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f number

Synonyms

Noun

1. focal ratio

2. stop number, speed, ratio

Usage
Ema Locations - Silent Hill f Guide - IGN
Is Canon Developing Fast Zoom Lens For Compact Cameras? - The Phoblographer
Israeli Air Force claims destruction of “a number of Iranian F-14s” - The Aviation Geek Club
BIKE OF THE WEEK: PINARELLO DOGMA F - Road Bike Action
Canon Teases Us With a Canon RF 35mm f/1.2L - Canon Rumors
Trump administration cuts childhood vaccine recommendations nearly in half - Mother Jones
Stop Getting Noisy Photos: The Simple Low-Light Photography Fix - Fstoppers
Lockheed Martin delivered record number of F-35s in 2025 - Sandboxx
Lockheed Martin Delivered A Record Number Of F-35s Last Year: Here’s How - Simple Flying
Tamron patents a 28-70mm F2 lens - Newsshooter
British Carrier Hosts Largest Number Of F-35Bs On A Ship Ever - The War Zone
Canon RF 14mm f/1.4L VCM on the Way? - Canon Rumors
Ultra-Wide Aperture Lenses Explained - Fstoppers
Is Sigma Expanding Its F1.2 Lineup With New Prime Lenses? - The Phoblographer
Is a Canon RF 35mm f/1.2L USM on the Horizon? - Canon Rumors
Is Canon Finally Looking at Prosumer RF-S Lenses? - Canon Rumors
Canon Looking at Superzooms Again? - Canon Rumors
Canon RF 35mm f/1.2L USM - Canon Rumors
Canon Researches More High Quality Zooms - Canon Rumors
Canon RF 300mm f/2.8L IS USM 1.4x Appears - Canon Rumors
Switzerland cuts number of planned F-35 jets amid hike in procurement costs - Anadolu Ajansı
Possible Canon RF 45mm f/1.2 STM Patent Published - Canon Rumors
The World’s Largest Air Forces By Number Of F-35s - Simple Flying
Pagani Zonda F jusT Wrecked In Italy As Restoration Questions Loom - HotCars
Just announced: Brightin Star 50mm f/1.05 Full-Frame Manual Focus FE lens - SonyAlphaRumors
Three more F-35s set to land with Lightning Force, but four others to be delayed - Forces News
The World’s Largest Air Forces By F-35 Numbers - Simple Flying
F-35 Lightning II fighter pogramme in crisis: rising costs, TR-3 delays and engine modernisation failures - Defence Industry Europe
We May Get Affordable Fujifilm Wide Angle Zooms Soon - The Phoblographer
Why the OM SYSTEM 50-200mm f/2.8 Could Be the Ultimate Travel Lens - Fstoppers
Tokyo to reduce number of F-15Js to be upgraded - FlightGlobal
All the BMW E, F and G codenames explained - Car Magazine
Internal Zoom 18-50mm f/4 & 70-200mm f/4 Optical Designs Appear - Canon Rumors
Exclusive: First Leaked Image of the Bokeh King – Sigma 135mm f/1.4 - SonyAlphaRumors
Largest number of F-35B jets ever assembled on Royal Navy aircraft carrier arrives for Med exercise - Royal Navy
Sony's high-end digital camera 'RX1R III' with a specially designed 35mm single-focus lens and full-size sensor is reviewed and taken outdoors for various shots. - GIGAZINE
Canon RF 200-500mm f/4L IS USM spotted in new patent application - Canon Rumors
Metasurface folded lens system for ultrathin cameras - Science | AAAS
Mobile Mondays: Crush Portrait Mode with this simple, yet relatively unknown, trick - Photofocus
Trump lauds “beautiful number” F-47: how the U.S. Military and others name their aircraft - Diario AS
Patent Application: The Zoom You’ve Dreamt About: Canon RF 70-150mm f/2L IS USM - Canon Rumors
Donald Trump, the nation’s 47th president, says name of new F-47 jet is ‘a beautiful number’ - Washington Times
Canon Patent Application: Small Primes for Compact APS-C and Full Frame - Canon Rumors
Canon Patent: RF 20mm F1.4 VCM, 21mm F1.4 VCM, 28mm F1.4 VCM - Canon Rumors
Canon Patent Application: Lenses with Optical Distortion Correction - Canon Rumors
Canon Patent Application: Telephoto Macro Lenses - Canon Rumors
Electron microscope detector achieves record resolution - University of Chicago News
Patent Application: Canon RF Power Zooms - Canon Rumors
Troop F - Maine.gov
Improving plane wave ultrasound imaging through real-time beamformation across multiple arrays - Nature
Canon Patent Application: Canon RF 20-60mm F2.8 - Canon Rumors
‘Too f—— low’: Trump angry over ICE arrest numbers, source says - NewsNation
Canon is working on an f/0.7 lens that would break the speed limit - Digital Camera World
Sony to announce FE 16mm f/1.8 and FE 400-800mm f/6.3-8 in February - Canon Rumors
The number of major F-35 flaws is shrinking, but the Pentagon is keeping details of the problems under wraps - Defense News
Canon Patent Application: Super Telephoto 200-1000mm - Canon Rumors
Patent Application: Super Telephoto Primes - Canon Rumors
‘Succession’ and the F-word, by the Numbers - The Ringer
Canon Has New Lens Patents, But Are They Worth The Wait? - The Phoblographer
Turns out 37C isn’t normal body temperature after all - Today's Parent
Marine Corps Aviation Plan Reduces Number of F-35s in Some Squadrons, Keeps 420 F-35s Total - Seapower Magazine
The Effect of Curling on Floor Flatness - For Construction Pros
Post Malone’s ‘F-1 Trillion’ Revs In at No. 1 on Billboard 200 Chart - Billboard
Canada to double number of F-16 flight simulators for Ukraine - Ukrinform
Number 5: Transbay Parcel F at 550 Howard Street, SoMa, San Francisco - San Francisco YIMBY
Mapcamera January sales ranking: Ricoh GR IIIx was their best selling camera - SonyAlphaRumors
Ford Recalls Small Number of F-150 Trucks for Steering Issue - Kelley Blue Book
Will a 50mm f/1.8 prime lens do? Or do I pay through the nose to get an f/1.2? - Digital Camera World
The Canon RF 600mm f/11 IS STM and RF 800mm f/11 IS STM were inspired by lenses from the 1960's - Canon Rumors
Canon patents optical formula for an RF 200-500mm f/4L IS 1.4x - Canon Rumors
What the F-Stop? Camera Lens Names and Numbers Explained - PCMag Australia
USMC to reduce the number of F-35 Lightning II strike fighters in some squadrons - The Aviation Geek Club
The Kid LAROI’s ‘F*ck Love’ Jumps to No. 1 on Billboard 200 Albums Chart - Billboard
‘Small Number’ Of U.S. And International F-35s Grounded After F-35B Incident At Fort Worth - The Aviationist
Hill Air Force Base launches record number of F-35s - Air Force Times
Patent: Some crazy fast RF mount prime lenses, including an RF 18mm f/1.0L - Canon Rumors
GraphSAGE: Scaling up Graph Neural Networks - Towards Data Science
Patent: Canon RF 10-24mm f/4 and Canon RF 14-28 f/2.0 - Canon Rumors
An Air Force F-22 Raptor unit just fired off a record number of air-to-air missiles - Task & Purpose
The 18 Most Profane Movies of All Time, Ranked by the Number of F-Bombs - Collider
Largest Number of F-35s Put Out to Sea in 'Lightning Carrier' Test - Business Insider
Patent: Canon RF 100-400mm f/3.5-5.6L IS and more - Canon Rumors
Patent: Canon RF 28mm f/1.8 & RF 50mm f/1.8 - Canon Rumors
Patent: Canon RF 35mm f/1.2L USM as well as an RF 24mm f/1.2L USM and RF 28mm f/1.2L USM - Canon Rumors
TTArtisan 32mm f/2.8 Autofocus Fujifilm X Mount Coming Tomorrow - Fuji Rumors
How to control the F Stop on your iPhone and take perfect photos every time - Android Authority
Sony fires shots at Canon with a potential 24-70mm f/2 lens - Digital Camera World
This is why your iris and waveform display don't work together in the way you might think - Red Shark News
Patent: Canon RF 135mm f/1.4L DS USM optical formula - Canon Rumors
Number of days with temperatures above 95°F to soar in L.A. County - Los Angeles Times
Leica launches new 'Pro workhorse' 70–200mm f/2.8 zoom & 2x teleconverter - Digital Camera World
News - Holloman’s ORE produces record number of F-22 launches - DVIDS
Post Malone secures third UK Number 1 album with F-1 Trillion - Official Charts
Patent: Canon RF 50-80mm f/1.1, because crazy is good - Canon Rumors
Canon patent hints at three f/1.4 fast prime lenses on the horizon - Digital Camera World
f/0.7: A Look at Lenses With Some of the Most Extreme Apertures Out There - Fstoppers
Patent: Canon EF 50mm f/1.4 with apodization filter - Canon Rumors
Patent: Canon RF 180mm f/3.5L Macro and Canon RF 200mm f/4L Macro - Canon Rumors
Patent: Canon RF 35mm f/1.4 Soft Focus - Canon Rumors
Patent: Canon RF 85mm f/1.4L USM (IS?) - Canon Rumors
Foreign Language Equivalents
Foreign Language Equivalents of 'f number'
Language Equivalent   Language Equivalent
French    Spanish
Misspellings - Typos
f nymber,   f numbre,   f numbe,   f nuumber,   f numbor,   ff number,   f numbet,   f nuber,   f nu,ber,   f nimber,   f numner,   f numbrr,   f nummber,   f unmber,    fnumber,   f bumber,   g number,   f numbee,   f mumber,   f numver,   f numbr,   fnumber,    number,   d number,   fn umber,   f umber,   f number,   f numbeer,   f numer,   f numbber,   f nunber,   f numebr,   f numberr,   f nubmer,   f numbwr,   f nmber,   f nnumber,   f nmuber
Words Starting with Letter - 'A'
a a battery a billion
a bit a bit much a capella singing
a cappella singing a couple of a few
a fortiori a good deal a great deal
a horizon a hundred a hundred and one
a hundred thousand a hundred times a kempis
a la carte a la mode a level
a little a lot a million
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