In-Depth: 4K Mirrorless Cameras: Sony A7 Series, Panasonic GH4, and More

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In-Depth: 4K Mirrorless Cameras: Sony A7 Series, Panasonic GH4, and More

Session Overview

Looking to add an affordable 4K camera into your workflow? You'd be wise to consider the Panasonic GH4 or Sony a7 Series. This class takes an in-depth look at these two popular cameras and the surrounding ecosystem.

Session Overview

Join director Richard Harrington and DP Eduardo Angel as they explore the complete workflow. You'll lean how to choose lenses, extend your camera's capabilities with professional accessories, and set up your camera to capture the right file formats for your production.

Objectives

An understanding of mirrorless interchangeable lens cameras

Evaluating the impact of sensor size

Recording in-camera and with an external recorder

Choosing lenses and accessories for 4K cameras

Adapting 4K cameras with cage and rail systems

Improving recording quality

Using LOG recording

Richard HarringtonI'm a visual storyteller exploring the fusion of photography and video. I'm all a husband & father

Vital StatisticsAuthor 40+ Books

Author 100+ Video Courses

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Vital StatisticsEmmy Award winning Visual Storyteller

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SVA & ICP Faculty

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What is 4K?twitter.com/ rhedpixel


Ultra HD

UHD is a resolution of 3840 pixels 2160 lines with an aspect ratio of 16:9

Its image totals 8.3 megapixels

Its one of the two resolutions of ultra high definition television targeted towards consumer television

UHD has twice the horizontal and vertical resolution of the 1080p HDTV format, with four times as many pixels overall

Digital Cinema Initiative 4K

The Digital Cinema Initiatives consortium established a standard resolution of 4096 pixels 2160 lines with an aspect ratio 256:135 for 4K film projection.

Its image totals 8.8 megapixels

This is the native resolution for DCI-compliant 4K digital projectors and monitors.

Digital Cinema Initiative 4K

Pixels are cropped from the top or sides depending on the aspect ratio of the content being projected.

DCI 4K does not conform to the standard 1080p Full HD aspect ratio (16:9)

4K digital films may be produced, scanned, or stored in a number of other resolutions depending on what storage aspect ratio is used In the digital film production chain.

Streaming Video

YouTube and Vimeo allow a maximum upload resolution of 4096 3072 pixels

This means 12.6 megapixels if using an aspect ratio 4:3)

High Efficiency Video Coding should allow the streaming of content with a 4K resolution with a bandwidth of between 20 to 30 Mbps.

Format Resolution Aspect Ratio Pixels

DCI 4K (CinemaScope cropped) 4096 1716 2.39:1 7,028,736

DCI 4K (flat cropped) 3996 2160 1.85:1 8,631,360

DCI 4K (native resolution) 4096 2160 1.90:1 (256:135) 8,847,360

Ultra-high-definition television 3840 2160 1.78:1 (16:9) 8,294,400

Ultra-wide television 5120 2160 2.33:1 (21:9) 11,059,200

WHXGA 5120 3200 1.60:1 (16:10) 16,384,000

https://en.wikipedia.org/wiki/CinemaScopehttps://en.wikipedia.org/wiki/Arnoldscopehttps://en.wikipedia.org/wiki/Digital_Cinema_Initiativeshttps://en.wikipedia.org/wiki/Native_resolutionhttps://en.wikipedia.org/wiki/Ultra-high-definition_televisionhttps://en.wikipedia.org/wiki/16:9https://en.wikipedia.org/wiki/Ultra-wide_television

What are the Benefits of 4K?



What are the Benefits of 4K?

Footage is Future-Proofed

Drastically Improved Image Quality

Consumer Demand

Increased Distribution Options

Easily Down Converted Universal Master

Post Production Benefits

Fix Jitter

Reframe

Digital Dolly

Zoom In/Out

Fix Tilt

For Your Consideration

Film has resolved at 4K for nearly100 years Companies like RED and more recently Blackmagic

Design have pushed 4K to becoming a standard with wider adoption by media professionals

Broadcasters are dragging their feet on 4K due to costs involved.


Cameras Change five times faster than our editing tools

Remember that RED is only 10 years old. Tapeless Production is only 13 years old Raw or Log workflows always generate more data on

set and more work in post


Bigger image equals more costs We prefer flexibility in our workflow Add 4K when budget allows, longevity is important,

or recomposing the frame is needed

Moving 2-3 Terabytes of data per camera, per day, is now common

The Rise of Affordable 4K



Selecting Cameras for this Class

Selecting Cameras for this Class

Mirrorless

Affordable

Shipping

Rich lens system

LOG support

Multiple shooting styles

Internal 4K

External recording options

A Quick Look at the Sony a7S and a7SII

Sony a7S

Favors video recording

Trades resolution for lowlight performance

Picture profiles that are video oriented

High Frame Rate = 720p: up to 120fps

Sony a7S II

Internal UHD 4K Recording

Slog 2 and Slog 3 gamma functions

Gamma display assist (View in Rec 709)

5 axis image stabilization

120fps @ 1080P quality (results in 2.2x center crop of image)

Sony a7S II

Native ISO 1600 in 4K and Full HD

Reduced rolling shutter

Cleaner in low light situations than A7R

APSC lenses will vignette in 4K (can only use them in HD)

Has the low pass filter

A Quick Look at the Sony a7RII

Sony a7RII

Slog 2 only

Gamma display assist

Up to 120fps in Full HD

APSC Super 35 in crop mode in 4K

A7R doesnt have the low pass filter, which makes it good for timelapse

More Auto Focus Points (399 vs 169)

Sony a7RII

Slightly more rolling shutter

It can produce 42MP still images, a resolution almost 4x higher than the a7S II.

The option of a great crop mode in 4K besides the full frame (FF usable if you have sufficient light).

Good lowlight in crop mode.

Image quality drops at 6400 ISO

A Quick Look at the Panasonic DMC-GH4

Panasonic DMC-GH4

Records Cinema 4K (@24.00 fps) 4096x2160

Ultra HD (23.98fps) 3840x2160

Rolling Shutter minimal at 60 & 30fps (Due to new CMOS and VENUS Engine)

Image quality drops at 3,2oo ISO

100 mbps | IPB compression (INTERFRAME)

200 mbps | All Intra compression (INTRAFRAME)

Panasonic DMC-GH4

Unlimited continuous recording (64GB card is approx.. 80 mins in 4K)

Sony has a 30-minute limit

HDMI out is 4:2:2 10 bit color (4K video via HDMI)

Internal recording is 4:2:0 8-bit

Interface Unit (AG-YAGH)

Cost is $2,000

4K HD-SDI output w/ time code, XLR audio

For professional audio video interfaces

Use this if micro HDMI scares you

SIMULTANEOUS Internal/External Record

Factors that Affect the Quality of the 4K Video File



Understanding the Impact of Sensor Sizes

Full Frame Sensor Cropped Sensor

35mm vs. Medium Format

H6D-100cH.264 Compressed & Hasselblad RAW

Choosing Internal or External Recording

Internal Recording

Newer models offer internal 4K recording

When using a camera rig or usage requires taking advantage of compact size of camera

Less chance for error

Less power needed

Embraces compact size

Understanding Speed

Pay close attention to the class of card and your needs for shooting

Carry a mixture of brands and sizes

SD 5.0 Memory Cards will support 8K, 3D, and 360 video

External Recording

When frame rates higher than 30 fps at 4K resolution

With older cameras that dont offer internal 4K recording

Models like Atomos offer external monitoring, focus assist, waveform

Can record deeper color depth (10 bit)

Records Uncompressed 4K and audio (internal is always 4:2:0)

Longer record times, on affordable media like SSD drives

Records to familiar codecs like Pro Res, Avid DnX

Atomos Shogun 4K

1920x1200 IPS Touchscreen Display

Records 4K (3840x2160) up to 30 fps

Records 1080p up to 120 fps

ProRes and DNxHD 10-Bit, 4:2:2 Encoding

12G-SDI Input and Loop-Output

Odyssey 7Q

Atomos Shogun

SmallHD DP7

Understanding the Role of aLow Pass Filter

The Role of aLow Pass Filter

No filter is good for stills, landscapes

Filter blurs the image at the pixel level

Landscape photographers dont need them as much, as moire occurs in fine, repeated patternsless likely to encounter this in landscapes

Some sensors minimize color moire and aliasing without filters

Post-processing can correct some of this (spot correcting)

New to Mirrorless cameras to not have AA filter

When the pixel count is high enough, Mirrorless cameras can do away with the AA filter

The Role of aLow Pass Filter

NO FILTER

Canon 5DS-R removes the low pass filter

Sony RX1R II has a VARIABLE low pass filter

Sony a7R II has no low pass filter

LOW PASS FILTER

Sony a7S II has low pass filter

Panasonic GH4 has low pass filter

Understanding Audio Limitations

4K Shooting Tips

Focus Peaking

Timelapse is 4K+

Color Mapping Matters

Shoot Log or Film Space

Sony S-Log Panasonic V-Log Canon C-LogFlat profiles provide more flexibility during post processing, but usually requires more time.

Lighting Requirements Vary

Exposure Triangle

Impact of Light and Motion on Focus

If youre shooting a lot of motion, pay close attention to both the amount of light as well as the quality of light

The less light thats available, the larger an aperture youll have to use in order to record a properly exposed image.

This means that your depth of field will decrease and it will be much harder to keep your subject in focus.

If you or your subject are moving, it gets even more tricky

The Window

Imagine your camera is a window with shutters that open and close.

Aperture is the size of the window. If its bigger more light gets through.

Shutter Speed is the amount of time that the shutters are open. The longer theyre open, the more that comes in.

Inside the room and are wearing sunglasses. Your eyes become desensitized to the light that comes in (like a low ISO).

Lenses for 4K Workflows



Resolution Requirements for 4K Lenses

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Title Text

http://www.urlgoeshere.com

Use a TargetCombine with Focus

Peaking to check

Olympus M.ZUIKO DIGITAL ED 12-40mm F2.8 PRO

Focus Type Stepper motor

Item Weight .84 pounds

Lens Design Telephoto Zoom lens

Maximum Aperture /2.8

Minimum Aperture /22

Number of Diaphragm Blades 7

Number of Elements 14

Number of Groups 9

Olympus M.ZUIKO DIGITAL ED 40-150mm F2.8 PRO

Focus Type Stepper motor

Item Weight 1.94 pounds

Lens Design Telephoto Zoom lens

Maximum Aperture /2.8

Minimum Aperture /22

Number of Diaphragm Blades 9

Number of Elements 16

Number of Groups 10

Working with Cinema Lenses

Sony 28-135mm FE PZ F4 G

G-series optical design ideal for HD and 4K moviemaking

Minimized angle of view variation (breathing) while focusing

No focus shifting or axial displacement while zooming

Independent Zoom, Focus and Iris rings for superior control

Constant F4 max aperture maintains exposure / depth of field

SLR Magic 25mm T0.95 Hyperprime Cine II Lens

Focus type: Manual

Focal length: 25mm (50mm MFT)

Maximum aperture: T0.95

Minimum aperture: f/16

Working with Specialty Lenses

Color

http://bit.ly/AnamorphicLessons

Lensbaby

Velvet 56

Creative Effect: Soft and Velvety

Focal Length: 56mm

Aperture: f/1.6

Minimum Focusing Distance: 5"

Format Compatibility: APS-C and Full Frame

Diaphragm Blades: 9

Elements/ Groups: 4 Elements/ 3 Groups

Lensbaby

Composer Pro System Kit

Creative Effect: Sweet 35 and Sweet 50: Sweet Spot of Focus; Edge 80: Slice of Focus

Focal Length: Sweet 35: 35mm; Sweet 50: 50mm; Edge 80: 80mm

Aperture: Sweet 35 and Sweet 50: f/2.5; Edge 80: f/2.8

Minimum Focusing Distance: Sweet 35: 7.5"; Sweet 50: 15"; Edge 80: 17"; Macro Converters: from 1.63"

Angle of Tilt: 17.5

Diaphragm Blades: All: 12

Elements/ Groups: Sweet 35: 4/3; Sweet 50: 2/1; Edge 80: 5/4

Lomography Experimental Lens Kit

Standard 24mm lens

Wide angle 12mm lens

Fisheye

Plastic lenses with unique character

SLR Magic 'Toy' 26mm f/1.4 Lens

Focus type: Manual

Focal length: 26mm (52mm)

Maximum aperture f/1.4

Min aperture f/16

Criteria When Choosing Lens Adapters

Lens Adapters

Lens mount vs. camera mount

Sensor size

Smart adaptor that retains electronic communication with the camera/lens

Adaptors that convert full frame to APS-C

Adaptors that convert 4/3 to Full Frame

Lens support, weight, rail support

Some adaptors offer increased stop (speed booster)

Supporting the Lens

Supporting the Lens

Camera mounts not designed for larger lenses

Can place strain on bayonet mount

Poor support can result in back-focus issues

Leads to soft images

Especially true for cinema lenses, without rail support system

15mm rail support most common

Specialty Lenses for 4K Workflow

Specialty Lenses for 4K Workflow

Many choices in adaptors now allow for wider variety of lens choices.

Includes specialty lenses from used in other systems

Macro

Tilt Shift

Lens Baby

Fisheye

Anamorphic

Lensbaby

Velvet 56

Creative Effect: Soft and Velvety

Focal Length: 56mm

Aperture: f/1.6

Minimum Focusing Distance: 5"

Format Compatibility: APS-C and Full Frame

Diaphragm Blades: 9

Elements/ Groups: 4 Elements/ 3 Groups

Lensbaby

Composer Pro System Kit

Creative Effect: Sweet 35 and Sweet 50: Sweet Spot of Focus; Edge 80: Slice of Focus

Focal Length: Sweet 35: 35mm; Sweet 50: 50mm; Edge 80: 80mm

Aperture: Sweet 35 and Sweet 50: f/2.5; Edge 80: f/2.8

Minimum Focusing Distance: Sweet 35: 7.5"; Sweet 50: 15"; Edge 80: 17"; Macro Converters: from 1.63"

Angle of Tilt: 17.5

Diaphragm Blades: All: 12

Elements/ Groups: Sweet 35: 4/3; Sweet 50: 2/1; Edge 80: 5/4

Lomography Experimental Lens Kit

Standard 24mm lens

Wide angle 12mm lens

Fisheye

Plastic lenses with unique character

SLR Magic 'Toy' 26mm f/1.4 Lens

Focus type: Manual

Focal length: 26mm (52mm)

Maximum aperture f/1.4

Min aperture f/16

Variable Neutral Density Filter

Tiffen Variable Neutral Density Filter

Provides 2 to 8 stops of light control

Thin profile ring .9mm

Wider outer optic to help reduce vignetting

Padded black nylon pouch

Made in the US with high quality optical glass using Tiffen's ColorCore Technology

Tiffen 10-Year Warranty

Match The Lens To The Shot

When To Use Prime Lenses

Most DPs choose primes both on feature films as well as independent projects for two main reasons: speed and sharpness.

A quality prime lens with a wide aperture of f/1.2 to f/2 will allow you to shoot in existing light or low-light environments more easily.

Primes are universally faster than a zooms due to the way they are manufactured.

When To Use Prime Lenses

Prime lenses have less moving parts, and fewer elements than zoom lenses. The result is a sharper image.

Primes are great for videos where you have control of the environment. You are stuck with the focal length

If you can block out any movement in the scene in advance, control the lighting and want that nice short DOF that these lenses deliver, then prime lenses are a good choice.

When to Use Zoom Lenses

When you need to change focal length quickly and/or you need the versatility of those different focal lengths

Zooms are generally slower than a fast prime, so youll need to raise your ISO higher to match the exposure

Many documentary shooters use zooms because there isnt any way to stop the event or subject just to change lenses

Able to go from a 50mm standard shot of the interviewee to a 200mm close-up

Adapting the 4K Camera with a Cage or Rail System



When to Use Rails

When to Use Rails

Follow Focus

Matte box

Battery adapters

Heavier lenses

When to Use a Cage

When to Use a Cage

Sometimes you need to build camera out with a cage for accessorizing

External recorders, monitors, viewfinders, lens control motors , cable locks

Protection from impact

More attachment points for rigging shots

Attaching a Viewfinder

Extending the Battery Life

Powering the Camera

When shooting video, your camera will need much more power than you usually use when just shooting stills.

First, youll be using the Live View function of the camera which means powering the LCD continuously

Second, to record video, your cameras processors and memory card are working all the time.

Powering the Camera

Your cameras default settings for the live view mode includes shutting it off after a couple minutes. Leave this as is.

Its essential to have additional batteries with you when shooting video.

Pack five batteries per shooting day for each camera body.

If charging batteries is an easy option, you can get by with less (3 per camera)

Using a Battery Grip

Two batteries are in use.

Sometimes one is contained in the grip and one in the camera body. Other times, two are in the grip itself.

This added power is great for shooting video because youll be using the live view mode on your camera all the time.

A battery grips often allows you to change batteries quickly since the battery door is located on the rear or side of the grip.

Tethered Power

If you are in a studio or other location where AC power is available for a longer period of time, an AC power adapter is a good alternative

The only downside to them is that it limits camera movement, especially if you are on a jib or dolly.

We'll often power a camera with AC power for stationary shots (like interviews), then switch to a battery when on the go.

Atomos PowerStation

Continous power

Two USB ports

Battery plates for many devices

Charge then go

Tether Tools Case Relay

More cost effective than purchasing multiple proprietary camera batteries

Power sources are non-proprietary. Power your camera with the same 5V battery you use to charge phones or tablets.

Never need to charge camera batteries again. And never run out power.

Compatible with most Canon, Nikon, Sony, Panasonic, Fuji, and Olympus cameras.

A Relay Camera Coupler (sold separately) is required to use Case Relay Camera Power System.

Managing Cables and Avoiding Port Strain

Other Support Gear

Camera Rails

Really Right Stuff

Length: 18" / 457mm

Width: 1.5" / 38mm

Height: 0.9" / 23mm

Weight: 1.5 lb / 684g

StrapMoore

The StrapMoore is a handy contraption that secures to the leg of any tripod, light stand, pole, beam, table, chair and much more. Use it to secure a laptop power brick, charger, phone, off-camera flash, transmitter/receiver, microphone, battery, external hard drive or anything else that's handy to have nearby during a photo or video shoot.

RapidMount Accessory Extension 8

The Rock Solid Extension Bar 8 (200mm) accessory rail allows the mounting of multiple pieces of photography or video gear (microphones, recorders, transmitters, Look Lock, lights, flashes, etc.) to a camera or arm in a secure, convenient, and compact manner.

Works with the hot shoe

Suction Cups

FilmTools

Gripper 3025 - The Filmtools 6" Suction / Vacuum Cup Camera Mount

Filmtools 6" Suction Cup w/ Baby Spud Mount Kit

4.5" Suction / Vacuum Cup with 3/8-16 Spud

Platypod Pro

Shoot low angle, table top or uneven surfaces

Travel tripod that fits in your pocket

Compatible with your ball head to support up to 90 lbs. of photography equipment

Includes: Platypod Pro base, screw set, to 3/8 spigot adapter, and travel case

Camera Control Apps



TriggerTrap

Requires an adapter for smartphones and tablets

Use a camera specific cable

Recommend attaching tablet or phone to tripod

Use airplane mode to avoid calls and emails which can trigger the device.

TriggerTrap

Sensor modes:

Sound sensor - clap, whistle or tap

Vibration sensor - vibrations and earthquakes

Motion sensor - detects movement. Catch people with their hand in the cookie jar!

Peekaboo - facial recognition

TriggerTrap

Timelapse modes:

Timelapse - travel through time

TimeWarp - timelapse with acceleration

DistanceLapse - perfect for road trips

Bramping - bulb ramping timelapse to keep your exposure smooth

Star Trail mode - extreme exposure control to create stunning images of the night sky

TriggerTrap

HDR modes:

LE HDR - Long exposure HDR sets with up to 19 exposures

LE HDR Timelapse - create timelapses with all the detail of HDR

Triggertrap Timelapse Pro

Timelapse Pro lets you create sequences using the building blocks of timelapses - intervalometers and delays.

Timelapse Pros intervalometers allow you to set your interval between shots, as well as when youd like the intervalometer to stop; either by the number of shots or after a set amount of time has passed.

Save and name your timelapses so you can quickly access them again later.

Control with an Apple Watch or a Pebble Smartwatch

Panasonic Image App

Use your smartphone to remotely control the shooting and playback functions of a Wi-Fi-compatible digital camera/digital video camera

Watch the same image as on the Live View screen

Control shooting and other camera operations as with a wireless remote controller.

Play back and delete still pictures and videos recorded on your smartphone. (*2) (*3) You can also copy them to your smartphone,

Add location information acquired with your smartphone to pictures recorded using your digital camera.

PlayMemories Mobile

Send photos and videos to your smartphone

Remote shooting from your smartphone

Control the camera, making it useful when taking a photo or video in situations where you dont want to be holding the camera directly: such as night scenes or macro photography.

Using the smartphones location information service,

Operate various settings of the camera from your smartphone: viewing, shooting, zoom, touch-AF, etc.

Improving Recording Quality



The Use of a LOG color profile

Understanding In-Camera Recording Options

PANASONIC GH4 SETTINGS

Selecting the Right Memory Cards for In-Camera Recording

Using an External Recorder for Uncompressed Recording

Essentials When Monitoring 4K Cameras

Tether Table Aero System

The Tether Table Aero Standard provides photographers with a stable portable tethering platform, perfect for daily studio use and the ideal out-of-studio workspace.

Made completely of T6 Aerospace aluminum, the stunning brushed silver or non-reflective black textured platform was conceived by professional photographers and designed by aerospace engineers. This supremely functional platform is unsurpassed in stability & durability.

Dell Ultra HD 4k Monitor 27-Inch LED

Screen Size 27 inches

Max Screen Resolution 3840 x 2160 pixels

With 99% sRGB color coverage

Ultra-wide viewing angle at 178/ 178

$699.99 (list) $540 (street)

Studio Vu-2 Monitor Mount

TetherTools

The Studio Vu-2 Monitor Mount holds monitors up to 85lbs and can be mounted to common C-stands and Light stands utilizing the standard 5/8(16mm) Baby Junior pin.

The VESA Compliant mount is made of aerospace aluminum and features dual 5/8 studs for mounting in portrait or landscape orientation.

Additional Equipment to Benefit the 4K Camera



4K Postproductiontwitter.com/ rhedpixel


Post Requirements

What are you doing determines some of your Workflow (Industrials, Commercials, Episodic, or Features)

Planning for an Offline / Online workflow? Project Versioning Graphics and VFX as well as Rendered Media Finishing and Grading are at a new level

On Set Workflow

Studio Workflow

EQUIPMENTHard Drives

CalDigit MINI

Gtech Gsafe RAIDGtech Gdrive MINI

WD My Book Duo

READ http://bit.ly/HDdeadNowWhat

Samsun SSDs

G-Technology All-Terrain Enclosure with Thunderbolt

http://bit.ly/HDdeadNowWhat

Post Workflow

Post Workflow

Offline vs. Online Work with proxy media or just drop preview quality? Cutting in 4K or using 4K sources Performance Storage

Stills from 4K

Getting In Touch with Rich


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RichardHarrington.com

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Getting In Touch with Eduardo

twitter.com/EA_Photo

facebook.com/Eduardo-Angel-Visuals-

plus.google.com/+EduardoAngelVisuals

linkedin.com/in/eduardoangel

eduardoangel.com

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Bookstore

www.RichardHarrington.com

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eduardoangel.com

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Bookstore

Win a Copy of Perfectly Clear Complete for Photoshop and Lightroom

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Win a Drobo 5D or 5NFollow

TweetI want to win a @Drobo from @rhedpixel at #NABSHOW



In-Depth: 4K Mirrorless Cameras: Sony A7 Series, Panasonic GH4, and More

In-Depth: 4K Mirrorless Cameras: Sony A7 Series, Panasonic GH4, and More

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Transcript of In-Depth: 4K Mirrorless Cameras: Sony A7 Series, Panasonic GH4, and More