On a lens, aperture is denoted with an F-stop really just another name for aperture. This may also be denoted by an If you look at a lens, the number that follows the F tells you the widest point that the aperture can go. Although it may seem counterintuitive, the smaller the number following the F, the wider the aperture!
Name Variations: mm F When there are two apertures given, this is a variable-aperture zoom lens showing the maximum aperture at the widest and longest focal lengths. That funky symbol denotes the filter thread. A filter thread expresses the diameter of the front lens element so that you can add, well, a filter to it!
Filters are additional panes of glass that you screw or attach on to the front of your lens. However, there are also filters that serve a purpose other than protection, such as Neutral Density filters and Polarizing filters. If a lens does not offer a filter thread radius, is genereally does not accept front filters. The frame size on a lens tells you what kind of camera the lens was intended for.
And DN denotes mirrorless camera format. Lenses are made to fit the sensors they are designed for. Because a crop camera sensor is smaller than a full frame sensor, crop cameras have a smaller area to capture a scene.
With a crop sensor, the angle of view is narrower. Crop specific lenses are made to be perfectly compatible with these sensors, so what you see is what you get. This is true for full frame lenses that are intended for a full frame sensor, what you see with a full frame lens on a full frame sensor is what you get.
Crop sensor cameras are able to utilize both crop lenses and full frame lenses. You see, the lens will reduce in the angle of viewing but still be very effective. Photography Stack Exchange is a question and answer site for professional, enthusiast and amateur photographers. It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search.
Possible Duplicate: What do all those cryptic number and letter codes in a lens name mean? The mechanism is usually ultrasonic. For Nikon Lenses here's complete list , straight from the official web site.
The "problem" with lens acronyms is that each company has its own and you usually end up with different letters for the same features. For more info read the answers to this question. Sign up to join this community. DC lenses have an image circle that covers APS-C size image sensors, therefore they are not for use on digital cameras having image sensors larger than APS-C size or on 35 mm or APS film cameras, as vignetting will occur.
To find the 35mm camera equivalent focal length, multiply the DC lens focal length by the "crop factor" digital multiplier of the brand of DSLR camera on which the lens will be used. Remarkable image rendition is achieved by comprehensive correction of aberrations and distortions.
Special care is taken to thoroughly minimize colour fringing caused by lateral chromatic aberration which is particularly noticeable at high resolution in digital photography.
DG lenses can offer both high contrast and subtle tonal gradations, unmarred by flare and ghosting, thanks to Sigma's digitally-optimized optical design and original Super Multi-Layer Coating technology which suppress reflections between image sensor and lens surfaces. Large image circles assure ample peripheral illumination to prevent vignetting. If you're looking for the perfect drone for yourself, or to gift someone special, we've gone through all of the options and selected our favorites.
We looked at cameras with selfie-friendly screens, wide-angle lenses, microphone inputs and great video quality, and selected the best. Watch his review to find out why. Recently the winners and runners up were announced for the Natural Landscape Photography Awards. The new version of the digital asset management tool promises improved performance and includes a new UI, new editing tools and improved workflow options.
Nikon doesn't specifically mention any future products, but does state the collaboration with Nissin and Profoto will 'increase reliable options for Nikon camera users, expanding possibilities for imaging expression'.
Despite being a copy of a model from a far more popular manufacturer at its time of release, the Lomo LC-A has become an iconic camera in film photography culture and was the catalyst for the experimental 'Lomography' movement.
Zenfolio has announced the acquisition of Format, a popular website-building platform for photographers and other artists. The acquisition further bolsters Zenfolio's ongoing efforts to reinvigorate its business model and position itself a strong option for photographers looking to build a website and run a business. The 'Deakinizer' lens was made and popularized by cinematographer Roger Deakins when he used a modified Arri Macro lens to capture dreamy, tilt-shift like shots for the movie Assassination of Jesse James by the Coward Robert Ford.
NASA has published the first images from Landsat 9, a new space-based satellite designed to observe Earth in incredible detail. Geological Survey. But how much difference does the longer 40mm equivalent lens of the 'X' version make to the shooting experience? Click through to read more. Want to learn more about the Nikon Z9? Do you have a burning question you haven't seen answered anywhere else? Join us for a live Twitter Space on Thursday, November 11, and be part of the conversation.
Click through for details. The four firmware updates bring improved autofocus performance in a number of different shooting modes, as well as support for Nikon's new FTZ II mount adapter and Nikkor Z mm F4 S lens. Adrian Smith is back with another excellent slow-motion video of insects filmed with a high-speed Phantom camera. The original Tamron mm F2. Now Tamron is back with a second gen version that promises to be even better. Does it deliver on that claim?
Chris and Jordan did a side-by-side comparison to find out. Check out their gallery of sample photos to judge critical image quality for yourself. The lens will be a part of Panasonic's F1. Aptolux is a new company formed by videographers to create lighting solutions for videographers. Its first product is the Aptolux MP-1, a modular, transforming LED light that can be as compact as a lunchbox when not being used yet deliver bright, efficient light.
Sony's latest a7-series model is the most capable yet, but also the most expensive. We've been using Panasonic's new Lumix S 35mm F1. Panasonic has announced the Lumix S 35mm F1. Panasonic has released firmware version 1.
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