Sigma BF: Teardown provides look inside tiny full-frame camera for minimalists
The Sigma BF ($2,199 on Amazon) differs from competitors such as the Panasonic Lumix S9 primarily due to its minimalist aluminum unibody housing. With a large touchscreen, touch-sensitive buttons and a small OLED secondary display that shows settings, the Sigma BF's operation and design are unlike any other camera on the market.
The company Kolari, which specializes in infrared conversions, shows what the camera's inner workings look like in the teardown video embedded below. While the chassis is milled from a block of aluminum, there is a rubber cover on the bottom, under which a total of ten screws can be found. Once all these screws have been loosened and a cable disconnected, the rear display can be removed.
This is glued into the body in a similar way to a smartphone, but if the adhesive is heated with a hot air dryer, the screen can be removed without any major problems. To disassemble the camera further, numerous small boards, ribbon cables and screws have to be removed before the mainboard and ultimately the full-frame sensor can be taken out of the housing.
This is not particularly complicated, but it is time-consuming. However, in order to repair the camera by yourself, Sigma would have to offer spare parts, which are not currently sold directly to end users. The multi-layered construction of the interior shows that Sigma has used every millimeter in the housing effectively.
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