in certain areas of the image. You’ll also be able to see what the polarizing filter is doing to the light spectrum directly on the iPhone display as it’s rotated.

The dual-function lens can be quickly attached and detached, and ottoclip provides a microfiber bag for easily storing in your pocket.

The olloclip Telephoto + Circular Polarizing lens system for iPhone 5, iPhone 4s, and iPod touch 4th generation (with adapter) is priced at $99. Can’t wait to get my hands on one.

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Jeff Chabot

Jeff Chabot has a background in web development and design, as well as working in broadcast television as a studio engineer, lighting director and editor. He frequently writes about technology, broadcasting, digital entertainment, and the internet.