A list of good/bad MFT lens for new owner?

Started Oct 1, 2012 | Discussions thread
shihhan Regular Member • Posts: 307
Re: 45-150 or 45-200

josbiker wrote:

Many thanks again.

So, if I am satisfied with the noise of ISO 3200 with the f2,8 with OIS what is than the difference in comparising with the f1.7 without OIS (i can use perhaps ISO 1600 but I get a more blurried picture)

So what is the nett result?

f2.8 at ISO 3200 means you can use the same shutter speed at f1.7 ISO 1600 (and achieve the same exposure).

The 1 stop difference means:

- f1.7 has smaller DoF, so better subject isolation (+ background blurring)
  - ISO 1600 is also considerably less noisy, which helps when you post-process the pictures

But the *main* difference is that with f1.7 you can shoot at half the shutter speed, which means you can freeze motion more effectively.

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