Canon XF305 백서 - 페이지 9

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SELECTING YOUR GEAR

Side by Side Rig vs Beam-Splitter Rig

Interaxial separation is an important factor when

shooting S3D so therefore the width of your two

cameras will determine the minimum interaxial

separation in a side by side rig. The XF105 is 121mm

(4.8") wide so therefore 121mm is also the minimum

interaxial distance when two of them are mounted in a

simple side by side rig. The XF305 is even wider at

153mm (6".) Both of these interaxial distances are far too

wide for any application other than hyper-stereo shots

of landscapes, mountain ranges, helicopter shots, etc.

Beamsplitter rigs allow for great variation in interaxial distance

XF300/305 Whitepaper

Tim Dashwood

In order to shoot subjects in close range (within 15 or 20 feet)

you will require a beamsplitter rig.

Beam-splitters use a 50/50 or 60/40 mirror (similar to

teleprompter glass) that allows one camera to shoot through the

glass and then other to shoot the re ection. The interaxial can

be brought down to as little as 0mm (2D) with beamsplitter rigs.

There are over 20 diﬀerent beamsplitter rigs on the market

ranging from $2500 USD to $500,000. However, many other

types of disparity can be introduced when shooting through the

glass (polarization eﬀect, dust contamination, color cast, etc.)

Side by Side Rig

Stereoscopic 3D