Re: The DSLR Thread ing
Quote:
Originally Posted by NetfreakBombay Working on custom firmware for D5300, so had to look into innards of autofocus module. current generation of Canon does have three advantages over Nikon in crop bodies like D5300 / D7100.
1. Center AF point in Canon 60D / 70D is dual cross type
2. Cross type AF points are spread wider across the viewfinder
3. CMOS chips have phase detect sub-pixels on sensor chip itself (Nikon's system depends completely on contrast detect for Live View)
Some of it due to trade-offs made in Fujitsu Milbeaut / SONY EXMOR ive - modules that Nikon depends on. |
Interesting. From a theoretical perspective - for certain types of shooter - yes, I can see why Canon could be compelling.
For action shooting, from a field perspective - I am not so sure. And yes, i have seen those videos where the cameras are in 3D or auto mode and the shooter try to track moving subjects. The thing is, I haven't read of any pro shooter who shoots in auto or 3D mode where the decisions are left to the camera. And I don't know exactly what AF settings were used e.g. what focus lock mode was used?
I can only speak about nature and wildlife shooters, since that is a genre that I am familiar with. No pro shooter uses a AF point that is far away from the central points, if there is any chance of the subject moving, None of them shoot in live mode for any dynamic subject. Folks typically use a dynamic AF mode (single/9/21 points - and the Canon equivalent) for moving subjects. You seldom come across subjects where a 3D mode is worthwhile (where the camera follows the subject across all the AF points - that is where the spread cross type AF points will be useful). And one only uses 3D mode for extremely dynamic and unpredictable subjects - say a bee - where there is a clear demarcation b/w the subject and the background.
Having said that, I do read that the 1DX AF (or for that matter, 5D Mk III) is extremely powerful - better than the D4 AF. D4S AF (the group AF) has supposedly surpassed the 1DX benchmark for action shooting, but my 'knowledge' is from hearsay and internet gossip.
Btw, for nature still shooting - where AF is not that important - there isn't a FX camera that can beat the D810, or even the D800E. Though I am sure that Canon would move the goalposts pretty soon with a new launch.
Canon and Nikon are an oligopoly. Moving the goalposts in turns. Some claim that there are hidden common investors who make sure that none of the companies threaten each other badly.
Last edited by nilanjanray : 6th August 2014 at 23:52.
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