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Canon EF-S 55-250mm F/4-5.6 IS STM Lens
The Canon EFS 55-250mm IS STM is an 88-400mm-equivalent zoom for Canon APS-C DSLRs.
This lens's long reach is enhanced by the inclusion of an Ultra-Low Dispersion element, which helps to greatly reduce colour fringing and chromatic aberrations for greater clarity and colour accuracy throughout the zoom range. A Super Spectra coating is also featured and minimizes flare and ghosting in order to produce greater contrast when working in bright lighting conditions. Benefitting both photo and video applications, an STM stepping AF motor is used to realize quick and near-silent autofocus performance along with full-time manual focus override. Additionally, a four-stop-effective Image Stabilizer system is also featured and minimizes the appearance of camera shake for sharper handheld shooting.
Achieve beautiful background blur
The seven-bladed aperture diaphragm increases the quality of out-of-focus areas, so your subject stands out against a soft, blurred background.
Get up close to the smallest subjects
This lens boasts a minimal distance of 0.85 meters to shoot small subjects and the non-rotating front element makes using filters easy.
Lose camera shake with the Image Stabilizer
Canon's Image Stabilizer technology allows shutter speeds up to 3.5 stops slower than normal to be used whilst limiting the effects of camera shake.
Experience the benefits of stepping motor technology
This lens boasts stepping motor technology for smooth and quiet continuous focusing for video and fast, accurate autofocus for stills.
The technical details behind this lens
A compact telephoto lens that takes you closer to the action. An Image Stabilizer prevents blur owing to unintentional camera movement. STM technology delivers smooth quiet focusing when shooting movies.
Beautiful bokeh and up-close photography
The seven-bladed aperture diaphragm increases the quality of out-of-focus areas, so your subject stands out against a soft, blurred background. Additionally, this lens boasts a minimal distance of 0.85 metres to shoot small subjects and the non-rotating front element makes using filters easy.
Image stabilisation
Canon's Image Stabilizer technology allows shutter speeds up to 3.5 stops slower than normal to be used whilst limiting the effects of camera shake. This lens also boasts stepping motor technology for smooth and quiet continuous focusing for video and fast, accurate auto focus for stills.
Specification
Focal Length | 55 - 250mm Comparable 35mm Focal Length: 88 - 400 mm |
---|---|
Aperture Range | Maximum: f/4 - 5.6 |
Camera Mount | Canon EF-S |
Lens Format | Canon (APS-C) |
Minimum Focusing Distance | 2.79’ (85 cm) |
Image Stabilizer | Yes |
Angle Of View | 27 50’ - 6 15’ |
Groups | 12 |
Diaphragm Blades | 7 |
Elements | 15 |
Dimensions (DxL) | Approx. 7.0 x 11.1 cm |
Weight | 375 |
Filter Thread Size | Front: 58 mm |
Weight | 0.37 kg |
Autofocus | Yes |
Aperture | Maximum: f/4 to 5.6 Minimum: f/22 to 32 |
Camera Mount Type | Canon EF-S |
Format Compatibility | APS-C |
Minimum Focus Distance | 85 cm |
Magnification | 0.29x |
Maximum Reproduction Ratio | 1:3.45 |
Optical Design | 15 Elements in 12 Groups |
Diaphragm Blades | 7, Rounded |
Image Stabilization | Yes |
Tips for protecting your children online
In today's digital age, ensuring your children's safety while they browse the internet is paramount. As they explore the vast online world through smartphones, gaming consoles, laptops, and other devices, it's essential to implement measures to shield them from potentially harmful content and interactions. Here are some tips to help you safeguard your children online:
1. Communication is Key
Open and ongoing communication with your children about online safety is crucial. Discuss the potential dangers they may encounter online, such as pornography, cyberbullying, and violent content. Encourage them to come to you with any concerns or questions they may have.
2. Set Clear Boundaries
Establish clear rules and boundaries regarding internet usage. Define appropriate time limits for browsing and specify which websites and apps are off-limits. Make sure your children understand the consequences of violating these rules. You can also restrict some of these apps or online content utilising device level parental controls explained below.
3. Utilise Parental Controls
Take advantage of the parental control features available on devices and internet browsers. These controls allow you to block access to specific websites, set age-appropriate content filters, and monitor your children's online activities. Familiarise yourself with the parental control options on smartphones, gaming consoles, and laptops to effectively manage your children's online experiences.
4. Educate Yourself
Stay informed about the latest trends and technologies related to online safety. Familiarise yourself with popular social media platforms, gaming communities, and messaging apps that your children may use, including the functions they provide. This knowledge will help you understand the potential risks and take appropriate action to protect your children.
5. Monitor Their Online Activities
Regularly monitor your children's online activities to ensure they are adhering to the rules and staying safe. Keep an eye on their browsing history, social media interactions, and messaging apps. Be vigilant for any signs of cyberbullying or exposure to inappropriate content.
6. Encourage Safe Online Behavior
Teach your children about the importance of practicing safe online behavior. Remind them never to share personal information, such as their full name, address, or phone number, with strangers online. Encourage them to think critically about the content they encounter and to report anything that makes them feel uncomfortable or unsafe.
7. Lead by Example
Be a positive role model for your children by demonstrating responsible and respectful online behavior yourself. Show them how to navigate the internet safely and responsibly, and emphasize the importance of treating others with kindness and empathy online.
8. Reporting abuse, making complaints and finding more information
For additional resources and guidance on online safety, visit the Australian e-Safety Commissioner's website at www.esafety.gov.au. Here, you'll find a wealth of information, including tips for parents, educational resources for children, and tools for reporting online abuse and harassment.
You can also report abuse through the website’s online form.
By following these tips and utilising available resources, you can help keep your children safe from pornography, cyberbullying, violent content, and other unsafe material while they navigate the internet. Remember, proactive measures and open communication are key to fostering a safe and positive online environment for your family.
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