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A + B camera plate

R100 with a 70-200 on a cheese plate, the Muse co-aimed as a B-cam, iPhone monitoring it.

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A + B camera plate

Parts list

Canon EF 70-200mm f/2.8L USM$599 · 1.31 kg
Canon EF-EOS R adapter$99.99 · 110 g
Canon EOS R100$299 · 356 g
SmallRig 1598 cheese plate≈$14.99 · 70 g
SmallRig monitor mount (ARRI pins)$29.99 · 60 g
Pocket 3 adapter base≈$19.99 · 30 g
Xtra Muse Pocket Camera$329 · 180 g
NEEWER ND64/PL filter— · 3 g
L-bracket, 1/4" screw ⇄ 1/4" thread≈$12 · 42 g
SmallRig 2772 side handle≈$29.99 · 120 g
SmallRig 3873 magic arm$29.99 · 88 g
SmallRig 5155 MagSafe plate$29.99 · 41 g
iPhone 16 Pro$999 · 199 g
DJI Mic Mini receiver$99 · 18 g
SmallRig 5530 power bank holder≈$24.99 · 55 g
Anker 737 Power Bank$109.99 · 630 g
Total≈$2,727 · 3.31 kg

Every part snaps together on real mounts in the builder, so you can swap the camera, lens or support and watch the weight, balance and price update live.