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Re: Sure.
In reply to Great Bustard,
7 months ago
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Great Bustard wrote:
Sure. It does the same job as 90mm f/3.5 on FF or 60mm f/2.5 on APS-C. If you need more blur, get the 75 / 1.8, presuming the longer perspective is desirable and you have the room to frame it.
If I end up getting an EM5, the 45 / 1.8 and 75 / 1.8 will both be "must have" lenses for me.
"If you need more blur, get the 75 / 1.8"
i am assuming if OP had a 75 or any other FL (focal lenght) lens he would have framed the main subject the same way so...
i am under the impression that if the man is framed (head/torso) the same way
then using a 12, 45, or, 75, or, 150, or any other lens on the same camera at same aperture value will neither increase or decrease amount of blurr in this case.
using shorter FL will simply add more visible BG into view which helps the brain to better identify it (back ground) even if it is not in focus.
while a longer focal length will simply reduce the amount of back ground in the image which makes for less detail for the brain to comprehend what it (background) is.
no more no less blur.
FL compression is a different story
rkeller wrote:
... or maybe it does.
Shot wide open at f/1.8, I find this head & torso shot to have a plenty shallow depth-of-field while still providing enough background information to place to subject in context. And the in-focus area is deep enough to cover the whole subject (eyes have pin-point focus while ears are slightly fuzzy in 100% view in Lightroom).
A lot of my paid work is on-location and environmental portraiture. This image is a preliminary proof from a session done with a legal scholar and author to be used for his next book (subject: the 'virtual Silk Road" of internet commerce).
Shooting notes:

--
"If you simplify your English, you are freed from the worst follies of orthodoxy. You cannot speak any of the necessary dialects, and when you make a stupid remark its stupidity will be obvious, even to yourself." - George Orwell "Politics and the English Language"
"Unfortunately, in digital photography a lot of people are seeing pixels, not photographs ... Everyone together now: it's not the pixels. Sing it with me." - Thom Hogan
"If you pick up a camera with any sort of serious intent, you will at least occasionally need to use a flash. Done deal. Lock solid, Take it to the bank." - Joe McNally
--
Thanks,
Paul
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