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Originally Posted by diskojoe
what i am really looking for is would it be worth my time to spend the extra money for the 50mm f1.4 that will auto focus or would it be easy to use the manual 85mm f1.4 that costs less.
i have not really had much success with using my camera in manual mode so im hesitant to purchase a lens that can only be used in manual.
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I think you might be conflating manual focus and manual mode. You can use a manual focus lens in any camera mode, not solely manual. Having said that, I wouldn't recommend a manual focus lens for people photography because subject movement, changing facial expressions, etc. can present challenges.
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also would anyone think there is much of a difference between f1.4 and f1.8. the f1.8 is a third of the price of the f1.4.
also the flickr link you posted for devyn was really hot. good stuff there. very sexy.
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The most obvious difference is that 1.4 is a half stop faster than 1.8. In addition, a 50mm f/1.4 lens has been better bokeh than its f/1.8 counterpart because the former has eight aperture blades and the latter five. Those eight blades more closely resemble a circle, resulting in softer bokeh.
I had to make a similar decision a couple of years ago. I had the Canon 50 f/1.8 and was considering upgrading to the f/1.4 version. Now, I can't speak for the lenses you're looking at buying, but I found the Canon f/1.4 to be worth the price: faster, better bokeh, less flare, better build quality, faster and more accurate auto-focus, etc.