 Bernard |
Nikon 50mm f1.8, or f1.4 for lowlight capture I'm currently looking into purchasing the f1.8,or f1.4 for low light capture, I own a Sigma f2.8 17-50mm. I realise the smaller f-stop number(f1.8) translates to a larger aperture opening, any guidance would greatly be appreciated. thanks in advance Bernard
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Alan N. Marcus |
Hi Bernard, You are asking for advice regarding which is better, f/1.4 vs.f/1.8. The f/1.8 is only just ½ f/stop slower, not much difference. Likely the f/1.8 will be just a smidgen sharper at maximum aperture (this is not a certainty) only because the f/1.4 requires a steeper curve applied at the edges of its slightly larger diameter glass. i.e. the f/1/4 is harder to make. Likely this is a decision that will be made by your pocket book. I have a Nikon 58mm f/1.4 and I love it. Best of luck,
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Bernard |
Thanks Alan Your response on sharpness is very helpful relating to my future purchase. In regards to the 1/2 f/stop difference, in your opinion, would that make a large or small difference in Low light capture? weddings, banquets, ect.. Thank you
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- Gregory LaGrange Contact Gregory LaGrange Gregory LaGrange's Gallery |
Actually, if the sigma is a constant 2.8, I would just use that. Since it's such a short focal length. But 1/2 a stop is a small difference. If you're too blurry at 1.8, 1.4 isn't going to help much.
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Jon Close |
The 2/3 stop difference between f/1.8 and f/1.4 may make the difference between blurry from camera or subject modtion (though depth of field will be shallower). Suppose shooting w/o flash with the Sigma 18-50 f/2.8 and you're getting an exposure of f/2.8 and 1/15 second. At f/1.8 you could get 1/40 sec., while at f/1.4 you could shoot at 1/60.
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- Gregory LaGrange Contact Gregory LaGrange Gregory LaGrange's Gallery |
But practically any place that has electricity has enough light for 2.8 Unless this is case of only wanting low iso.
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Bernard |
Thanks Greg, Jon The responses receive are really useful, at times I've managed a sharp image at 1/40 sec. but to be safe in this hopefully life time investment I'm going for the f/1.4, I'll be ready for next years NFL Rams championship after party.
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Bernard |
Alan, Greg, Jon I purchased the Nikon 50mm f/1.4, it is levels above the Sigma f/2.8,.
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- Gregory LaGrange Contact Gregory LaGrange Gregory LaGrange's Gallery |
Whatever makes you happy.
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