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Feb 19, 2016 · Canon's Nano USM focusing motors have so far been used in the EF 18-135mm f/3.5-5.6 IS USM and EF 70-300mm f/4-5.6 IS II USM lenses. It is a type of AF motor that, like Ring USM, uses micro-piezo vibrations to move the lens focus elements.
Nov 10, 2011 · What does this mean, and why or why do I not want it? USM uses Ultrasonic wave to move the lens quicker to achieve more precise focusing. Unlike the traditional old fashion magnetic lens, USM is quieter and less friction during the lens movement, thus it does not waste energy/battery by creating human audible noise.
- Brand Lenses
- Canon Lenses
- Nikon Lenses
- Sony/Minolta Lenses
- Off-Brand Lenses
- Sigma Lenses
- Tamron Lenses
- Tokina Lenses
Most major camera manufacturers offer their own line of lenses. Such lenses tend to follow the most stringent quality guidelines, and often come with a price premium.
Canon lenses use the following terms to indicate features of each lens: 1. Common 1.1. XYZmm:Focal length 1.2. f/x.y:Maximum aperture 2. Focus/Mount Type 2.1. EF:Electronic Focus 2.2. EF-S:Short-Back Electronic Focus 2.3. EF-M:Mirrorless Electronic Focus 2.4. TS: Tilt-Shift 2.4.1. TS-E:Tilt-Shift, Electronic aperture control 2.5. MP-E:Macro-Photogr...
Nikon lenses use the following terms to indicate features of each lens: 1. Common 1.1. XYZmm:Focal length 1.2. f/x.y:Maximum aperture 2. Lens System 2.1. DX:Digital, Short Back 2.2. FX:Full Frame (film or digital) 3. Lens Mount 3.1. AI:Automatic Indexing mount (includes metering sensor) 3.2. AI-S:Improved Automatic Indexing mount 3.3. IX:Lenses des...
Sony lenses, previously Minolta lenses, have similar features to Nikon and Canon. Their notation is as follows: 1. Common 1.1. XYZ/x.y:Focal length/Maximum Aperture 2. Lens Mount Type 2.1. Alpha:α Type Mount 2.2. E:E Type Mount 3. Focusing System 3.1. SSM: In-Lens Super-sonic Motor 3.2. SAM: In-Lens Micro Motor 4. Features 4.1. G:Gold Series (highe...
Many off-brand lens manufacturers make lenses that fit many types of bodies, including Canon, Nikon, etc.
Sigma lenses use the following terms to indicate features of each lens. They differ slightly in how they denote aperture: 1. Common 1.1. XYZmm:Focal length 1.2. Fx.y:Maximum aperture 2. Compatible Body Brands 2.1. Sigma 2.2. Nikon 2.3. Canon 2.4. Minolta/Sony 2.5. Pentax 2.6. Kodak (extremely limited) 2.7. Fujifilm 2.8. Olympus (limited) 2.9. Panas...
Tamron lenses use the following terms to indicate features of each lens. Tamron offers a considerable degree of functional features and lens types, particularly lens types that affect chromatic aberration: 1. Common 1.1. XYZmm:Focal length 1.2. F/x.y:Maximum aperture 1.3. AF:Auto-Focus 2. Compatible Body Brands 2.1. Nikon 2.2. Canon 2.3. Minolta/So...
Tokina lenses use the following terms to indicate features of each lens: 1. Common 1.1. VW~XYZmm:Focal length 1.2. f/x.y:Maximum aperture 1.3. AF:Auto-Focus 2. Compatible Body Brands 2.1. Nikon 2.2. Canon 2.3. Minolta/Sony 2.4. Pentax 3. Features 3.1. AT-X Proprofessional line (primes and constant aperture zooms) 3.2. AT-Xconsumer line (variable ap...
Jul 16, 2010 · There's the original "XYZ f/1.2.3" lens and then a later "XYZ f/1.2.3 II" lens if the lens has the same focal length (s), maximum aperture (s), and AF type. There's the original EOS xxxxD camera body and then a subsequent xxxxD Mark II camera body.
May 2, 2022 · What do all those different numbers, letters & symbols on your camera lens mean? Find out here, in this EASY to understand guide to camera lenses.
Sep 30, 2004 · For instance the 75-300 USM has three versions. There is the oldest 75-300 f/4-5.6 USM that came out in 1992, then there is the 75-300mm f/4-5.6 USM II that came out in 1995 and finally there is the current 75-300mm f/4-5.6 USM III that came out in 1999. All three lenses use the same micro-USM.
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Nov 23, 2021 · The RF 100-400mm joins a powerful yet easily manageable pair of RF 600mm F11 IS STM and RF 800mm F11 IS STM primes, along with the more pro-spec Canon RF 100-500mm f/4.5-7.1 IS USM zoom lens.
