photo:sigma14mm
Sigma 14mm f/1.8 DG HSM Art full frame lens
introduction
14mm f/1.8 ultra wide full frame lens in various mounts
announced Feb 2017, available May 2017
Sigma can optionally fit a rear mounted gel filter holder (FHR-11 filter holder) for around $US80
compared with the
Samyang 14mm f/2.4 SP the Sigma 14mm f/1.8 is bigger, heavier, more expensive and with more much coma and astigmatism below f/4 but is weathersealed, better build quality, has less vignetting and less distortion so better for lowlight photojournalism, moonlit scenes at 2 sec exposures, timelapse imagery or video
specs
14mm f/1.8 ultra wide full frame lens
weather resistant
16 elements in 11 groups
9 rounded blades
no filter
95mm diameter x 126mm long
1.1kg! (plus MC-11 adapter if used on Sony E-mount cameras)
$US1599
reviews
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lots of vignetting wide open but the gradient is soft and coma is reasonably well controlled but bat wing shaped at the edges
does have lens flare issues with bright light sources such as a full moon
a reasonable choice for ultra wide angle astrophotography or aurora shots where the additional aperture would allow shorter exposure times
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much better star shapes than the Sigma 20mm and 24mm f/1.4 lenses
not as sharp in corners as the manual focus only smaller, lighter, cheaper (half the price), Rokinon 14mm f/2.4
the manual focus Rokinon 14mm f/2.8 is far cheaper, smaller, lighter but does have much more vignetting, much poorer build quality and optical consistency between lenses, and over time with vibrations such as driving on gravel roads, tends to be subject to lens de-centering causing softness of image quality
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photo/sigma14mm.txt · Last modified: 2020/06/27 11:25 by gary1