This document provides information about Canon's line of binoculars, including their key features and technologies. It explains that Canon draws on its expertise in optics to incorporate advanced camera technologies into their binoculars, such as sophisticated engineering, superior lenses, and image stabilizer technology. The document also summarizes the features of several Canon binocular models, including their magnification power, objective lens size, exit pupil size, water resistance, image stabilization capabilities, and power sources. It emphasizes technologies like Canon's L-series lenses, super spectra coating, and aspherical elements that enable the binoculars to perform at a high standard.
Spend Long Hours in Front of Computer? Protect Your Eyes with GUNNARS.Gunnar Optiks
How many hours do you spend in front of PC/Laptop/gaming console?
Staring at a digital screen for long hours can take a toll on your eyes. Take care of your eyes before it gets too late. Protect Your Vision with GUNNARS.
Here is a Fujinon Binocular training presentation I created a few years back to explain some of the major differences and features of Fujinon Binoculars.
The Nikon Coolpix B700 is an advanced camera that includes a proper long-range focal point with the greatest optical zoom of 60x. It is extraordinary for landscape and natural life photography, yet can likewise be utilized to record 4K recordings with sound system mic zoom highlight. This is one of the most amazing easy to use cameras under 500.
Cam.ON is a versatile smartphone camera system that enhances your smartphone camera featuring like professional cameras, it features excellent optical performance with 5 premium interchangeable lenses, portability with Podgrip and wirless App controlled LED flash strobe that is demanded on your night photography. for the further product information please visit, www.camonlens.com and be a follower at www.facebook.com/camonlens.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
As AI technology is pushing into IT I was wondering myself, as an “infrastructure container kubernetes guy”, how get this fancy AI technology get managed from an infrastructure operational view? Is it possible to apply our lovely cloud native principals as well? What benefit’s both technologies could bring to each other?
Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
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In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
2. No one knows more about optics than Canon. So in creating the binocular line, Canon drew on its
vast optical expertise to incorporate the advanced technologies found in their cameras and lenses,
maximizing clarity and enhancing performance. That’s why Canon offers you features like highly
sophisticated engineering, superior lenses and Image Stabilizer technology.
Each model has been meticulously engineered for comfort and convenience in real world conditions.
Since they are designed to be easy to hold and operate, the lineup features unsurpassed ergonomics,
and many models are equipped with special slip-free grips. Available in a full range of sizes and
magnifications, there’s a Canon binocular for every need, so whether you are whale watching or
following a horse race, Canon binoculars let you view your subject with unrivalled precision and comfort.
Built to the world’s most
exacting standards.
3. Focus and follow.
It isn’t always convenient to use a tripod —
especially if you or your subject is moving.
With Canon’s IS binocular models there’s no need for additional equipment. For
binoculars with magnification powers of 10x, 12x, 15x and 18x, Canon offers an Image
Stabilizer system utilizing a Vari-Angle Prism (VAP). This system has two sensors —
one vertical and another horizontal — that detect motion as well as a microprocessor
that adjusts the Vari-Angle Prism on
each side, in a bellows-type fashion,
according to the amount of
binocular shake detected. This
provides instant adjustment of the
refraction angle to compensate for
motion. So what you see through
the lenses is absolutely steady —
even when you’re not.
The legendary L Lens.
The bright red line engraved on the lens
barrel is the signature of the Canon L Lens.
L-series Lenses are on a level above the
rest, possessing groundbreaking image
performance, outstanding operability and
resistance to weather and aging. Canon’s
L Lenses are well known by professional
photographers around the world for their
innovative optical design, exceptional
quality and brilliant clarity. Canon has equipped its new top-of-the-line model, the
10x42L IS WP, with extraordinary L-series technology. Manufactured to provide
superior image quality throughout the entire viewing area, two Ultra-low Dispersion
(UD) elements on each side give you a bolder, brighter view than can be achieved
with conventional optics found in ordinary binoculars. With them, you’ll see more of
your subject, more clearly.
The genius is in the details.
Each Canon binocular has been engineered to deliver performance that
will impress. The state-of-the-art optical technology from Canon’s
world-renowned EF Lens series has been carefully adapted
especially for use in several Canon binocular models,
offering unparalleled resolution. Also Super Spectra
Coating increases image contrast and reduces
lens flare and ghosting in many Canon
binoculars. In addition, Canon uses
Aspherical elements in several of its
designs to assure sharper focus while
dramatically cutting distortion.
Technologies like these enable
Canon binoculars to perform
at an extraordinarily high
standard.
Canon’s remarkable Image Stabilizer Technology.
Canon. A passion for perfection.
Image Stabilizer ON
Image Stabilizer OFF
Minimize shaking, maximize viewing.
Shaking occurs naturally when you hold binoculars for an
extended period of time. Wind, muscle fatigue and
even excitement can contribute to “binocular
shake.” The more powerful the binoculars, the
more pronounced the shake appears. It’s tiring
on your eyes, it’s distracting, and it makes
getting a good, sharp focus simply impossible.
To solve this common problem, many Canon
binoculars are equipped with Image
Stabilizer (IS) technologies. Originally
developed for Canon’s high
performance video camcorder family,
these IS technologies have been
brilliantly adapted specifically for
Canon’s binocular line.
Optical Image Stabilization System
Perfectly Horizontal Tipped Upward Tipped Downward
4 5
4. A breakthrough in binocular design,
Canon’s new model is the world’s brightest
binocular with image stabilization (as of
January 1, 2005) and is the first completely
waterproof model in the Canon IS binocular
line-up. The 10x42L IS WP is equipped with
Canon’s high-performance L-series optics
that feature two Ultra-low Dispersion (UD)
lens elements on each side. The 4.2mm
exit pupil diameter delivers the brightest
optics in the Canon IS series. With an extra
wide 65˚ apparent angle-of-view, these
binoculars qualify as wide angle
instruments, allowing you to see more of
your subject. Doublet Field Flattener Lenses
offer superb edge-to-edge sharpness. A
metal coating prevents fogging, and the
ribbed surface ensures a secure grip.
These all weather models set a new
performance standard. With one-touch
Image Stabilizer technology, they instantly
compensate for “binocular shake.” Large-
diameter 50mm front objective lenses
accommodate a wide range of activities —
from sports to astronomical observation.
A multi-coated Ultra-low Dispersion (UD)
lens element in each objective section
delivers outstanding image contrast,
sharpness and color clarity. To
accommodate eyeglass wearers, 15mm
Long-Eye Relief provides greater viewing
comfort, and the ergonomic design makes
them very easy to hold. An optional anti-fog
eyepiece prevents condensation and
fogging in foul weather.
IMAGE
STABILIZER
BINOCULARS
WATERPROOF
IMAGE
STABILIZER
BINOCULARS
ALL
WEATHER
6 7
F F
F
15x50 IS All Weather
18x50 IS All Weather
5. Light, sleek and powerful, these advanced
binoculars feature Canon’s celebrated
Image Stabilizer technology to keep the
image steady even when you’re not.
High magnification multi-coated lenses
deliver a wide, extra-bright field-of-view.
The Doublet Field Flattener keeps images
sharp from edge-to-edge. The enhanced
power-saving technology coupled with
optional lithium AA batteries provide up
to 12 hours of continuous use. All Canon
binoculars feature a center focus for easy
one-handed operation, and the 12x36 IS
II has a water-resistant non-slip rubber
coating that assures secure handling in
a wide range of environments.
Light in weight but powerful in
performance, these well-designed
binoculars offer Canon’s superb Image
Stabilizer technology to instantly
counteract “binocular shake.”
The Doublet Field Flattener provides
sharp, distortion-free images from edge-
to-edge. Canon’s Super Spectra Multi
Coating assures superior contrast so you
see everything in the best possible light.
A non-slip rubber coating makes the
10X30 IS easy to hold even when you’re
wearing gloves or in a damp environment.
There’s also Long-Eye Relief to provide
greater comfort for those who wear
eyeglasses.
IMAGE
STABILIZER
BINOCULARS
IMAGE
STABILIZER
BINOCULARS
8 9
F F
6. IMAGE
STABILIZER
BINOCULARS
With its 42mm objective lens and 6mm
exit pupil diameter—the largest among
Canon binoculars—the 7x42 A WP
provides an exceptionally bright image.
Plus, you get powerful Aspherical optics
and an easy-to-hold, waterproof design.
The 8x32 WP offers a compact roof-prism
design with a 60˚ apparent angle-of-view.
Other features include its nitrogen-filled
waterproof construction and a Field
Flattener lens in each eyepiece.
Ultra compact and lightweight, this
model features Canon’s high-efficiency
Tilt-System Image Stabilization that
combines stability with sleek styling.
They’re the world’s smallest, lightest
and most affordable image stabilized
binoculars (as of January 1, 2005).
An extremely compact ergonomic design
makes the 8x25 IS comfortable to carry
and even easier to use. Canon’s all-glass
optics with Super Spectra Multi Coating
assure outstanding sharpness, clarity
and contrast. And these binoculars are
not only user-friendly, they’re also
environmentally friendly — only lead-free
glass is used in the optical system.
7x42 AWP
8x32 WP
7x17 FC
WATERPROOF
BINOCULARS
COMPACT
BINOCULARS
10 11
The smallest Canon binocular, the
7x17 FC features retracting lens barrels,
a sliding eye-adjustment mechanism
and lenses with Canon’s Super Spectra
Multi Coating. It also provides close
focusing at distances down to five feet.
F F
F
F
7. a 6.5˚ field-of-view appears to have a
65˚ range; qualifying it as a wide angle
instrument. The greater the apparent
angle-of-view, the easier it is for you to
pinpoint and track your subject. The
Canon binocular line offers models with
apparent angles-of-view that range from
45˚ to 67˚.
Differences in brightness
The brightness of an image is associated
with the amount of incidental light that
is reflected by the lens. Uncoated lenses
can reflect away as much as 8% of
incoming light per lens element —
resulting in a dim image. For this reason
Canon employs Super Spectra Multi
Coating to enhance brightness.
Since many things contribute to the
brightness of an image, be sure to
consider the following factors as you
compare binoculars:
Exit pupil diameter
The size of the image that emerges at
the binocular’s eyepiece impacts image
brightness. In dimly lit settings, a large
exit pupil, for example 4.2mm found on
the 10x42L IS WP, delivers brighter
results. For daytime viewing, binoculars
with exit pupil sizes between 2.5 and
3mm are often sufficient.
Objective element diameter
This refers to the front lens element
measured in mm. All things being equal,
the larger the lens in front of the
binocular, the more light it can take in
and the brighter the viewing image will
be. The 18x50 IS AW and 15x50 IS AW
have the largest objective lenses in
Canon’s binocular lineup.
Twilight coefficient
One difficulty with using traditional
numerical ratings to determine a
binocular’s suitability for low-light
viewing is that higher magnification
binoculars, even those with smaller exit
pupil size or “relative brightness” ratings,
can often reveal better detail in low light
because of their higher magnification.
Twilight Coefficient or Twilight Factor
accounts for the magnifying power of a
pair of binoculars, and can be a useful
rating—especially if viewing at dawn or
dusk, or deep shade viewing conditions.
Judging quality
When evaluating binoculars brands and
models, here are few things to look for:
Alignment
If the parallel tubes of the binocular are
out of alignment due to a manufacturing
defect or accident, you’ll see two similar
but separate images. There is no way to
repair this problem and it renders the
binocular virtually useless.
Color
Focus the binocular on a white object.
Check two things: first, that the white
object appears a faithful white tone
Canon’s Super Spectra Multi Coating
Narrow field- of-view
a. Real field-of-view: 6.5˚
b. Apparent
angle-of-view: 65˚
c. Field-of-view at
1,000 yards: 340.6 feet
Looking through a 10x42L IS WP binoculars
at a subject 1,000 yards away
Wide field- of-view
13
Find the binoculars that fit your needs.
Waterproof and all weather
Several models in the Canon binocular
line are waterproof or water-resistant.
Designed to be used outdoors and on the
water, these models are built to withstand
a broad range of conditions including
rain, humidity and more. The new Canon
10x42L IS WP offers Canon’s highest
standard of waterproof performance—it
can be completely submerged.
Lead-free optics
Canon uses environmentally friendly
lead-free glass in its optical systems.
This creates the high-quality
performance you demand from your
binocular while protecting the
environment from unnecessary harm.
The importance of objective
lens diameter
Binoculars are described by the power
of their magnification (18x, 15x, 12x,
etc.) combined with the diameter of their
objective lenses (50mm, 42mm, 36mm,
etc.) The greater the magnification power,
the larger your viewing subject will appear
in the objective lens as you look through
the binoculars.
For instance, if you use the 10x42L IS WP
to track a subject 100 yards away, it
appears to be the same size as a subject
located just 10 yards away seen without
binoculars. All things being equal, the
larger the diameter of the objective lens,
the more light it can admit for brighter,
more detailed images. So binoculars like
the 10x42L IS WP, 18x50 IS AW and
15x50 IS AW produce particularly bright,
clear images.
The key to Field-of-View
The field-of-view is the area you see when
you look through the binocular. The higher
the magnification power, the narrower the
field-of-view. The apparent angle-of-view
is the product of the magnification times
the real field-of-view. So in the case of the
10x42L IS WP, the 10x magnification with
100 yards away
with the naked
eye.
10 yards away with
the naked eye.
With a 10x magnification binocular,
the hot air balloon 100 yards away
will seem as if it were 10 yards away.
When bright....
When dark....
Viewer’s pupil
diameter is 3.0mm.
Pupil dilates
as wide as 7.0mm.
8. *Without batteries. **Waterproof to 3.3 ft. underwater. ***Battery life figures are approximate and based on continuous viewing at 77°F/25°C.
Obj. Lens
Diameter
(mm)
Focus
Range
(feet)
Exit
Pupil
(mm)
Relative
Bright-
ness
Eye-
Relief
(mm)
Field-of-View
at 1,000 yds.
(ft.)
Weight*
(oz.)
Water
Resistant
Exterior
Finish
Power
Source
18x50 IS AW Porro II
Prism
42
8.2 ~
Infinity
4.2 16 (Long-
Eye Relief)
6.5 65.0
(Wide) 340.6 36.8 Waterproof
for 30 min.**
Rubber
Coat
Two
AA Alkaline Batteries
10x
15x50 IS AW Porro II
Prism 50
19.7 ~
Infinity 2.8 7.8 15 (Long-
Eye Relief)
3.7 66.6
(Wide)
194 41.7 Water Resistant
(Usable in heavy rain)
Rubber
Coat
18x
12x36 IS II Porro II
Prism Center-Focusing 36 19.7 ~
Infinity 3.0 9.0 14.5 5 60.0
(Wide)
262 23.3 –
Rubber Coat
(Soft Plastic)
Two
AA Alkaline Batteries
12x
10x30 IS Porro II
Prism Center-Focusing 30 13.8 ~
Infinity 3.0 9.0 14.5 6 60.0
(Wide)
22.2 – Rubber Coat
(Soft Plastic)
Two
AA Alkaline Batteries
10x 5 x 5-15/16 x 2-13/16
8x32 WP 32 16.4 ~
Infinity 4.0 18 (Long-
Eye Relief)
7.5 60.0
(Wide)
393 21.2
Waterproof
for 5 min.**
Rubber
Coat
–
8x
Center-Focusing
42 13.1 ~
Infinity 36.0 17 (Long-
Eye Relief)
7 49.0 367 26.5
Waterproof
for 5 min.**
–
7x
7x17 FC Center-Focusing 17 4.6 ~
Infinity 2.42 16 (Long-
Eye Relief)
6.5 45.5 340.6
7x 5.9 6.3 – Aluminum
Alloy –
3-5/8 x 2-3/8 x 1
Apparent
Angle-of-
View(°)
Magni-
fication
6.0
16.0
Size (Encased)
[W x D x H] (in.)
Two
AA Alkaline Batteries
Center-Focusing
Center-Focusing
Rubber Coat
(Soft Plastic)
Roof-
prism
Roof-
prism
8x25 IS
Roof-
prism
Porro II
Prism
Center-Focusing
Center-Focusing 8x 25 11.5 ~
Infinity 3.1 9.6 13.5 6.6 52.8 346 4-11/16 x 5-3/8 x 2-3/8 16.9 – Matte
One
CR123 Lithium Battery
Real
Field-of-
View(°)
Battery
Life***
–
–
–
6 x 7-9/16 x 3-3/16
5.4 x 6.9 x 3.4
5 x 6-15/16 x 2-13/16
314
5 x 6 x 2
5-3/8 x 5-11/16 x 2-1/8
Focusing
Systems
Prism
4 hrs.
2.5 hrs.
4 hrs.
Porro II
Prism Center-Focusing
50
19.7 ~
Infinity 3.3 10.9 15 (Long-
Eye Relief)
4.5 67.5
(Wide) 236 41.7 Water Resistant
(Usable in heavy rain)
Rubber
Coat
Two
AA Alkaline Batteries
15x 6 x 7-9/16 x 3-3/16 2.5 hrs.
4 hrs.
6 hrs.
HOW TO USE BINOCULARS
This is the proper way to adjust a
binocular for outdoor use.
1. Look through the binocular, and adjust
the spread of the eyepieces
until you see one circular image.
2. Close your right eye and look through
the left eyepiece. Use the focusing ring
to focus sharply on the subject.
3. Close your left eye and look through the
right eyepiece. Do not turn the center
Designed specifically for the 18x50 IS AW and
the 15x50 IS AW binocular, these eyepieces
prevent condensation and fogging. Useful in
warm, humid and cold weather. With Anti-Fog Piece
Without
Anti-Fog Piece
Anti-Fog Eyepiece AE-B1 Nomenclature
Image Stabilizer button
Objective lens
Eyepiece barrel
Diopter adjustment rings
Focusing ring
Eye cup
Strap eyelets
focus ring any further. Turn only the
right-side eyepiece diopter ring as
necessary.
4. The binocular should now be adjusted
for your eyesight. When you move the
focusing ring for different distances,
the image will remain sharply focused.
Please note that eye spacing and diopter
adjustment is different for each person.
Another person would have to adjust the eye
spacing and diopter again.
For eyeglass wearers
If you look through the binocular while
wearing eyeglasses, your eyes will be further
away from the eyepieces, causing the image
to gradually shade off at the edges. To
prevent this, use the foldaway rubber
eyepiece rings if available.
For added comfort, eyeglass wearers can adjust the
eyecups on IS series binoculars by folding back the
rubber eyepiece rings or by twisting the eyepiece up or
down in the case of the 10x42L IS WP.
On/Off Lamp
The tower is slanted and
has a spool-shaped effect.
through the binocular and second, that
there’s no secondary “band” of color(s)
at the edges of the object. This is
important because at higher
magnifications, chromatic aberrations
tend to occur more frequently. Canon
binoculars correct for this problem by
using UD lenses from Canon’s EF Lens
series (highest magnification models)
or Super Spectra Multi Coating.
they appear to the naked eye. It’s easy to
test with a building or other flat subject
with pronounced horizontal or vertical
lines by observing whether lines near the
periphery remain sharp or tend to curve.
Canon’s outstanding optics, including
Aspherical lens elements, correct for
linear distortion.
Remembering the readings of the diopters will make it
easier to readjust the binoculars after someone else
has used them.
General Use Bird Watcing Spectator Sports Astromy travel Theater Hunting Camping/Hiking Marine Activity Suveillance
14 15
Chromatic aberration
cancelled out.
10x42L IS WP
Perfect parallel image.
17.64
7x42 A WP
The image near the
edge of the circle is blurred.
Clear image all
the way to the edge.
Chromatic aberration
causes the highlighted
part to look pink.
Curvature of the field
High quality binoculars show excellent
sharpness not only at the center of
images, but at the edges as well. This is
easy to check: stand at a 90˚ angle to a
wall with detail and focus. Then check
the sharpness from center to edge. For
the best possible flat-field performance,
most Canon binoculars use Field
Flattener and Aspherical lenses.
Clarity
To check for clarity, point the binocular at
a clearly defined edge, like the lettering
on a sign or a constellation in the night
sky. Images should appear crisp and
razor-sharp.
Parallel Lines
Excellent binoculars will render parallel
lines in a subject as perfectly straight as
Because of lens
aberration, the entire
image appears blurry.
Clear image.