50 vs 85 1.8

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Aldone Junior Member • Posts: 32
50 vs 85 1.8

I am not 100% sure how this works, so could someone explain which of these two focal lengths (50 or 85) will produce the most shallow depth of field, assuming the same framing? Of course the depth of field is shallower with the 85 if the two are focused at the same distance, but if I step back to achieve the same framing of the subject (ex. A person) the depth of field increases. Which of the two factors, distance and focal length has the greater effect, or do they balance out?

I have a 50, and I’m debating weather to get an 85 for some portraits.

Thanks for the info

aldone

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