NEW

The COSI mission will study the recent history of star birth, star death, and the formation of chemical elements in the Milky Way.

The post NASA Selects Gamma-Ray Mission to Explore Positron Sources, Supernovae appeared first on Sky & Telescope.



source https://skyandtelescope.org/astronomy-news/nasa-selects-gamma-ray-mission-to-explore-positron-sources-supernovae/

NASA Selects Gamma-Ray Mission to Explore Positron Sources, Supernovae

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How to Photograph the Northern Lights

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A group of Japanese astronomers just discovered a potential new impact at the planet Jupiter.

The post Jupiter Whacked Again? Japanese Astronomers Record Possible Impact appeared first on Sky & Telescope.



source https://skyandtelescope.org/astronomy-news/jupiter-whacked-again-japanese-astronomers-record-possible-impact/

Jupiter Whacked Again? Japanese Astronomers Record Possible Impact

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The post The Taliban, A Pair of Skis, and Seeing What We Think We Know appeared first on Reading The Pictures.



from Reading The Pictures https://ift.tt/3aLsGHP
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The Taliban, A Pair of Skis, and Seeing What We Think We Know

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Camera Care Tips


Camera Care Tips for New Photographers

Photography is one of the most popular professions and hobbies in our country nowadays. The camera has come up in the hands of almost all the youth. Whether it is digital or DSLR. Beautiful pictures are taken with great care, but is the device that is at the core of the hobby or profession of photography being taken care of properly? No matter which camera you use, be it film, digital or DSLR, if you don't take proper care of the camera, like all other devices, it is likely to break down. So today's event is about the very basic aspect of taking proper care of the camera.

Some things are usually used to keep the camera safe. The camera bag is one of them. It provides external security to the camera. The camera bag protects the camera from dust, sand, water and dirt. It also protects against sudden breakage or damage.

If you bought a DSLR, you can get a lens cap camera with it. It can be used anytime and anywhere. You must use a lens cap when the camera is not taking pictures. Dust, dirt can easily sit on the camera lens so use a lens cap. You can use the lens hood if you want. However, it is usually used by professional photographers.

Use a clean, dry lens cleaning cloth to remove dust and dirt from your camera lens. Sophisticated microfiber cloth is best for cleaning lenses. This cloth can completely clean any kind of dirt, dust. Many times fingerprints, grease spots, etc. are imprinted on the lens. This cloth can clean these stains without any scratches.
So much for the external care of the camera when you use the camera regularly. But if the camera has not been used for a few days, keep the battery out of the camera. The battery will not be damaged quickly. Do not leave the camera in an unnecessarily bright light. Especially keep away from sunlight because the sun's temperature can melt the lubricating grease of the camera which can penetrate inside the camera and damage the hardware. Some parts of the camera may also be exposed to the heat of the sun. However, this does not mean that the camera needs to be stored in extra cold. Both conditions are detrimental to the camera. So store the camera in a relatively cold environment during hot weather and in a slightly warmer environment during cold weather.

If you are using a DSLR camera, you must use a strap with the camera. Many times the camera can be accidentally dropped from the hand while using. So it is important to use this strap. However, it is not necessary to use a strap if you use small, point and shot cameras.

When you use the camera, make sure that it does not come in contact with water or dust. However, if you come in contact with water or sand in any way, clean it immediately. Most cameras are not made with waterproofing. In that case, your camera may be temporarily or completely damaged by water. So keep a clean cloth with this in mind when taking pictures around water or in an environment where the camera may come in contact with water.

If you need to take pictures in the rain or around the water, you can wrap the camera in waterproof polythene. Then you can use the camera by cutting the polythene to the size of the lens and viewfinder or LCD monitor.

A lot of the time when you go to take pictures, dust can fall on the camera lens. You can use a cleaning cloth to clean the lens. However, a blower brush can be used if dirt accumulates on the inside of the lens or inside the cap of the lens where cleaning cannot be done with a cleaning cloth. The blower brush cleans areas where it is not possible to clean with a cloth. And if the camera is dirtier then it would be better to use lens cleaning liquid. You can clean the lens with a little liquid cloth to clean the lens.

These things are very important for storing any camera. But keep in mind that these are not just tips to take care of your camera. Properly covered, it will withstand plenty of adverse conditions.


How Take Care Your Lovely Camera?

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world turtle day

World Turtle Day is an occasion which is seen on May 23rd of every year. The motivation behind this occasion is to praise these striking reptiles and to bring issues to light about the American Tortoise Rescue – a non-benefit association whose mission is to ensure turtles and tortoises all around the globe. On this informal occasion, individuals can give cash to this association, volunteer for different associations that advance turtle preservation and insurance or essentially go through the day getting a charge out of charming turtle pictures on the Internet. All things considered, there's no set in a stone manner to praise this occasion insofar as turtles are the fundamental focal point of your endeavours.


World Turtle Day's History

World Turtle Day was founded in 1990.
American Tortoise Rescue is and a non-profit organization that works with Turtles. Tortoise Rescue sponsors annually holiday as Turtle Day. This day was offered so individuals couldn't just praise turtles yet in addition so they can participate in the push to ensure turtles and tortoises are everywhere throughout the world. Since the day it was established, the American Tortoise Rescue has set more than three thousand turtles and tortoises into minding homes.

Some Common Turtles that You want to know

The common types of Turtles include seven species of sea turtles (which include the Hawksbill, Loggerhead, Green and Leatherback Sea Turtles, Kemp’s Ridley Sea Turtles, among others). It also includes land turtles such as the Radiated Tortoise, the Saw-jawed Terrapin, the Ploughshare Tortoise, the Philippine Pond Turtle, the Flattened Musk Turtle, the Yellow-headed Box Turtle, McCord’s Box Turtle, Indochinese Box Turtle, Yellow Mud Turtle, Western Chicken Turtle and Blanding’s Turtle.

Feature about Turtles

Sizes: Kemp's Ridley is the smallest sea turtle at 30 inches long (.762m);

Weight: Kemp's Ridley weighs between 80-100lbs (36-45 kg). The leatherback can weigh over 2,000 pounds (over 907 kg);

Diet: jellyfish, seaweed, crabs, shrimp, sponges, snails, algae and molluscs;

Range: Most sea turtles undergo long migrations, some as far as 1400 miles;

Habits: Most sea turtles spend their lives alone until they mate.

Fun Facts about Turtles:

  • Turtles are reptiles.
  • Turtles have a hard shell that protects them like a shield, this upper shell is called a ‘carapace’.
  • Turtles also have a lower shell called a ‘plastron’.
  • Many turtle species (not all) can hide their heads inside their shells when attacked by predators.
  • Turtles have existed for around 215 million years.
  • Like other reptiles, turtles are cold-blooded.
  • The largest turtle is the leatherback sea turtle, it can weigh over 900 kg! (2000 lb)
  • Turtles lay eggs.
  • In some species of a turtle the temperature determines if the egg will develop into a male or female, lower temperatures lead to a male while higher temperatures lead to a female.
  • Some turtles lay eggs in the sand and leave them to hatch on their own. The young turtles make their way to the top of the sand and scramble to the water while trying to avoid predators.
  • Sea turtles have special glands which help remove salt from the water they drink.
  • Many turtle species are endangered.

How Came World Turtle Day?

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Camera added Smart toothbrush can be used in your dental care

The Profix toothbrush includes a small light and an HD camera.

Everything is getting smarter with the help of technology. As a result, the suffering of the users is decreasing. When everything from phones to TVs has changed with the touch of smart technology, why should the hand toothbrush be left behind?

Technology company Onvi has come up with the smart toothbrush from this idea. This toothbrush called 'Profix' has a camera. So while brushing your teeth, you can watch the video of the condition inside the mouth directly on your iPhone.

And if you want, you can also record a video or take a still image to show to the dentist. This was reported by the technology website Engadget.

The Profix toothbrush includes a small light and an HD camera. This camera can capture 1080 pixel video. As well as being able to take 10-megapixel stills.

As a result, this toothbrush can take a clear picture of the inside of the mouth and teeth. Users and dentists will be able to identify whether there is any dirt in the gaps of the teeth or if there is any dental problem in the gums.

This smart device comes with four interchangeable brushes. These brushes can be used instead of understanding the condition of the teeth as needed.

However, this smart toothbrush is quite expensive, 400 US dollars. Oral-B 6000 Smart Series toothbrushes are available at only half the price. The work is almost the same. However, Oral B toothbrushes cannot be changed.


Smart toothbrush in dental care

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Why Do You Choose Digital for Capturing Photo Frame?

Why Do Digital Photography?

Most of this book assumes you are already a digital photographer or have decided to become one. If you aren’t fully converted and are wondering why digital photography has almost entirely replaced film in less than a decade, here are some of the reasons. It would be reasonable to assume that it’s because of image quality since digital images are now equal to, and often better than film images. 

However, the real reason for the switch lies elsewhere, in the fact that once captured, digital photographs are already in a format that makes them incredibly easy to share and use. For example, you can insert digital photographs into documents, print them at a kiosk, send them by email to friends, or post them on a Web site where anyone in the world can see them. With most cameras, you can immediately see your images on a small LCD monitor on the back of the camera, or you can connect the camera to a TV and show them as a slide show. 

Some cameras can even be connected to a telescope or microscope to display dramatically enlarged images on a large-screen TV. It’s this ability to instantly share photos with anyone, anywhere that makes digital photography so attractive.




Here are a few more reasons why the change has been so dramatic:

Kiosks in many stores let you print photos on the spot.

• Going digital saves you money in the long run since you don’t have to buy rolls of film and pay for their development and printing.

• It saves you time because you don’t have to make two trips to the store to drop off and then pick up your pictures (although you can do this with a digital camera’s memory card).

Digital cameras instantly show you how your pictures look so you’ll no longer have those disappointments a day or two later when your film is developed.

• You can view images before they are printed and if you don’t like what you see, you can edit them to perfection or save money by not printing, or even deleting them.

Digital photography (at least your part in it) doesn’t use the toxic chemicals that often end up flowing down the drain and into our streams, rivers, and lakes.

• No more waiting to finish a roll of film before having it processed. (Or wasting unexposed film when you can’t wait.)

• Many digital cameras are able to capture not only still photographs, but also sound and even video—they are as much multimedia recorders as they are cameras.

• You can use a photo-editing program to improve or alter digital images, sometimes right in the camera. For example, you can crop them, remove red-eye, change colours or contrast, and even add and delete elements. It’s like having a dark room with the lights on and without the chemicals.

• You can post your images on a Web site so others can view and even print them.


• You can have your images printed on the pages of a bound book, like those you see in bookstores.

• You can create slide shows that can be burned to a DVD for playback on a TV complete with background music or narration.


Why Do You Choose Digital for Capturing Photo Frame?

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Canon EOS 5DsR

Detail Specification of Highest Performance DSLR Camera Canon EOS 5DsR 

The Canon EOS 5DS R includes an all-new 50.6 megapixel CMOS sensor, alongside double DIGIC 6 processors. The 'R' model counterbalances the counter associating channel for greatest goals (to the detriment of moiré). The self-adjust framework has an aggregate of 61 points (in a 'high thickness reticular cluster'), 41 of which are cross-type. It utilizes the equivalent 150,000-pixel RGB+IR metering framework as the EOS 7D II with a scene recognition framework. The metering framework likewise has an enemy of glint work for shooting under sodium vapour lights. The ISO extend on the camera is 100-6400, expandable to 12800. 

The 5DS R has a more unbending skeleton than the EOS 5D III so as to limit camera shake and improve flexibility. The shade is appraised to 150,000 cycles. The 5DS game is a 'Wise Viewfinder II' which has an installed straightforward LCD board that can show edited shooting outlines, synthesis networks, and an electronic dimension. It likewise sports a 3.2" LCD show with 1.04M spots and double memory card openings (CompactFlash and SD/SDHC/SDXC with UHS-I support). 

Picture takers have a decision of two harvest modes: 1.3x (30.5MP) and 1.6x (19.6MP) just as medium and little size Raws. The 5DS can shoot persistently at 5 fps. Video-wise, the 5DS backings 1080/30p account, however, needs clean HDMI yield and an earphone jack.

Short Description about Canon EOS 5DS R Digital SLR Camera w EF 24-70mm F2.8 Lens Bundle


Price
$5298.00as of May 14, 2019, 
Brand
Canon
Resolution
50.6 Megapixel
Sensor Size
Full Frame
Sensor Type
CMOS
ISO
100 - 6400
Viewfinder
Optical
Display Size
3.2 inches
Shooting Speed
4.8 fps
Video Resolution
1920 x 1080
Focal Length
24 - 70 mm
35mm Equivalent
24 - 70 mm
Max Aperture
F/2.8
Optical Zoom
2.9x
Release Date
June 2015
Body Weight
32.8 ounces
Lens Weight
28.4 ounces
Weight
61.2 ounces

Detail Specification of  DSLR Camera Canon EOS 5DsR 

SpecificationsCanon EOS 5Ds R


Year Introduced2015
Megapixels50.6
Total Pixels53.0
Sensor Size36.0 x 24.0mm
Pixel Dimensions8688 x 5792
Pixel Size4.14µm
Diffraction-Limited Aperturef/6.7
Aspect Ratio3:2
Sensor CleaningEOS Integrated Cleaning System with fluorine coated Low-Pass Filter
Lens MountEF (excludes EF-S lenses), TS-E, MP-E
FOVCF1.0x
Image ProcessorDual DIGIC 6
Autofocus
TypeTTL-CT-SIR with a dedicated CMOS sensor
Points61 Point / 41 f/4 cross-type AF points inc 5 dual cross-type at f/2.8
The number of cross-type AF points will differ depending on the lens.
Working RangeEV -2 - 18 (at 20°C & ISO100)
ModesOne-Shot
AI Focus
AI Servo
Point SelectionAutomatic selection: 61 points AF
Manual selection: Single-point AF (61, 41 cross-type only, 15 or 9 points selectable)
Manual selection: Spot AF
Manual selection: AF point Expansion 4 points (up, down, left, right)
Manual selection: AF point Expansion surrounding 8 points
Manual selection: Zone AF
AF points can be selected separately for vertical and horizontal shooting
Predictive
Assist BeamEmitted by optional dedicated Speedlite
MicroadjustmentAF Menu
+/- 20 steps ( wide and tele setting for Zooms)
Adjust all lenses by the same amount
Adjust up to 40 lenses individually
Adjustments remembered for lens by serial number
Exposure Control
Metering Modes150,000-pixel RGB+IR metering sensor
EOS iSA System with 252-zone metering:
(1) Evaluative metering (linked to All AF points)
(2) Partial metering (approx. 6.1% of viewfinder at centre)
(3) Spot metering (approx. 1.3% viewfinder at centre)
* AF point-linked spot metering not provided
(4) Centre-weighted average metering
Metering RangeEV 1 – 20 (at 23°C with 50mm f/1.4 lens ISO100)
Exposure Comp+/-5 EV in 1/3 or 1/2 stop increments (can be combined with AEB).
AEB2, 3, 5 or 7 Shots +/-3 EV 1/3 or 1/2 stop increments
ISO SensitivityAuto (100-6400), 100-6400 (in 1/3-stop or whole stop increments)
ISO can be expanded to L: 50, H1: 12800
Shutter Speed30 - 1/8000 sec (1/2 or 1/3 stop increments) + Bulb (Shutter speed range available varies according to shooting mode)
WB SettingsAWB (Ambience priority/White priority), Daylight, Shade, Cloudy, Tungsten, White
Fluorescent light, Flash, Custom, Color Temperature Setting.
White balance compensation:
1. Blue/Amber +/-9
2. Magenta/ Green +/-9.
Custom WBYes, 1 setting can be registered
WB Bracketing+/-3 levels in single-level increments
3 bracketed images per shutter release.
Selectable Blue/Amber bias or Magenta/ Green bias.
Viewfinder
TypePentaprism
CoverageApprox. 100%
MagnificationApprox. 0.71x
EyepointApprox. 21mm
Diopter Correction-3 to +1 m-1 (diopter)
Focusing ScreenFixed (Transmissive LCD screen)
MirrorMotor-Driven Quick-return half mirror (Transmission: reflection ratio of 40:60, no mirror cut-off with EF600mm f/4 or shorter)
InformationAF information: Single/Spot AF points, AF Frame, AF status, Focus indicator, AF mode, AF point selection, AF point registration
Exposure information: Shutter speed, aperture value, ISO speed (always displayed), AE lock, exposure level/compensation, flash metering, spot metering circle, exposure warning, AEB, metering mode, shooting mode
Flash information: Flash ready, high-speed sync, FE lock, flash exposure compensation, red-eye reduction light.
Image information: Card information, maximum burst (2 digit display), Highlight tone priority (D+).
Composition information: Grid, Electronic level
Other information: Battery check, Warning symbol, Flicker Detection, drive mode, white balance, JPEG/RAW indicator
DOF PreviewYes, with the Depth of Field preview button.
Eyepiece ShutterOn strap
LCD
Type3.2" (8.11cm) Clear View II TFT, approx. 1040K dots
CoverageApprox. 100%
Viewing AngleApprox. 170°
CoatingAnti-reflection and Solid Structure
Brightness AdjAdjustable to one of seven levels
Display Options(1) Quick Control Screen
(2) Camera settings
(3) Dual Axis Electronic Level
Flash
Built-in GNN/A (ISO 100, meters)
Built-in CoverageN/A
Built-in Recycle TimeN/A
ModesE-TTL II Auto Flash, Metered Manual
X-Sync1/200sec (EX-series Speedlites only)
Exposure Compensation+/- 3EV in 1/2 or 1/3 increments
Exposure BracketingYes, with compatible External Flash
Exposure LockYes
2nd Curtain SyncYes
Hot Shoe/PC TerminalYes / Yes
External Flash CompE-TTL II with EX-series Speedlites, wireless multi-flash support
External Flash ControlVia camera menu
Shooting
Shooting ModesAuto+, Program AE, Shutter-priority AE, Aperture-priority AE, Manual (Stills and Movie), Custom (x3)
Picture StylesAuto, Standard, Portrait, Landscape, Neutral, Faithful, Monochrome, User Defined (x3)
Colour SpacesRGB and Adobe RGB
Image ProcessingHighlight Tone Priority
Auto Lighting Optimizer (4 settings)
Long exposure noise reduction
High ISO speed noise reduction (4 settings)
Auto-Correction of Lens Peripheral illumination
Chromatic aberration correction
Distortion correction
Resize to M1, M2 or S
RAW image processing - during image Playback only
Multiple exposures
HDR images 5 presets
Drive ModesSingle, Continuous L, Continuous H, Self-timer (2s+remote, 10s+remote),
Silent single shooting, Silent continuous shooting
Continuous ShootingMax. Approx. 5fps. (speed maintained for up to 510 number of JPEGs or 14 RAW images) with UDMA mode 7 card
Shutter Lag59ms
Viewfinder Blackout125ms
Live View
TypeElectronic viewfinder with image sensor
CoverageApprox. 100% (horizontally and vertically)
FrameRate29.97 fps
FocusingManual Focus (Magnify the image 6x or 16x at any point on screen)
Autofocus: Quick mode, Live mode, Live Face detection mode
MeteringReal-time evaluative metering with image sensor
Active metering time can be changed
Display OptionsGrid overlay (x3), Histogram, Aspect ratios, Dual Axis Electronic Level
File Information
Still ImageTypeJPEG: Fine, Normal (Exif 2.3 [Exif Print] compliant) / Design rule for Camera File system (2.0),
RAW: RAW, sRAW1, sRAW2 (14bit, Canon original RAW 2nd edition),
Digital Print Order Format [DPOF] Version 1.1 compliant
RAW+JPEG Simultaneous RecYes, any combination of RAW + JPEG possible, separate formats to separate cards possible
Image SizeJPEG:
Full Frame - (L) 8688x5792, (M1) 7680x5120, (M2) 5760x3840, (S1) 4320x2880, (S2) 1920x1280, (S3) 720x480
1.3x Crop - (L) 6768x4512, (M1) 6016x4000, (M2) 4512x3008, (S1) 3376x2256, (S2) 1920x1280, (S3) 720x480
1.6x Crop - (L) 5424x3616, (M1) 4800x3200, (M2) 3616x2408, (S1) 2704x1808, (S2) 1920x1280, (S3) 720x480
1:1 Crop - (L) 5792x5792, (M1) 5120x5120, (M2) 3840x3840, (S1) 2880x2880, (S2) 1280x1280, (S3) 480x480
RAW:
(RAW) 8688x5792,
(M-RAW) 6480x4320,
(S-RAW) 4320x2880
Movie TypeMOV (Video: H.264 Intra frame / inter frame, Sound: Linear PCM)
Movie Size1920 x 1080 (29.97, 25, 23.976 fps) intra or inter frame
1280 x 720 (59.94, 50 fps) intra or inter frame
640 x 480 (59.94, 50 fps) inter frame
Movie LengthMax duration 29min 59sec, Max single file size 4GB
Sound FilesN/A
FoldersNew folders can be manually created and selected
File Numbering(1) Consecutive numbering
(2) Auto reset
(3) Manual reset
Other Information
Wireless Features
GPS
Custom Functions13 Custom Functions with 47 settings
Metadata TagUser copyright information (can be set in camera)
Image rating (0-5 stars)
LCD Panel / IlluminationYes / Yes
Water & Dust ResistanceYes (equal to EOS-1N)
Sound MemoNo
Orientation SensorYes
Playback Zoom1.5x - 16x
Display Formats(1) Single image with information (2 levels)
(2) Single image
(3) 4 image index
(4) 9 image index
(5) Magnified view
(6) 2 image compare display
(7) Movie edit
Slide ShowImage selection: All images, by Date, by Folder, Movies, Stills, Rating
Playback time: 1/2/3/5/10 or 20 seconds
Repeat: On/Off
HistogramBrightness: Yes
RGB: Yes
Highlight AlertYes
Image Erase ProtectionErase: Single image, All images in folder, Checkmarked images, unprotected images
Protection: Erase protection of one image at a time
Menu Categories(1) Shooting menu (x4)
(2) AF Menu (x5)
(3) Playback menu (x3)
(4) Setup menu (x4)
(5) Custom Functions menu (x4)
(6) My Menu
Menu Languages25 Languages
English, German, French, Dutch, Danish, Portuguese, Finnish, Italian, Norwegian, Swedish, Spanish, Greek, Russian, Polish, Czech, Hungarian, Romanian, Ukrainian, Turkish, Arabic, Thai, Simplified Chinese, Traditional Chinese, Korean and Japanese
Interface
Computer InterfaceSuperSpeed USB (USB 3.0): for computer communication and direct printing
Other InterfaceHDMI Type C, External microphone (Stereo mini jack)
Canon Printer SupportCanon Compact Photo Printers and PIXMA Printers supporting PictBridge
Pict BridgeYes
Memory
Memory TypeCompactFlash Type I (UDMA 7 compatible), SD card, SDHC card or SDXC card (UHS-1 compatible)
Software
Browsing & Printing SoftwareImageBrowser EX
Image Processing SoftwareDigital Photo Professional
Other SoftwarePhotoStitch, EOS Utility (inc. Remote Capture, WFT utility*), Picture Style Editor
* Requires optional accessory
Batteries & Power
BatteryRechargeable Li-ion Battery LP-E6N (supplied), 1x CR1616 for date & settings
Battery LifeApprox. 700 (73°F/ 23°C)
660 (32°F/ 0°C)
Battery Indicator6 levels + percentage
Power SavingPower turns off after 1, 2, 4, 8, 15 or 30mins.
Power Supply Battery ChargersAC Adapter Kit ACK-E6, Battery charger LC-E6, Car Battery charger CBC-E6
Physical Specs
Body MaterialsMagnesium Alloy body covers
Shutter Durability Rating150,000
Operating Environment0 – 40 °C, 85% or less humidity
Dimensions Inches6.0 x 4.6 x 3.0" (152 x 116.4 x 76.4mm)
CIPA Weight32.8 oz (930g)
Accessories
ViewfinderEyecup Eg, Eg-series Dioptric Adjustment Lens with Rubber Frame Eg, Anti Fog Eyepiece Eg, Angle Finder C
Camera Case
Wireless File TransmitterWireless File Transmitter WFT-E7
Compatible LensesAll EF lenses (excludes EF-S lenses), TS-E and MP-E lenses
Compatible FlashCanon Speedlites (220EX, 270EX, 270EX II, 320EX, 420EX, 430EX, 430EX II, 550EX, 580EX, 580EX II, 600EX, 600EX-RT, Macro-Ring-Lite, MR-14EX, Macro Twin Lite MT-24EX, Speedlite Transmitter ST-E2, Speedlite Transmitter ST-E3-RT)
Battery GripBG-E11  
RemoteRemote control with N3 type contact, Wireless Controller LC-5, Remote Controller RC-6
OtherHand Strap E2, GP-E2


Highest Performance DSLR Camera Canon EOS 5DsR

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