why not f/1.2 by Sony?

Started May 14, 2013 | Discussions thread
TiagoReil
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Re: why not f/1.2 by Sony?
In reply to stan_pustylnik, May 15, 2013

stan_pustylnik wrote:

TiagoReil wrote:

quezra wrote:

captura wrote:

Instead of concentrating on bigger f1.2/1.4 lenses, they could just make sure that OSS is installed in most of the new ones including the new Zeiss lenses. Stabilization is worth about 2 f-stops, anyhow.

Well the things OSS don't help with are DoF and shutter speed which is still necessary for fairly common objects of photography (e.g. active children).  But yes, for anything static OSS is just fine.

IF you cant get children moving with an 1.8 lens cause of speed, then you wont get them with a 1.2 too. Remember that is a stop of light, and not even that, probably it is that a 60, 70 % of a stop of light cause of the sensor problem. So with a 60%, 70%, you really think you will get those kits moving static? It is not enough. Yes, everything counts, but if you got movement at 1.8, you are still are going to get it at 1.2

There is big difference in 1 stop for indoor photography where benchmark lenses f/1.2; f/1.4 rule, difference between 8", 4", 2", 1", 2, 4, 8, 15, 30, 60, 125, 250, 500, 1000, 2000 is huge.

  • 1/1000 s
  • 1/500 s
  • 1/250 s
  • 1/125 s
  • 1/60 s
  • 1/30 s
  • 1/15 s
  • 1/8 s
  • 1/4 s
  • 1/2 s
  • 1 s

source: http://en.wikipedia.org/wiki/Shutter_speed

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Person is taking photos, not camera. When photograph is bad, it's because photographer doesn't know how to choose settings optimal to "own preferences". Then blames camera for bad IQ.
This is same as blaming car about arriving to wrong destination.
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A stop of light (again, actually not a stop, 60, 70%) is a lot if you already have speed (from 125 to 250) but it is not if you are closer to 1 second (1 second to half, you still get movement). HE is talking in particular about movement of subject. IF your subject is moving, then that 70% wont make it completely stil. Yes, if it has just a bit, so a bit small that makes it a bit blurry, a bit less sharp, then  yes, that 70% of a stop could make the difference (and a bit more of ISO too) but unless it is already too close, it is not going to do that much. And the cost of a 1.2 vs a 1.8 is really really not worth it.

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