Archive for July, 2016

Canon 100-400 mark II – salient features

Monday, July 18th, 2016

Canon-EF-100-400mm-f4.5-5.6L-IS-II

Canon 100-400 mark II

 3 modes of IS

Mode 1 -  Standard IS mode designed for use with stationary subjects when the Canon 100-400 IS ii & the camera is handheld

Mode 2 – is used for panning with a subject. In this mode, only 1 axis of stabilization is provided – allowing a linearly-moving subject to be tracked. Up and down movement tend to be difficult to track

Mode 3 – is great for action photography. In Mode 3, image stabilization is active and ready for use the moment the shutter releases, but actual stabilization is not in effect until that precise time. You are able to follow your erratically-moving subjects without fighting against image stabilization   The IS system auto-senses a tripod in use

Quick Auto focus The zoom is a quick performer, taking about 0.15 seconds to lock onto the subject when mounted on the Canon EOS 5D Mark III.

Focussing

A completely new inner-focusing system has been implemented in this lens.

A 2-position focus limiter switch is provided, allowing focusing distances to be limited to a specific distance range (9.84′/3m – 8) – or to be unlimited (Full). Limiting the focus distance range can improve focus lock times and reduce focus hunting.

This lens is not parfocal, meaning that refocusing is required after zooming. This is especially true at short focus distances where the subjects very obviously go into and out of focus during zooming. Using the near-parfocal feature of this lens is helpful for video recording while adjusting focal lengths. Video shooters will definitely appreciate the fact that subjects do not significantly change in size as they go in and out of focus

Polariser users will be happy that the 77mm filter thread doesn’t rotate on focus.

Decreased Minimum Focus Distance (MFD) This lens has an MFD of 980mm. (earlier lens MFD was 1800mm)

Increased Magnification This lens has a magnification of 0.31x. (earlier lens MFD was 0.2x)

Build –  This is a solidly built lens

The 100-400 II’s front and rear lens surfaces are fluorine coated to reduce water droplet, dust and fingerprint adhesion and to ease the cleaning effort required. This coating works great – the difference is noticeable.

Push Pull Zoom replaced with rotational zoom -  The rotating zoom ring gives more precise adjustment between focal lengths. The ring comes with a zoom torque adjustment ring allowing you to set the zoom ring from “Smooth” to “Tight” to suit your particular way of shooting.

The final control on the lens barrel is a focus mode switch with the usual AF/MF settings. Note that this lens usefully offers full-time manual focusing even when AF is selected.

Lens elements It has 21 lens elements in 16 groups (up from 17/14) into a telephoto lens design

Air Sphere Coating The new Air Sphere Coating (ASC) had been introduced on this lens. According to Canon: “The new Air Sphere Coating has been developed by Canon to minimise reflections and flare.

In the nutshell : The Canon EF 100-400mm f/4.5-5.6L IS II is a worthy replacement to the original 100-400. Not to forget the original 100-400 continues to be a great lens.

Sony FS 7 vs Canon C300 mark II – comparison

Monday, July 11th, 2016

FS7         Canonmark2

 

Internal specs  FS7  Canon C300 mii
Sensor Super 35mm Super 35mm
Resolution  4k  4k
Slow mo  180 @ 1080  120 @ 2k CROP
ISO sensitivity  2000  800
Dynamic range  14 stops  15 stops
Record format XAVC   10 bit XF AVC    10 bit

The cameras almost have similar specs but the C300 mark II costs twice as much!

Internationally it seems to have fallen behind the Sony FS7 though its has some advantages over the FS7

C300 mark II records 10 bit 4K in 4:2:2 at 410 Mbps per second.

The FS7 shoots 4K at 10 bit  in 4:2:2 at 240 Mbps.

So C300 is better for green screen work

The C300 Mark II has extra internal ND filters.

The C300 Mark II also has an additional stop of dynamic range.

FS7 is 14 stops.

FS7 records 60 fps at 4k & 180 fps at 1080 & so does C300 mark ii but the C300 does that with a cropped sensor !

You can get superb images from both cameras, so which is best for you is basically going to come down to the needs of your production and the budget.

 

 

 

 

Comparison between Sony A7R II & Canon 5DSR

Thursday, July 7th, 2016

Key Features Comparison

Untitled-1Untitled-2

 

 

Sony Alpha A7R II Canon EOS 5DS R
Sensor 42.4mp BSI FF CMOS 50mp FF CMOS
Image stabilisation YES NO
ISO range 50-102400 50-12800
Video spec 4K video FullHD
Mic / Headphone socket(s) Mic and headphone Mic only
Wi-Fi / NFC Wi-Fi and NFC None
Battery life 340 700

On the whole Both the camera will mainly cater to the still photography market. The 5dsr scores due to wider choice of lensing and higher mega pixels for sharper pictures while the Sony A7RII scored when it comes to low light, Image stabilization & 4k