Panasonic 7~14mm or Olympus 12mm ?

Started Jan 18, 2013 | Discussions thread
Anders W
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Re: Hmmmmm.......
In reply to tedolf, Jan 22, 2013

tedolf wrote:

Anders W wrote:

tedolf wrote:

is not it's field of view.

At 24mm equivalent FF FOV, it's wide enought to be a very good street/candid lens, and a good interior travel lens.

The big deal about this lens is the DOF scale that allows you to set the hyperfocal distance and the ability to zone focus.

Why would you want to use hyperfocal distance?

http://www.trenholm.org/hmmerk/DOFR.html

interesting article with a good example (and I do like the fact that he used a Leica/Minolta CL, the greatest camera of all time) but all I really learned from it was be conservative when selecting a scene for hyper-focal technique. I still trust it more for outdoor sports than any AF system.

I asked why you would want to use hyperfocal distance, not how to set it (which you can do via MF as well as AF). And why would you want to use it for sports?

And why would you want to zone focus on a lens capable of fast AF?

Because lenses that you can set the hyper-focal distance on ususally cost about $50.00 or less.

The question was why you would want to use it if you have AF, not why you should buy MF lenses. You were talking about the 12/2 and what you claimed was its "big deal", remember?

On an expensive lens like the 12mm, zone focusing is much faster than any PDAF system.

Sure. There isn't any PDAF system with which you can use the 12/2. So what?

Also, it never makes an error-ever.

Zone focusing errs pretty much all the time by having focus set slightly off target pretty much all the time.

So, it you want something really wide, that isn't this len's strong suit.

Tedolph

Tedolph

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