fotka #24 / 241, počet zobrazení : 361x


..:: komentáre od návštevníkov ::..
04. 08. 2012  11:20:24Ewen3.5 or 2.8, or more 3.5 or 2.8, or more correctly f/3.5 and f/2.8 reletas to the size of the hole that lets the light in the lens (the aperture). With a bigger aperture (smaller f-number, eg f/1.8) you can shoot at the same shutter speed in less light, or as you say, have a shorter depth of field.However, remember that all lenses perform best a couple of stops up from wide open anyway so by having an f/1.8 lens it means that it will take sharper shots at f3.5 and above.Cheers, Rob.

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..:: EXIF data ::..
IMGP3415.jpg
Model
PENTAX K10D
Exposure time
1/80
FNumber
f/4.0
Exposure bias
0
ISO rating
400
Focal length
50 mm
Focal length (on 35mm film)
N/A mm
Created
27. 06. 2008, 20:12:58


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