Zoom lens

Aperture commands from your URSA Broadcast G2 or ATEM switcher. Push Auto/Iris Use this button to momentarily activate auto aperture control while in manual mode. This can be combined with iris controls on your camera or ATEM switcher to great effect. For example, with your camera set to an iris based auto exposure mode and your lens aperture set to manual, you can freely adjust your lens iris by using the aperture ring on the lens barrel, however tapping the push auto/iris button will momentarily activate auto exposure, adjusting your iris for the current lighting conditions. Alternatively, you can set an iris value using the controls on your URSA Broadcast G2s LCD touchscreen. While in manual mode, you are free to adjust lens aperture using the aperture ring on the lens barrel, but tapping the push auto/iris button will return the lens to the preset value on your touchscreen. 12Using Servo Zoom Lenses Zoom On the underside of most B4 handgrips, youll find a zoom switch that can be set to servo or manual. This controls zoom behavior. Servo Set this switch to servo or s to enable servo zoom control. In this mode, the rocker switch on your handgrip can be used to zoom your lens in and out, as well as any other zoom related controls, such as zoom speed and quickzoom. Your lens will also accept zoom commands from URSA Broadcast G2, Blackmagic Zoom Demand and ATEM switchers, so long as it is connected to the camera via the lens connector. In this mode, you typically cant adjust your lenss manual zoom ring. TIP Handgrip zoom rockers are typically linked to zoom speed. Push the rocker down gently to zoom slowly, push down harder to zoom more rapidly. Manual Set this switch to manual or m to disable servo control and adjust zoom using the zoom ring on your lens barrel. In this mode, your lens will not accept zoom commands from the handgrip, URSA Broadcast G2, or ATEM switchers. 13Using Servo Zoom Lenses Focus Some B4 lenses also have focus servo controls. If this control is present on your lens, youll see a focus switch on the underside of the handgrip with two settings, servo and manual. Servo Set this switch to servo or s to enable servo focus control. In this mode, your lens can accept focus commands from URSA Broadcast G2, Blackmagic Focus Demand or an ATEM switcher via the lens connector. Manual Set this switch to manual to use the focus ring on the lens barrel to control focus. B4 lenses tend to autofocus quite slowly, so using manual control is more common. NOTE Analog B4 lenses with servos are also supported although

Quick Links What Does Zoom Actually Mean? Zoom, like a lot of camera specs, is a bit more complicated than advertising campaigns would have you believe. Smartphone manufacturers like Samsung are now boasting 10x, 50x, or even 100x zoom. But is this even possible? Let’s look at the differences between optical and digital zoom. What Does Zoom Actually Mean? What is zoom, and what does it mean to have a 5x or 10x? In terms of optical physics, not a lot because there’s no such thing as zoom. Lens magnification (how much a lens magnifies distant objects) is a function of its focal length and the resulting field of view. A lens with a longer focal length (relative to the size of the image sensor) has a smaller field of view. This makes distant objects appear closer than they would through a lens with a shorter focal length. There are enough factors at play that lenses aren’t sold based on how much they magnify objects; rather, they're sold based on their focal length. Zoom, as we use it now, is basically a marketing concept popularized by compact cameras. Originally, it was the ratio between the shortest and longest focal lengths of a lens. So, a 10mm-100mm lens had 10x zoom, while a 25mm-100mm lens had a 4x zoom. This meant a lens with 10x zoom didn't necessarily make things look 10 times bigger. Smartphone manufacturers, however, use zoom slightly differently. A 1x zoom is broadly accepted as the field of view of the main camera. Smartphones like the iPhone 11 Pro add an even wider lens and call it a 0.5x zoom, rather than resetting 1x to the new widest angle. Unlike with compact cameras, this means you can expect mostly the same rough magnification with different 10x-zoom smartphones. If you want to know more, you can check out this piece on how zoom specs are calculated. All you really need to know, though, is zoom depends on the underlying focal length of a lens and the size of the sensor---and that it’s a bit disconnected from reality. But what's the difference between optical and real zoom (I'll keep using this word for the sake of convenience, but what I really mean is "apparent magnification" or "narrower relative field of view")? How Optical Zoom Works Optical zoom is when the physical properties of a lens genuinely magnify distant objects. For example, a telescope is all optical zoom. If you view the moon through one, it looks bigger. There’s no loss in quality---objects just appear closer. The optical zoom comes from lenses with long focal lengths that are at least relative to the camera’s sensor size. A long telephoto lens for

Lenses filters in Categories: Electronics & Appliances > Television / Home Theater > Projectors lenses filters in Products: Om System V335310BW000 Lens - M.ZUIKO DIGITAL 40 mm to 150 mm f/22 f/2.8 Varifocal 72 mm Attachment 0.21x Magnification 3.8x Optical Zoom $1435.48 Om System V335940BW000 Lens - M.ZUIKO DIGITAL 9 mm to 18 mm f/4 f/22 Super Wide Angle Varifocal Designed for Digital Camera 52 mm Attachment 0.20x Magnification 2x Optical Zoom 1.9" Length 2.2" Diameter $685.21 Om System V335290BW000 Lens - M.ZUIKO DIGITAL 45 mm f/16 f/1.2 Fixed 62 mm Attachment 0.10x Magnification $1339.78 Om System V335930BW000 Lens - M.ZUIKO DIGITAL 150 mm to 600 mm f/6.3 f/5 Telephoto Varifocal for Micro Four Thirds Designed for Digital Camera 4x Optical Zoom 10.4" Length 4.3" Diameter Black $2582.78 Om System V335270BW000 Lens - M.ZUIKO DIGITAL 12 mm to 100 mm f/22 f/4 Wide Angle, Landscape/Macro, Aspherical Zoom 72 mm Attachment 0.30x Magnification 8.3x Optical Zoom 4.6" Length 3.1" Diameter $1339.78 Om System V335400BW000 Lens - M.ZUIKO DIGITAL 75 mm to 300 mm f/6.7 f/4.8 Super Telephoto Varifocal Designed for Digital Camera 0.36x Magnification $555.70 Om System V335260BW000 Lens - M.ZUIKO DIGITAL 25 mm f/1.2 f/16 Fixed 62 mm Attachment 0.11x Magnification $1339.78 Om System V335390BW000 Lens - 40 mm to 150 mm f/5.6 f/4 Varifocal 3.8x Optical Zoom Black $203.12 Ubiquiti UVC-AI-Theta-ProLens50 Lens - Fixed Designed for Surveillance Camera 1.4" Diameter $152.35 Om System V335160BW000 Lens - 12 mm to 45 mmf/4 Zoom 3.7x Optical Zoom $685.21

Targeted at those looking for a 35mm film camera with a wide-angle zoom lens, and who want a simple to operate, point and shoot model. 20 Jun 2002 12:00AM by ePHOTOzine| Film Compacts The new Lite Touch Zoom 70Ws 35mm compact camera is targeted at those looking for a 35mm film camera with a wide-angle zoom lens, and who want a simple to operate, point and shoot model. In addition to the features and performance of its predecessor, the Lite Touch Zoom 70W features a lens barrel that matches the colour of the camera body, and a built-in flash that pops up automatically when the camera is turned on, and retracts when the camera is turned off. The Lite Touch Zoom 70Ws has a compact body housing a 2.5x zoom lens, letting users easily frame images within a 28-70mm range. The lens features a multilayer coating which minimizes reflection, for superior colour balance and reproduction. There's also a built-in sliding lens cover for protection. The intelligent built-in flash pops up, ready to fire, as soon as the camera is turned on. It features a number of versatile flash functions which include Auto Flash, Flash Cancel, Anytime Flash and Night Portrait (Slow Sync Flash), in addition to Red-Eye Reduction, offering the flexibility to cover a variety of shooting situations. Its fully automatic operation simplifies use. The flash retracts automatically when the camera is switched off.Nikon Lite Touch Zoom 70Ws Major Features- 35mm 2.5x zoom lens with sliding lens cover - 2.5x 28-70mm zoom lens takes pictures from wide-angle to telephoto - Flash modes - choose from Auto Flash, Flash Cancel, Anytime Flash and Night Portrait (Slow Sync Flash) - Red-Eye Reduction helps eliminate the reddish appearance that can occur when shooting in low-light conditions - User-friendly automatic film operation - Self-timer mode lets the photographer be part of the picture Support this site by purchasing Plus Membership, or shopping with one of our affiliates:Amazon UK,Amazon US,Amazon CA,ebay UK,MPB. It doesn't cost you anything extra when you use these links, but it does support the site, helping keep ePHOTOzine free to use, thank you. View Directory Page : Nikon Other articles you might find interesting... ADVERTISEMENT