Broadcast camera lenses at the Olympics can cost as much as a Lamborghini

Re:Broadcast camera lenses at the Olympics can cost as much ... by mark_element on Tuesday February 20, 2018 @08:06PM (#16425923)

A note, why do they use such small sensors (11mm) rather than the large sensors in full-frame DSLRs (42 mm)?

Didn't quite get that constraint as being absolutely necessary.

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Re:Broadcast camera lenses at the Olympics can cost as much ... by mozumder on Wednesday February 21, 2018 @12:15AM (#16427030)

Smaller sensors mean bigger depth-of-field.

Shallow depth-of-field is incredibly distracting for video and difficult to work with. Everything is out of focus. It's mostly a photography/art thing to isolate your subject.

You can see how sports program would want everything to be in focus, instead of just one player. That would look ridiculous.

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Re:Broadcast camera lenses at the Olympics can cost as much ... by alfanick on Wednesday February 21, 2018 @01:07AM (#16427237)

this + Smaller sensor means larger effective focal length, which tends to smaller/cheaper lenses.

86x zoom for 35mm sensor would be much larger (so big that it would be impractical), heavier and much pricier than $200k.

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Re:Broadcast camera lenses at the Olympics can cost as much ... by wmf on Tuesday February 20, 2018 @08:12PM (#16425957)

Mostly for legacy compatibility, but the lenses would need to be even larger to cover a larger sensor.

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