- A new optical design for top-end image quality
- Quiet and smooth AF operation thanks to SSM Dust and drip resistant design High-grade metal body Superior Large-Aperture Performance
- Dust and drip resistant design
- High-grade metal body
- Superior Large-Aperture Performance
Sony introduces the long-awaited, Carl Zeiss full-frame, large-aperture, single-focal-length lens with an all new optical design that sets new standards in resolving power and contrast. , Read More..
Virtual Private Network enables you to use internet to connect to machines while making sure that the connections are private. VPN is very convenient, but it is not necessary if you want remote clients to connect to you Linux or Unix server. Many people concerned about fast connections might then ask “how fast can a VPN go?” The simplest answer is that; a VPN can go as fast as other types of connection and can be faster if there is fast internet connection at both ends of the network. Actually VPN servers can be as fast as any other internet connections although there are several things that you should do to have faster VPN internet speeds.If your VPN can allow you to select the authentication key size, then, you should select a smaller authentication key size to speed up your VPN connection. This is for open VPN and Tunnelblick software clients. Usually Open VPN creates a 128 bit encrypted data channel and a 256 bit encrypted control channel. Most VPN providers allows you to lower the control channel to 128 bit making the connection reducing the connection time significantly. Replacing your VPN’s host name with the IP address of the server, can also speed up your VPN connection speed. In addition, running your VPN directly on a faster CPU computer lowers the connection time and therefore making your VPN speed to be faster, than running the VPN on a router.Maintaining a stable connection is also very important in determination of how fast a VPN can go. It is always advisable to choose a VPN server with the least amount of data packet loss and if possible 0 %. Your firewall setting should be done in a way that will allow your VPN to flow unrestrictedly. Although the firewall may not be restricting your VPN, it may be slowing the CPU speed when scrutinizing all network packets. It is also important to use a good internet provider to maintain a stable connection.When trying to look for a fast server for your VPN, you need to know the country in which the server is located. The distance between your country and the server’s country matters a lot. The longer the distance, the slow the connection speed will be. This is due to the time a data packet travels back and forth from your VPN to the server. You can use the ping command to check the speed between your computer and the server. The ping command analyses how long information takes to reach the server. In a Windows operating system, click on run to go to the DOS command box and type the word ping followed by your VPN’s IP address and hit the enter button. This will show you how many milliseconds the data takes to reach your VPN server. By doing this, you can choose between several servers available to you and select the one with least connection time. You should also pick the server which is closest to you.
- For use with smaller chip APS-c and 4/3 cameras only
- HSM (Hyper-Sonic Motor) ensures a quiet & high-speed auto focus
- Aspherical glass elements offer correction for distortion
- Special Low Dispersion (SLD) & ELD (Extraordinary Low Dispersion) glass provides optimum color correction & sharpness
- A lens hood, front/rear lens cap and carrying case are included with the lensSpecifications
This Sigma 30mm F1.4 EX DC HSM lens, built for professional use, is a high quality prime lens suitable for professional use delivering outstanding optical performance for the discerning photographer. As a large aperture standard lens for digital cameras with a fast 1.4 aperture makes handheld shooting in dim light possible. 30mm corresponds to the diagonal of the imaging sensor found on most small chip cameras and as such, functions as a “normal” lens closely replicating the human eye’s field of vision.
Features Lens Construction – 7 Elements in 7 Groups Angle of View – 45 Number of Diaphragm Blades – 8 Minimum Aperture – f16 Minimum Focusing Distance – 40 cm / 15.7 in. Filter Size (mm) – 62mm Maximum Magnifications – 1 – 10.4 Corresponding Mounts – Sony/Minolta (EX, DC) Dimensions (Diameter x Length) – 76.6 x 59 mm / 3.0 x 2.3 in. Weight – 430 g / 15.2oz. , Read More..
Business travelers are used to enjoying Internet access at hundreds of airports worldwide-there are more than 300 locations in the U.S. alone, including numerous terminals and airline club lounges.Inflight Internet is gradually expanding to more US-based airlines and eventually overseas.So what can you do with Inflight Internet? You can do almost anything you are already equipped to do with your ground-based Wi-Fi service! Things like text chat, Web surfing, email and even Internet radio (with headphones, please!) all work seamlessly. With some services, it even works with corporate VPN networks, offering secure access to your work environment. You’ll be able keep up with the latest news and sports scores, check in with the office, schedule meetings, send and receive documents you’re working on, and much more. Of course airline rules — and basic etiquette — prohibit the use of Internet voice services, so you won’t need to worry about your seatmate suddenly starting up an intrusive chat session.How it worksThese services either rely on satellite communications or a nationwide network of mobile broadband towers on the ground that are pointed upwards to cover the entire sky above the continental U.S. Once your flight has reached an elevation of 10,000 feet and the crew gives the okay to turn on your portable electronics, the service will be available. Just search for the service in your Internet access client and double click to get connected, or open up a browser which will guide you through connection. Make sure to check if your service provider is listed, to save the cost of connection.Businesses that are using certain network access services can add inflight wi-fi for free, letting their employees have the choice of being productive while flying. Users can get caught up with projects and clients and not worry about paying the access fees and getting them expensed back later.Even smartphones. iPads and other tablets with a browser and Wi-Fi can get connected. iPads are especially useful with the extended battery life over laptops.For Wi-Fi-enabled flights, users should bring a spare battery or power cord. Check ahead with the airlines about the availability of electrical outlets on flight, as some airlines not only have them, but have them in every row of seats.Where to ConnectUp until now, one of the biggest hurdles to using inflight Wi-Fi was simply not knowing whether it would be available on your flight. However, a critical mass of Wi-Fi-enabled planes traveling within the US are now in the air. More airlines are adding it every day, eventually expanding into Europe-based airlines. Check the airline website to see what’s available.
- For use with Samsung NX camera mounts
- Auto and Manual Focusing
- Optical Image Stabilization
- Two ED (Extra-Low Dispersion) Elements
- 52mm Filter Size
Samsung T50200SB NX 50-200mm f/4.0-5.6 OIS Lens , Get the best price
TABLE OF CONTENTS· What drives SMBs to IT outsourcing?· What holds them back?· Specific benefits for SMBs· Outsourcing myths among SMBs· Challenges SMBs face in Outsourcing· ConclusionSUMMARYSmall businesses have always confronted with addressing their IT necessities. The lack of resources – be it staff, budgets or managing resources – have determined SMBs to start exploring the offshore outsourcing option. But start ups and small enterprises have specific needs that few outsourcers can address correctly. Affordable IT solutions that are easily to install and configure, service/support requirements and, most of all, integrated ready-to-use methodologies and tools are the most critical demands of an SMB willing to outsource its IT department.What drives SMBs to IT outsourcing?The SMB market is to eager to find affordable IT solutions that are easy to use. Just as important, however, is are the requirement that address SMB deployment issues, operational challenges and service/support requirements. SMBs want IT solutions that are easy to install and configure, and require minimal customization and integration. More importantly, they demand responsive and reliable after-sales service and support. SMBs don’t take customer service and technical support for granted. For many small companies, a solution provider’s technical support isn’t merely a convenience; it’s a business-critical IT service, because of their resourceconstrained IT staffs.SMB business specific challenges and “pain points” determine specific needs for small enterprises. Most outsourcing providers are specialized on the early adopters of outsourced software services – large companies multinationals. Therefore there are few specialized providers for SMBs and able to adapt to their business model and needs. Yet small-sized, SMBs are still technology-intensive businesses that require great attention from outsourcing providers. Small businesses should choose outsourcing their IT to those providers withexperience in managing SMB projects.What holds them back?At first glance, this key issue can seem redundant with the ones in the previous paragraph. However, we often see a contradiction between SMB IT requirements and how SMBs buy technology. For example, SMBs cite tight IT budgets as an inhibitor for adopting technology, but yet they choose not to use vehicles such as “leasing” to work around limited IT budgets. Creating the right IT solution for SMBs requires a clear understanding of their technology and business needs.REASONS SMBs CITE FOROUTSOURCING· Cost Reduction· Access to better skill sets, depth of experience· Access to the best / most current technologies· Minimizing downtown· Increasing user productivity· Reallocating personnel to more strategic activities· ConvenienceSMBs prefer IT solutions that have simple and straightforward pricing (the requirement), but they need the flexibility to consume technology in modular components that can be extended when required (the behavior).It is also important to understand SMB preferences including, but not limited to, brand loyalty, bundling and packaging, and service delivery options, such as outsourcing and software as a service, as SMBs upgrade and expand their IT environments. Yet, there are still issues that have prevented SMBs to start outsourcing their IT department until recently. And these are:Affordability: Recent market figures point out that still 40% of SMBs state cost as still the strongest reason preventing them from outsourcing. But offshoring proved that in most cases the outsourcing option will be significantly cheaper than hiring in-house staff – since manpower or infrastructure costs are lower at the vendor’s location.Trust: Lack of clearly defined methodologies and contracts, quality certifications, security assurance and even cultural issues can contribute to low trust levels among SMBs when engaging in an outsourcing relationship. The vendor must be able to place confidence, expect with assurance, agree to the contract, and act predictably and fairly in order to obtain trust from their clients.Intellectual Property and Data Security: One of the major drawbacks for outsourcing adoption among SMBs is related to protection of intellectual property and information in general. Especially for technology-intensive start ups that rely on innovation, these are business-critical issues, and not all providers have yet in place the procedures for ensuring all these.COMMON REASONS FOR SMB OUTSOURCING· Network Connectivity:Monitoring and Management of WAN, Routers,Internet Connections, VPN· Security:Monitoring and Management of Firewall, VirusProtection, Spam Prevention, IDS / IPS· Data Backup / Archiving:Offsite Storage, Shared SAN, Data Centers,Archiving Services· Messaging and Collaboration:Email, Web Conferencing· Software Applications:Licensing Management, ASP· Desktop Management:Helpdesk, Break/Fix· Server Management:Monitoring Health and Performance Thresholds,Break/Fix, Administration· Web Development / E-Commerce· Database AdministrationUnderstanding: A clear understanding about the outsourcing process and benefits is minimal among small companies. Offshore software services vendors are more interested in adding Fortune 500 names to their client lists and hence have failed to educate small businesses about the benefits of outsourcing.Volume of work: Large service providers would rather work with large corporations that can outsource large volumes of work. The volume of work outsourced by SMBs may not be feasible for large vendors. This trend seems to be reversing, but slowly.Management experience: Small and medium businesses do not have the “management experience” required to work with an outsourcing project. Large corporations, for instance, have dedicated specialized resources to manage vendors.Benefits of IT Outsourcing for SMBsProcess MaturityPerhaps the main reason companies want to outsource is to engage a mature team for its development tasks.Types of processes, the investments being made in services, the infrastructure and the level of communication, trust and understanding that exists between the vendor and client’s company all influence the quality, results and outcomes of the process. The maturity process should be adapted and flexible not static, developing in scale, scope and framework as the relationship evolves and business results need to be maximized. Process maturity is effective when it improves costs, efficiency and productivity in a total quality control approach.Cost SavingsLower cost is one of the primary reasons for outsourcing. The cost savings are commonly based on the wage difference between the Western world and offshore destinations. Other factors such as economies of scale and specialization could also have a considerable impact.Knowledge & ExpertiseOutsourcing gives you access to knowledge pools that you might not have inside your own company. Outsourcing also enables you to focus on your company’s core business and competences.Risk & Quality ControlOutsourcing agreements can be structured in a way that the responsibility to produce a certain quantity/quality of output is placed at the outsourcing provider, thereby giving you a better way of managing risk. The responsibility of the provider can be defined in so-called Service Level Agreements(SLAs).Capacity ManagementOutsourcing gives you a tool to manage your output or production capacity in a flexible way.StaffingBy using external resources, you can overcome possible shortages on the job market. This is especially the case for highly specialized roles in, such as the information technology industry.Despite the proven benefits of outsourcing – shown below – SMB managers still seem to be reluctant when it comes to IT outsourcing. Many of them share so-called “myth” beliefs which we would like to address as follows.Outsourcing Myths among SMBsSome of the deterrents mentioned before are only misconceptions. Some of the most common things an SMB manager will say when approached for offering offshore software services are:”WE ARE TOO SMALL TO OUTSOURCE”The real thing: It is very difficult to define the size of an organization that is ready to outsource. There are “virtual companies” that outsource all their development requirements and handle only marketing and branding.In short, if you can see a need for software development, you can outsource.”WE CANNOT OUTSOURCE OUR CORE PRODUCT DEVELOPMENT”The real thing: Core product development can be outsourced and there are several success stories. However, it is absolutely essential to do a thorough background check on the vendor and ensure that the vendor has a good track record in protecting IP before outsourcing core product development.”WE DON’T AFFORD OUTSOURCING”The real thing: The underlying meaning of this statement again reflects the perceived difference in outsourcing core and non-core areas. You don’t have to outsource for the sake of outsourcing! Engaging an offshore partner is usually cheaper by 30 to 40%, as manpower, infrastructure costs are far lower at the vendor’s location.”THE ROI OF OUTSOURCING HASN’T BEEN PROVED”The real thing: On the contrary, the ROI component of outsourcing has been shown time and time again. In fact, the greatest arbiter, the marketplace, seems to give outsourcing a resounding thumbs up. Beyond reducing head count and employee overhead, additional benefits such as faster time to market and improved quality of the finished product can achieve an ROI of over 400% in some cases. Today, the question is not if you will outsource, but when and how.”OUTSOURCING MEANS MORE TIME SPENT MANAGING OUTSIDE VENDORS WHO ARE UNLIKELY TOBE FAMILIAR WITH MY BUSINESS”Like most services related to IT, choosing the right provider can make all the difference. In addition to SLAs, SMBs considering outsourcing IT tasks should look for providers with specific and proven experience inappropriate industries. Outside providers can also offer solutions that are vertically aligned.Challenges SMBs face in outsourcingSMBs that have identified vendors for outsourcing development / maintenance or looking for a vendor, should consider certain aspects that can easily ground the outsourcing initiative. Some of the factors that SMBs should consider before signing on the dotted line are as follows.Alignment of focus: Vendors too come in different sizes with different priorities! Some of them are largeoperators and some of them are small. SMBs should choose a vendor most aligned to the company’s needs.Some of the vendors have of late spread too thin by getting into non-development outsourcing services resulting in lack of focus. In determining the ideal fit, alignment of focus is a key parameter apart from several other factors like culture, competence etc.Lack of well-defined processes: In most of the small companies, a bunch of motivated tech team manages software development. Small companies and start-ups do not always have defined processes for managing outsourced software development. Many of the vendors find it difficult to deal with such a setup. Vendors are more comfortable dealing with companies with clearly defined processes. Companies looking to outsource should spend time in defining the roles and responsibilities of their internal team and the vendors’ team. Most of the vendors have mature development processes in place and companies can adopt them.Commitment to a relationship: All major vendors work with multinational companies and a small client may not be considered as important as a fortune 500 client. In other words, a large vendor would most likely focus on serving large clients with large business volumes rather than serving small clients. Small companies should choose a vendor who values the relationship and hence has a stake in the success of the engagement.Track record and experience: Companies should look at the vendor’s track record and experience in working with small companies. Vendors are comfortable working with large companies may not understand the nuances of working with smaller companies. Small companies may not have proper documentation or hardware/software infrastructure for testing, version control etc. A vendor with a track record of dealing with small companies should be in a position to expect such situations.Risk Management: SMBs should seriously evaluate risk management processes adopted by the vendor. The recent trend among offshore software services vendors is the adoption of a business continuity plan (BCP). Vendors with a clear BCP stand a better chance of providing uninterrupted services in the face of contingencies.ConclusionOffshore outsourcing has been discovered for quite some time by large corporations but has barely attracted the attention of SMBs. Still, there are many proven benefits that should encourage SMBs to outsource their IT function. And, more important, there are providers of outsourcing services that accommodate on a small business’ model and already have experience in dealing with this kind of projects. As we mentioned before, it’s not a question of whether to outsource but more likely when to do it and especially who is the right outsourcing vendor for your buying profile.
- 9 Groups, 13 Elements Lens Construction
- Rotation Type of Zooming
- 9 Diaphragm Blade Number
- F/32 Minimum Aperture
- 59 inch Minimum Focus Distance (1.5m) in normal setting, 37.4 inch (0.95m) in macro mode f=180mm-300mm range
Tamron offers a lightweight, compact, high-image-quality telephoto zoom lens with macro capability of 1:2 that can be used with digital cameras. This new lens is a Di type lens using an optical system with improved multi-coating designed to function with digital SLR cameras as well as film cameras. With this 70-300mm telephoto zoom lens, flipping a macro switch in the focal length range of 180mm to 300mm obtains a maximum magnification ratio of 1:2 at a minimum focus distance as short as 37.4 inch, enabling close-up shots of flowers, insects, and other objects that normally require the use of a specially designed macro lens. Moreover, this is a zoom lens that casually offers the distant capture and foreshortening effect pleasures of the 300mm ultra-telephoto world. 1 – 2 Macro Magnification Ratio at f=300mm MFD 0.95m Filter Diameter – 62 Weight – 435 gram (15.3 ounces) Diameter x Length – 3.0 x 4.6 inch (76.6mm x 116.5mm) Accessory Lens hood , Click to see product..