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f number

Synonyms

Noun

1. focal ratio

2. stop number, speed, ratio

Usage
IAM Union Applauds Record Number Of Bipartisan Members Of Congress For Strong Funding Request For F-35 Program - IAM Union
Is Canon Finally Looking at Prosumer RF-S Lenses? - Canon Rumors
Trump administration cuts childhood vaccine recommendations nearly in half - Mother Jones
Lockheed Martin delivers record number of F-35s in 2025, surpasses 2021 total - Janes
Lockheed Martin delivered record number of F-35s in 2025 - Sandboxx
How HVAC Pros Say To Set Your Thermostat When Temperatures Drop Below Freezing - Realtor.com
The World’s Largest Air Forces By Number Of F-35s - Simple Flying
Is Canon Developing Fast Zoom Lens For Compact Cameras? - The Phoblographer
Ultra-Wide Aperture Lenses Explained - Fstoppers
Olympus 40-150mm f/4-5.6 ED M.Zuiko Digital - Imaging Resource
Switzerland cuts number of planned F-35 jets amid hike in procurement costs - Anadolu Ajansı
Canon Teases Us With a Canon RF 35mm f/1.2L - Canon Rumors
Lockheed Martin Delivered A Record Number Of F-35s Last Year: Here’s How - Simple Flying
Is Sigma Expanding Its F1.2 Lineup With New Prime Lenses? - The Phoblographer
Canon RF 14mm f/1.4L VCM on the Way? - Canon Rumors
Did Canon Just Reveal Its Next VCM Prime Lens? - Canon Rumors
Canon RF 35mm f/1.2L USM - Canon Rumors
Is a Canon RF 35mm f/1.2L USM on the Horizon? - Canon Rumors
Canon Researching a 300mm f/2.0L and 200mm f/1.8L - Canon Rumors
Possible Canon RF 45mm f/1.2 STM Patent Published - Canon Rumors
Tamron patents a 28-70mm F2 lens - Newsshooter
shownews - Germany set to increase the number of F-127 frigates to 8; could cancel F-126 - FW-MAG Future Warfare Magazine
Why the OM SYSTEM 50-200mm f/2.8 Could Be the Ultimate Travel Lens - Fstoppers
F-1, J-1 Student Visa Issuances Dropped in May - Inside Higher Ed
Canon to Develop Compact Telephoto Lenses, Reveals New Patent - The Phoblographer
Lockheed Martin F-35 Lightning II fighter pogramme in crisis: rising costs, TR-3 delays and engine modernisation failures - Defence Industry Europe
Canon EF-S 60mm f/2.8 Macro USM - Imaging Resource
Swiss F-35: Fixed price collapsed, number of units shaky - Militär Aktuell
All the BMW E, F and G codenames explained - Car Magazine
Mobile Mondays: Crush Portrait Mode with this simple, yet relatively unknown, trick - Photofocus
Canon EOS 100D Detailed Specs Appear - Canon Rumors
Canon Patent Application: Fast APS-C Prime Lens optical designs - Canon Rumors
Canon Patent Application: Canon RF 20-60mm F2.8 - Canon Rumors
Post Malone’s ‘F-1 Trillion’ Revs In at No. 1 on Billboard 200 Chart - Billboard
Patent: EF-M 16-50mm f/3.5-5.6 - Canon Rumors
Patent: Canon EF 28-560mm f/2.8-5.6 - Canon Rumors
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
Sigma coming for Canon with an 180-800mm f/5.6-8? - Canon Rumors
Marine Corps Aviation Plan Reduces Number of F-35s in Some Squadrons, Keeps 420 F-35s Total - Seapower Magazine
Canon Patent Application: Super Telephoto 200-1000mm - Canon Rumors
Patent: Canon EF 1000mm f/5.6 IS DO - Canon Rumors
Number 5: Transbay Parcel F at 550 Howard Street, SoMa, San Francisco - San Francisco YIMBY
The Nikon 35mm f1.2 Just Came Out. Why is There a New Patent? - The Phoblographer
Patent Application: Full frame and Super-35 Primes - Canon Rumors
Internal Zoom 18-50mm f/4 & 70-200mm f/4 Optical Designs Appear - Canon Rumors
Ford Recalls Small Number of F-150 Trucks for Steering Issue - Kelley Blue Book
Patent Application: Super Telephoto Primes - Canon Rumors
Patent: Canon RF-S 15-70mm f/4 and RF-S 15-85mm f/2.8-4 - Canon Rumors
Canon patents optical formula for an RF 200-500mm f/4L IS 1.4x - Canon Rumors
Canon Patent: RF 85mm F1.8L, RF 100mm F1.8L IS, RF 135mm F1.8L IS, RF 150mm F1.8L IS - Canon Rumors
Canon Has New Lens Patents, But Are They Worth The Wait? - The Phoblographer
Photo Essay: Eglin F-35 number increases to four > Air Force > Article Display - af.mil
Canon Patent Application: RF-S 15-60 F2.8 Z, RF 22-80mm F2.8 Z - Canon Rumors
Hill Air Force Base launches record number of F-35s - Air Force Times
USMC to reduce the number of F-35 Lightning II strike fighters in some squadrons - The Aviation Geek Club
f/0.7: A Look at Lenses With Some of the Most Extreme Apertures Out There - Fstoppers
Patent: Canon RF 20mm f/1.8L and RF 24mm f/1.8L - Canon Rumors
Here's Why Canon's RF f/1.2 primes and Nikon's Z f/1.8 Mirrorless Primes Are Both Smart Ideas - SLR Lounge
What the F-Stop? Camera Lens Names and Numbers Explained - PCMag Australia
An Air Force F-22 Raptor unit just fired off a record number of air-to-air missiles - Task & Purpose
Patent: Canon continues development of EF supertelephoto lenses - Canon Rumors
GraphSAGE: Scaling up Graph Neural Networks - Towards Data Science
Patent: Canon RF 85mm f/1.4L USM (IS?) - Canon Rumors
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
Patent: Canon RF 135mm f/1.4L USM - Canon Rumors
The 18 Most Profane Movies of All Time, Ranked by the Number of F-Bombs - Collider
Overcoming My Photo Entekaphobia: The Fear of Shooting at f/11 - PetaPixel
Canon patent hints at three f/1.4 fast prime lenses on the horizon - Digital Camera World
BIKE OF THE WEEK: PINARELLO DOGMA F - Road Bike Action
News - Holloman’s ORE produces record number of F-22 launches - DVIDS
How to control the F Stop on your iPhone and take perfect photos every time - Android Authority
TTArtisan 32mm f/2.8 Autofocus Fujifilm X Mount Coming Tomorrow - Fuji Rumors
Patent: EF-S 30mm f/1.8 & EF 50mm f/1.8 - Canon Rumors
This $270 lens has an f/1.4 aperture, AF, and comes with a remote control! - Digital Camera World
Leica launches new 'Pro workhorse' 70–200mm f/2.8 zoom & 2x teleconverter - Digital Camera World
One-of-a-Kind Nikon 14.3mm f/4 Fisheye Can Be Yours for $250,000 - PetaPixel
Why aperture matters on your smartphone camera - New Atlas
This is why your iris and waveform display don't work together in the way you might think - Red Shark News
First Impressions: Sony 85mm f/1.8 and 100mm f/2.8 G Master Lenses - Popular Photography
Could a monster Nikon Z 200-700mm supertelephoto zoom lens be on the way? - Digital Camera World
Examining the Myths and Confusion Around Crop Factor Equivilancy - Fstoppers
Nikon Nikkor Z 70-200mm f/2.8 S-Line lens review - Space
Viltrox's trio of fast f/1.4 primes finally arrive for Canon EF-M and Sony E - Digital Camera World
f/1.0 lens among 4 new optics coming to Nikon Z and Leica M mount - Digital Camera World
800mm monster would be Sony's longest ever lens for pro photographers - Digital Camera World
Sony launches new 50mm f/1.4 G Master lens - Digital Camera World
Fujifilm patents f/1.1 equivalent GF lens – fastest medium format lens ever! - Digital Camera World
Canon is working on an f/0.7 lens that would break the speed limit - Digital Camera World
Nikon Nikkor Z 24-70mm f/2.8 S lens review - Space
The Laowa 9mm f/5.6 will be the widest full frame non-fisheye lens ever! - Digital Camera World
Samyang adds 85mm f/1.4 and 14mm f/2.8 lenses for Canon EOS R and EOS RP - Digital Camera World
Tamron designs 18-500mm megazoom – all the lenses you need, in one! - Digital Camera World
Patent: Canon EF 2.8x Teleconverter - Canon Rumors
What the f-stop! Test your photographic knowledge in our weekly quiz #3 - Digital Camera World
Nikon Z-mount capable of f/0.65 lenses – but Sony says no demand - Digital Camera World
Laowa 105mm f/2 T3.2 Smooth Trans Focus Lens Review - ePHOTOzine
Samyang's new Nikon lenses: 14mm f/2.8 for Z mount, 85mm f/1.4 for Z & F mounts - Digital Camera World
Nikon AF-S DX 35mm f/1.8G review - Digital Camera World
In PAF lies & subterfuge, an F-16 tail number & a PAF pilot  —  both hidden to serve a myth - ThePrint
Less-than-full-time medical trainees guidance - NHS Employers
Foreign Language Equivalents
Foreign Language Equivalents of 'f number'
Language Equivalent   Language Equivalent
French    Spanish
Misspellings - Typos
f numberr,   f nubmer,   f nuumber,   ff number,   f mumber,   f numebr,   f nummber,   f nmber,   f nunber,   f numbor,   f numbber,   f number,   f numver,   f nuber,   f unmber,   f nu,ber,   f numer,   g number,   f numner,   f nimber,   f numbet,   fn umber,   f numbe,   f nymber,   f nnumber,   f numbeer,   f numbwr,    number,   f bumber,   f numbre,   fnumber,   f numbrr,   f umber,   f numbr,    fnumber,   f nmuber,   d number,   f numbee
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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