Fujifilm Optical Division Blog

In only a couple of days, 90,000+ broadcast and video professionals will converge once again on Las Vegas for the annual NAB Show. While the gathering in Sin City has become familiar to most, ever-changing technology continues to make the show look quite different with each passing exhibition.

Within the past decade, we have gone from standard def to HD, and last year 3D was in vogue. Station engineers are still around but they’ve been joined by a level of IT professional that would have been more apt to be strolling down the aisles of Interop rather than NAB a few short years ago.

But, as the old saying goes, “Change is good.” That is certainly the case with this year’s NAB. A global platform (attendees are expected from more than 150 countries, according to show management), NAB has a concentration on 3D once again, but also mobile apps and transmedia will make their presence known. Personally, I’m excited to see how the world of digital media will continue to revolutionize our industry. No doubt, some of that change will be on display by the approximately 1,500 exhibitors, of which Fujinon is one. We will be addressing the trends in the marketplace with our new optical products.


One thing that I believe NAB management has done successfully the past few years is to define the areas of interest so it is as easy as possible for attendees to make the best use of their time. This is no easy task, given that the show covers so many topics over a landscape of more than 800,000 square feet. Areas such as the various “PITS” (People Integrating Technologies and Solutions) worked well last year and it’s good to see them again at NAB 2011. Given the whirlwind pace of change in our market, it’s also good to see the educational program have such depth.

“The more things change, the more they stay the same” is another well known saying. That applies to NAB 2011. It remains the show of our industry but it continues to have a different look and feel. I’m interested to hear some other thoughts, so stop by our booth (C7525) and let me know what you think of the show. And check back here, as well as our Facebook and Twitter pages, for show updates.
Posted: 4/5/2011 5:22:03 PM by Thom Calabro | with 0 comments

Welcome to part three of our series on lens technology and its influence on today’s broadcast and video world. Today, let’s take a close look at optical stability technology.

High def has brought with it crystal clear pictures that allow viewers to see the smallest imperfections. It also has made slight variations in camera operation stand out much larger than if they were made in standard definition.

That is one of the reasons optical stabilization technology has become so important. First, let’s explain how and why a shaky picture happens. To create an image, light rays travel through the lens into the camera, where they are converted into an image. If the camera operator happens to be on an unstable platform, is shooting in a driving wind, or simply has an unsteady hand for a fraction of a second, the lens will move. This causes the light rays to bend, relative to the optical axis. The result is a blurred image.

Optical stability technology has been developed to make sure those images remain crystal clear. Lenses are designed with OS systems that feature gyro-sensors that can detect the slightest movement that may cause vibration and subsequent bending of the light ray. The sensors detect the angle and speed of movement and send this data to a high-speed 32-bit microcomputer. The microcomputer then converts the detection signals into a correction signal that is applied to the optical correction system which actually moves the internal lens elements. This offsets the movement and helps to maintain a stable image.

OS systems are not just helpful during HD shoots. They’re also handy in applications in which a very long focal length is necessary, since the slightest movement will cause image shake and an unacceptable picture.

To learn more about how lens technology is reshaping optical stabilization systems, visit Fujinon.com.

Posted: 3/29/2011 2:00:07 PM by Thom Calabro | with 0 comments

In this edition of lens technology, we’d like to concentrate on something that can be taken for granted but should never be overlooked. That would be achieving optimum focus.

Nothing enhances the in-home HDTV experience more than high-quality images. And nothing ensures acquiring the best possible images more than proper focus. Now, automatic focus systems have been available in consumer products for well over a decade. But these systems simply were not good enough for professional broadcast applications.

That is why NHK, one of the top broadcasting companies in the world, teamed with Fujinon back in 2000 to create a technology that would help achieve optimum focus. From that partnership, Precision Focus Assist System was developed.

Precision Focus is designed within a lens and allows the lens to go directly to the primary point of focus. It achieves this optical focus position by using a contrast method. Two CCDs are optically spaced between an image plane in a lens. The two CCDs measure and compare image contrast, and then the Precision Focus system makes any adjustments to maintain optimal focus. It even ensures optimum focus on an object as it is moving, and also maintains focus in any zoom position, from the narrowest to the widest.

By making sure optimal focus is achieved at all times in any setting, Precision Focus allows the operator to concentrate on other things, such as framing, to achieve the best possible shot. This all allows viewers at home to have an incredible in-home experience while watching their favorite programs.

To learn more about how lens technology is improving focus, visit Fujinon.com.

Posted: 3/7/2011 3:17:03 PM by Thom Calabro | with 0 comments


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