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DPChallenge Forums >> Hardware and Software >> canon 50mm f/1.4 vs f/1.8
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06/04/2005 08:12:09 AM · #1
here's what I heard

the f/1.4 have a better construction
the f/1.4 is faster (pretty obvious huh!)
both lenses are soft wide open
the f/1.8 suffer from corner softness (but the crops factor help for that)
If you use both lenses at say f/2.8 you can't tell the difference in the image.

Is that accurate?
06/04/2005 08:14:02 AM · #2
except your wallet will be much lighter with the f/1.4

here is a shot i took with my 1.8 **Large File**

//superbasspond.com/turnakit/SLR/500001.JPG

no post processing except RAW -> JPEG

*edit added photo

Message edited by author 2005-06-04 08:39:23.
06/04/2005 08:26:02 AM · #3
Well don´t forget that the USM motor allows full time manual focus while in autofocus mode and it´s almost completely silent compared to the 1.8.

Also since you have 8 aperture blade diaphragm in the 1.4 vs. 5 blades in the 1.8 the bokeh looks much nicer with the 1.4. I personally spent the extra money for the 1.4 mainly because of bokeh and the USM motor and I think it was worth the money but that´s something you alone can decide. I had a 50mm 1.8 mkI and it was great but I don´t miss it at all.
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