Can lens stabilisation blur the picture ?

October 25th, 2016

IS

Keep the Lens Stabilisation ON only when the camera is handheld.

Many camera lenses come with some kind of lens stabilization technology. Nikon calls it  (VR) or Vibration Reduction” & Canon calls it IS or Image Stabilization” It helps to stabilize our image when you’re forced to hand-hold your camera; so do we keep it on all the time ? The answer is NO.

You should always make sure to turn it OFF when your camera is on a tripod.

How does the stabilization technology work ? The stabilization technology works by unlocking part of your lens. This helps the lens to “correct” movements. But, when your camera is sitting still on a tripod, the stabilizer will often look for movement that isn’t there, resulting in a blurry photo. See the example below in which camera was locked onto a stable tripod. In the image on the left,  the lens stabilization turned OFF. And, then it is turned ON for the image on the right. Untitled-1Untitled-2

In both the photos all parameters were the same, the only difference was that lens stabilization was turned ON in the photo on the right.

Sony E mount 85mm G master Block lens

September 1st, 2016

1454514360000_1222775     tumblr_o2u8utiuBw1riqz0xo1_500

 

Lens Sony 85mm Block
Mount E mount
F 1.4
Min focus distance 80cm
Blades 11

 

Overall

Sony E mount 85mm G master Block lens gives great sharpness and Bokeh & capture great details. So it’s a great lens.

 

Advantage of Sony E mount lens

-          Native AF system.

-          Benefits from all of Sony’s features including Eye AF

-          Works perfect with Sony A7s II, Sony A7R II, A7R, A7s etc.

 

AF / MF switch

-          AF/MF switches

-          Programmable Fn button (defaults to Focus Hold).

One can set the button to activate Eye AF for natural and easy access to the setting during use.

 

Operations

-          Rubberized focus ring helps you operate the lens smoothly

-          Improved focus-by-wire system helps these lenses to have a more natural feel does not seem to ramp up or down in speed depending on how fast you turn it.

 

Aperture ring

-          The integration of a physical aperture ring, allows to be clicked or de-clicked with a switch which makes it a great option for video shooters, as well as photographers.

 

Physical details

-          The small ridge on the bottom of the lens ensures that the lens’s aperture and focus rings are not lying directly on any surface when the camera is laid down.

 

Some Cons

The lens is slower than other native options due to the use of an older, and louder, Linear SSM system to move the large elements precisely, which could be changed by using the Direct Drive SSM available in many current models.

 

Chromatic Aberration at F1.4

There is a noticeable amount of chromatic aberration on high-contrast edges at f/1.4 which could of course be easily corrected in post

 

Tips : It gets better as you stop down, peaking at about f/4-5.6, where it will optimize the performance. Vignetting is also very well controlled and flare is nonexistent.

 

Focus Ring

There are still no witness markings on the lens and no hard end stops which makes them less appealing for use with follow and remote focus units.

They would work well with smaller handheld gimbals rather than larger Steadicams and gimbals

 

GoPro Camera (Hero 4 & Hero 3+)

August 22nd, 2016

 

 

 

 

 

 

 

…                                                                            Hero 4 Black                                      Hero 3+ Black

Weight/weight with housing                     88g/152g                                             74g/136g

Video mode /Max frame rate                   4K / 30fps                                          4K / 15 fps
…                                                                          2.7K / 50 fps                                     2.7 K / 30 fps
…                                                                         1440p / 80 fps                                   1440p / 48fps
…                                                                         1080p / 120 fps                                1080p / 60 fps
…                                                                         960p / 120 fps                                   960p / 100 fps
…                                                                         720p / 120fps                                    720p /120fps

High Bitrate (H.264)                                   60Mb/s                                                 45 Mb/s

Protune                                                            Video + Photo                                    Video

High Light Tag                                               Available                                               -

Wifi                                                                      Available                                             Available

Bluetooth                                                        Available                                               -

 

 

 

 

 

 

Canon 5D Mark IV – Unconfirmed Specs

August 19th, 2016

Canon-EOS-5D-Mark-IV

Sensor : 30.4 mp or is it 28 mp

Frame rate : 7 fps

4K at 25/30 fps (120 fps at 2K)

Processor : Digi 6+

Dual Pixel Raw AF

4:2:2 / 500 mbps

So after seeing the success of Sony A7S ii, has Canon fallen back in the race ?

The basics of 360 videos

August 4th, 2016

 

360 degree videos are moving well in a big way globally, across social media platforms, video channels, industries, and just about anywhere else videos can be used. Giving viewers a immersive viewing experience of 360 degree videos. They can be used anywhere from face book to YouTube, editorials to businesses, the world has turned to 360 degree videos to engage audiences in an interesting way.

 

 

1

 

Kindly click on the image above to get an idea of creating a 360 degree videos at a glance.

 

 

Popular 360 cameras

Today, several amateur cameras are available to capture 360 degree videos such as the Ricoh Theta, Samsung 360, Kodak SP360, Bublcam, Nokia OZO, Giroptic 360cam, or one could use the professional set of six GoPro cameras. (see image)

360 Degree Gopro Rig By Accord

 

How are 360 Videos shot

360 degree videos are video recordings of a real-world panorama (wide-angle view),one can record views in every direction at the same time, and shot using an omnidirectional camera or more than 1 camera. It’s like a virtual reality (VR) video except that you need a VR headset to view VR videos whereas you don’t need a special headset to view 360 degree videos.

 

360 video output

Most amateur cameras shoot and create 360 videos on their own, however if you use the professional gopro setup or any other multi camera setup then it would need professional post production before uploading on different medias.

 

How 360 videos are viewed

360 degree videos can be played on a computer; the mouse is used to pan around for a 360-degree surround view and a 180-degree vertical view

 

Examples of 360 videos

 

A 360 surgical training video demo

https://www.youtube.com/watch?annotation_id=annotation_4243919275&feature=iv&src_vid=VAUbacNs4MQ&v=n7ALZkPoTYQ

 

A 360 tourism promotion video

https://www.youtube.com/watch?v=aq9nXIVTkug

 

A 360 film promotion Video

https://www.youtube.com/watch?v=A6aRkhlqWuE

 

They are lately being used in…Virtual product demonstrations, Virtual site inspections, Event marketing etc