Canon EF 70-200 mm F4L IS USM lens
Pre-Photokina 2006: The first of two new lenses from Canon is a image stabilized 'version' of the current EF 70-200 mm F4L. With this new stabilized lens Canon are boasting no less than 4 stops of stabilization (meaning you could use a shutter speed 4 stops/EVs slower than without it). Despite the addition of image stabilization the lens remains the same size as its non-stabilized sibling and is only slightly heavier. This lens should be available in November for $1250 (US).
Canon achieves 4 stop Image Stabilizer
Amstelveen, The Netherlands, 24 August, 2006: Canon today announces the EF 70-200mm f/4L IS USM, Canon’s first interchangeable lens with 4 stop Image Stabilizer. This allows hand held photography with no perceptible image blur at shutter speeds up to 4 steps slower than otherwise possible – ideal for low light shooting without tripod or flash.
Dust and moisture resistant, compact, manoeuvrable, and incorporating Canon’s finest standards of precision optics, Canon’s latest professional L-series lens is expected to be popular for travel, expedition and wildlife assignments where there is a requirement to travel light without compromising image quality.
The EF 70-200mm f/4L IS USM features
- Compact lightweight body - 760g, 172mm length
- 4 stop Image Stabilizer with 2 modes
- 1 x Fluorite and 2 x UD lens elements for superior optical performance
- Ring type USM auto focus with full time manual override
- Circular aperture diaphragm for even background blur
- Environmental seals for dust and moisture resistance
- Super Spectra coatings to suppress ghosting and flare
- 1.2m minimum focus distance
- Lens hood and soft pouch
The EF 70-200mm f/4L IS USM offers a lightweight alternative to the renowned
EF 70-200mm f/2.8L IS USM, complementing Canon’s other professional L-series lightweight zooms such as the EF 17-40 f/4L USM and EF 24-105L IS USM. f/4L lenses are designed for professional photographers requiring a light zoom lens with a fixed aperture throughout the zoom range. The lens adds Canon’s proven Image Stabilizer technology to the popular EF 70-200mm f/4L USM while maintaining that lens’ compact size.
4 step Image Stabilizer (IS) extends low light options to previously unimaginable levels. Photographers normally shooting handheld at 1/250 sec can switch on IS to obtain a similarly steady and blur-free result with a shutter speed of just 1/15 second.
IS reduces dramatically the image blur caused by camera shake. Gyro sensors detect unwanted vibrations, triggering the corresponding movement of a correcting lens group perpendicular to the optical axis. This alters the light path, returning the image to its correct position on the sensor or film plane.
For shooting immobile subjects, Mode 1 corrects for movement in the image along both the horizontal and vertical axes. For shooting while panning horizontally to follow a moving subject, Mode 2 turns off vertical correction and prevents the effect of dragging the subject back through the frame.
IS switches off automatically when the camera is mounted on a tripod, thus preventing feedback loops between the IS sensor and internal motor vibrations.
The lens’ Ring-type USM employs ultra-sonic frequency vibrations to drive auto focus with unrivalled speed and near-silent operation. A powerful CPU and improved AF algorithm contribute to speed performance. Good holding torque stops the lens with precision and accuracy, the instant it arrives at the correct focus point and without overshoot. Photographers can switch to manual focus instantly and at any time simply by moving the manual focus ring without first having to switch out of auto focus mode.
f/4 from 70 to 200mm
The EF 70-200mm f/4L IS USM offers the highest possible optical quality with no change in aperture over the full focal range of the lens. This allows photographers to set exposure at the widest aperture and zoom all the way through to 200mm without having to decrease shutter speed. Lens length does not alter during zooming and the front lens element does not rotate during zooming or focusing. The lens employs an almost perfectly circular barrel aperture, helping create attractive, even background blur.
A newly designed optical system limits lens size and improves image clarity over the total image area. 1 x Fluorite element and 2 x Ultra-Low Dispersion glass elements are used to eliminate the secondary chromatic aberrations that otherwise reduce sharpness and introduce colour fringing. By optimising Super Spectra lens coatings and lens element shaping, Canon’s engineers have been effective in suppressing flare and ghosting – more prone to occur with digital cameras due to reflection off the image sensor. By increasing light absorption, coatings reduce reflections off lens element surfaces to deliver crisp, undistorted images with natural colour balance.
EOS system integration
The EF 70-200mm f/4L IS USM includes distance metering information, providing compatibility with the E-TTL II flash system of late model cameras such as the EOS-1D Mark II, EOS-1Ds Mark II, EOS 5D and EOS 400D. When used in conjunction with Canon’s range of EX Speedlite flash units, the lens passes distance information to the flash algorithm for markedly improved flash exposure metering. To match the weather resistance afforded by EOS-1 pro camera bodies, an O-ring seals the lens against the lens mount to prevent the ingress of dust and moisture.
AF Mode and IS switches have been reshaped, making them less susceptible to being engaged or disengaged accidentally.
The EF 70-200mm f/4L IS USM comes with a lens hood and lens pouch.
In keeping with Canon’s Kyosei philosophy of living in harmony with the environment, the lens features only lead-free glass.
|.....the ROYAL LOTUS 2017/08/25-NEW YORK..... by Chiwat|
from Wild flowers
|Coffee and Mango cake by clicker88|
from Another cup of coffee
The new iZugar 3.25mm F2.5 super fisheye lens offers an insane 220-degree angle of view. That means it can basically see behind itself... good luck keeping your feet out of the shot.
You'll laugh, you'll cry, you'll remember that time you took a picture of the frozen pizza baking directions.
A Craigslist poster has discovered the worst possible way to photograph a car: taking pictures of pictures displayed on a cracked and scratched up smartphone screen.
With the iPhone X coming out soon, the title probably won't last, but the iPhone 8 Plus is officially the best smartphone camera DxOMark has ever tested, and the iPhone 8 is second.
Kodak's new Facebook Messenger chatbot is trying to bring back the 'Kodak Moment' by digging up your old social media photos and trying to sell you prints and custom coffee mugs.
Affinity Photo for iPad was touted as "the first full blown, truly professional photo editing tool to make its way onto the Apple tablet." This update makes it that much more convenient.
Yashica has released a new teaser video, and this one claims they'll be releasing an "unprecedented camera" in October on Kickstarter. Ready... set... speculate!
Storage solutions company Synology has just released its very first 6-bay NAS tower. Combined with the DX1215 expansion units, it can hold and control up to thirty drives.
We're always expanding our collection of product overview content, and we've just added videos for the Canon EOS 6D Mark II, the EOS Rebel SL2 and EOS M6.
The venerable Canon PowerShot G1 was announced seventeen years ago this week, marking the start of a line of enthusiast-focused compacts that's still alive and kicking.
Super macro photographer Can Tuncer captured these incredible close-ups of a single peacock feather using a special setup and three different microscope lenses.
After successfully crowdfunding the Biotar 75mm F1.5, Oprema Jena is at it again. This time they're bringing back the Biotar 58mm F2: the world's only lens with a 17-blade aperture.
Adobe's move to a subscription model is treating it very well indeed. The company has posted record revenue for the second quarter in a row, hauling in a mind-boggling $1.84 billion.
More details have emerged about the potential sale of Blackstone's 45% stake in iconic camera brand Leica.
Popular mobile editing app Snapseed just got a major update that includes a new interface and 11 new presets for both Android and iOS, as well as adding the Perspective tool to the iOS version.
It might sound like a strange idea, but taking macro photos of boiling water can actually result in some really cool photographs. A good photo experiment for a rainy day.
The database was created to "break with the narrow lens through which history… has been recorded" by equipping those who commission photography with "the resources to discover photographers of color available for assignments.
Lensbaby has released two new optics for their special "optic swap system." The Lensbaby Sweet 80 Optic gives you that trademark sweet spot of focus, while the Creative Bokeh optic gives you 9 different drop in aperture plate options to play with.
TechCrunch has already posted their review of the upcoming iPhone 8 (not yet the iPhone X), and they're calling it "a look into the augmented future of photography."
Affinity Photo is a $50 photo editing software with no subscriptions. That's it – pay for it once and you're done. And we think it's actually pretty darn good.
Instagram is currently testing a major change to the app's profile layout: replacing the 3-photo across grid with a 4-photo grid... and some users are NOT taking the news well.
A report by USSRPhoto is shedding some light on the return of the famed Zenit camera brand. It seems the full-frame mirrorless camera they're working on will be made in part by Leica using components from the Leica SL.
According to a reliable Korean report, Samsung is developing a smartphone sensor that's capable of super slow motion. Translation: Samsung's next batch of Galaxy smartphones may be able to shoot 1,000fps.
This simple photograph of a seahorse and Q-tip has taken the internet by storm. We spoke to photographer Justin Hofman about how it was captured, and what it means to him.
After a massive leak last week, Profoto has officially debuted the Profoto A1: the company's first on-camera flash system that they're calling "the world's smallest studio flash."
"When the first hyperfocal distance charts were designed, someone decided that an acceptably sharp background contained some blur — enough to notice in a medium-sized print [...] After that point, nearly every other hyperfocal chart followed suit."
The Canon EOS Rebel SL2 (also known as the EOS 200D) is the company's impressively compact entry-level DSLR. Packing a 24MP APS-C sensor, DIGIC 7 processor and Dual Pixel AF, it promises a lot of bang for the buck. And while not mind-blowing, it handles most tasks very well.
Correct these four common composition mistakes and your photos will be more balanced, tell a better story, and lead your viewer's eye where you want it to go.
The rugged, compact 360° action camera Kodak unveiled at Photokina in 2016, the Kodak PixPro Orbit 360, is finally available in the United States.
iOS 11 launches tomorrow, and it'll save all of your pictures in a new high efficiency image format called HEIC. Fortunately, there's now a converter that will let you turn those photos back into JPEGs.