--- title: What is a Varifocal Lens? description: Find out what a Varifocal Lens is and its role in your business security system. image: https://blog.dga.com/hubfs/Learn%20The%20Security%20Lingo%20-%20varifocal%20lens2.jpg --- [![cropped-DGA-Security-Logo-nsr-1-1](https://blog.dga.com/hubfs/Assets/logo/cropped-DGA-Security-Logo-nsr-1-1.png)](https://www.dga.com/) Search For: - [Contact](https://www.dga.com/contact/) - [Login](https://connect.dga.com/) - [Careers](https://www.dga.com/careers/) [Get A Free Consultation](https://www.dga.com/free-consultation/) - [Business Security](https://www.dga.com/business-security/) - [Intrusion Alarms](https://www.dga.com/business-security/intrusion-alarms/) - [Video Surveillance](https://www.dga.com/business-security/video-surveillance/) - [Access Control](https://www.dga.com/business-security/access-control/) - [Security System Monitoring](https://www.dga.com/business-security/alarm-monitoring/) - [Environmental Monitoring](https://www.dga.com/business-security/environmental-monitoring/) - [Elevator Emergency Communication](https://www.dga.com/business-security/elevator-emergency-communication/) - [Fire Systems](https://www.dga.com/fire-systems/) - [Design and Installation](https://www.dga.com/fire-systems/design-installation/) - [Testing and Inspection](https://www.dga.com/fire-systems/testing-and-inspection/) - [Fire Alarm System Monitoring](https://www.dga.com/fire-systems/alarm-monitoring/) - [Contractor Support](https://www.dga.com/fire-systems/contractor-support/) - [Industries](https://www.dga.com/industries/) - [Art Galleries](https://www.dga.com/industries/art-gallery-security/) - [Banking and Financial](https://www.dga.com/industries/bank-security/) - [Cannabis](https://www.dga.com/industries/cannabis-security/) - [Hotels](https://www.dga.com/industries/hotel-security/) - [Jewelry](https://www.dga.com/industries/jewelry-security/) - [Nonprofits](https://www.dga.com/industries/nonprofit-security/) - [Offices](https://www.dga.com/industries/office-security/) - [Property Management](https://www.dga.com/industries/property-security/) - [Religious Institutions](https://www.dga.com/industries/religious-institution-security/) - [Restaurants](https://www.dga.com/industries/restaurant-security/) - [Retail](https://www.dga.com/industries/retail-security/) - [Tools](https://www.dga.com/tools) - [DGA Blog](https://blog.dga.com) Search For: [Business Security](https://www.dga.com/business-security/) Business Security [Intrusion Alarms](https://www.dga.com/business-security/intrusion-alarms/) [Video Surveillance](https://www.dga.com/business-security/video-surveillance/) [Access Control](https://www.dga.com/business-security/access-control/) [Security System Monitoring](https://www.dga.com/business-security/alarm-monitoring/) [Environmental Monitoring](https://www.dga.com/business-security/environmental-monitoring/) [Elevator Emergency Communication](https://www.dga.com/business-security/elevator-emergency-communication/) [Fire Systems](https://www.dga.com/fire-systems/) Fire Systems [Design and Installation](https://www.dga.com/fire-systems/design-installation/) [Testing and Inspection](https://www.dga.com/fire-systems/testing-and-inspection/) [Fire Alarm System Monitoring](https://www.dga.com/fire-systems/alarm-monitoring/) [Contractor Support](https://www.dga.com/fire-systems/contractor-support/) [Industries](https://www.dga.com/industries/) Industries [Art Galleries](https://www.dga.com/industries/art-gallery-security/) [Banking and Financial](https://www.dga.com/industries/bank-security/) [Cannabis](https://www.dga.com/industries/cannabis-security/) [Hotels](https://www.dga.com/industries/hotel-security/) [Jewelry](https://www.dga.com/industries/jewelry-security/) [Nonprofits](https://www.dga.com/industries/nonprofit-security/) [Offices](https://www.dga.com/industries/office-security/) [Property Management](https://www.dga.com/industries/property-security/) [Religious Institutions](https://www.dga.com/industries/religious-institution-security/) [Restaurants](https://www.dga.com/industries/restaurant-security/) [Retail](https://www.dga.com/industries/retail-security/) [Tools](https://www.dga.com/tools) [DGA Blog](https://blog.dga.com) [Contact](https://www.dga.com/contact/) [Login](https://connect.dga.com/) [Careers](https://www.dga.com/careers/) Get A Free Consultation - Categories [Subscribe](https://info.dga.com/blog-subscriptions) - [Access Control](https://blog.dga.com/tag/access-control) - [Fire Systems](https://blog.dga.com/tag/fire-systems) - [Intrusion Alarms](https://blog.dga.com/tag/intrusion-alarms) - [Video Surveillance](https://blog.dga.com/tag/video-surveillance) - [Security Terms](https://blog.dga.com/tag/security-terms) [«  View All Posts](https://blog.dga.com) [Video Surveillance](https://blog.dga.com/topic/video-surveillance) | [Security Terms](https://blog.dga.com/topic/security-terms) # What is a Varifocal Lens? - Share This Article - - - - [mailto:?body=https://blog.dga.com/what-is-varifocal-lens](mailto:?body=https://blog.dga.com/what-is-varifocal-lens) October 10th, 2024 | 1 min. read ![What is a Varifocal Lens?](https://blog.dga.com/hubfs/Learn%20The%20Security%20Lingo%20-%20varifocal%20lens2.jpg) ![Blog Feature](https://cdn2.hubspot.net/hubfs/298890/blog-files/blog--cards-feature.png) [Subscribe](https://info.dga.com/blog-subscriptions) ![Isabel Leckie](https://blog.dga.com/hubfs/Isabel%20Leckie.jpg "Isabel Leckie") [Isabel Leckie](https://blog.dga.com/author/isabel-leckie) Isabel is a Marketing Specialist at DGA. Unlike a [wide](https://blog.dga.com/what-is-wide-angle-lens) or [narrow angle lens](https://blog.dga.com/what-is-telephoto-lens), a varifocal lens is a camera lens that can be adjusted to provide either a wide or narrow field of view. Varifocal lenses have more versatility than other types of lenses as they can be adjusted for the environment they are in, making them suitable for open spaces like parking lots and tight areas like hallways or alleys. They are often found in [standard dome cameras](https://blog.dga.com/why-invest-professionally-installed-security-camera-system) which are the most widely used type of dome camera. ![network-dome-security-camera](https://blog.dga.com/hs-fs/hubfs/dga-blog/network-dome-security-camera.jpg?width=400&height=267&name=network-dome-security-camera.jpg)   [![DGA Security](https://blog.dga.com/hubfs/Assets/logo/cropped-DGA-Security-Logo-nsr-1-1.png)](https://www.impactbnd.com) 429 West 53rd Street New York, New York 10019 ##### Contact Sales 800 PICK DGA (800-554-5599) sales@dga.com ##### Contact Customer Care [customercare@dga.com](mailto:customercare@dga.com) 800-221-2300 ##### [Business Security](https://www.dga.com/business-security/) - [Intrusion Alarms](https://www.dga.com/business-security/intrusion-alarms/) - [Video Surveillance](https://www.dga.com/business-security/video-surveillance/) - [Access Control](https://www.dga.com/business-security/access-control/) - [Security System Monitoring](https://www.dga.com/business-security/alarm-monitoring/) - [Environmental Monitoring](https://www.dga.com/business-security/environmental-monitoring/) - [Elevator Emergency Communication](https://www.dga.com/business-security/elevator-emergency-communication/) - [Nationwide Service](https://www.dga.com/business-security/nationwide-service/) - [The DGA Vault at 580 Fifth Avenue](https://www.dga.com/vault/) ##### [Fire Alarm Systems](https://www.dga.com/fire-systems/) - [Design and Installation](https://www.dga.com/fire-systems/design-installation/) - [Testing and Inspection](https://www.dga.com/fire-systems/testing-and-inspection/) - [Fire Alarm System Monitoring](https://www.dga.com/fire-systems/alarm-monitoring/) - [Contractor Support](https://www.dga.com/fire-systems/contractor-support/) ##### [Industries](https://www.dga.com/industries/) - [Art Galleries](https://www.dga.com/industries/art-gallery-security/) - [Banking and Financial](https://www.dga.com/industries/bank-security/) - [Cannabis](https://www.dga.com/industries/cannabis-security/) - [Hotels](https://www.dga.com/industries/hotel-security/) - [Jewelry](https://www.dga.com/industries/jewelry-security/) - [Nonprofits](https://www.dga.com/industries/nonprofit-security/) - [Offices](https://www.dga.com/industries/office-security/) - [Property Management](https://www.dga.com/industries/property-security/) - [Religious Institutions](https://www.dga.com/industries/religious-institution-security/) - [Restaurants](https://www.dga.com/industries/restaurant-security/) - [Retail](https://www.dga.com/industries/retail-security/) ##### [Tools & Training](https://www.dga.com/tools/) - [DGAConnect Login](https://connect.dga.com/) - [DGAOneVIEW Login](https://dgaoneview.com/login#) - [DGA Payment Login](https://payment.mydga.com/login.aspx) - [Free System Training](https://www.dga.com/free-system-training) ##### [About DGA](https://www.dga.com/company/) - [Blog](https://blog.dga.com/) - [Careers](https://www.dga.com/careers/) - [Credentials](https://www.dga.com/credentials/) - [Meet Business Insurance Requirements](https://www.dga.com/meet-business-insurance-requirements/) © 2026 DGA Security Systems, Inc. | [Privacy Policy and Terms of Use](https://www.dga.com/privacy-policy/)