Thursday, August 03, 2017

tested filter adapter (Bradford)

Tested my custom solar filter adapter outside. Before the tornadoes arrive.

Ran into an interference issue but I was using the tripod wrong: using the tilt axis for elevation. When I remounted the hex plate, I was able to mount the filter.

custom solar filter box on camera, from side

Aimed at the Sun and turned on Live View. Ahoy!

custom solar filter box on camera, from rear

Focusing will be a challenge, I realised. But I was intrigued to see the autofocus turn the whole adapter box! Wow. Wondered if the converse would work!? Turned off the AF mode and then rotated the box. The focus changed. Ha ha! I was not expecting that.

partly cloudy Sun through custom filter box

Canon 40D, 18-55 lens at 55, manually focused, f/5.6, 1/250, ISO 100, daylight WB, RAW, DPP.

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