Does anyone use the Horseman Angle-Finder II? I wish I could use it to help mak e the settings with super wide-angles such as the 65 and 47mm. With these lenses the slightest slope traduces in converging verticals. It is also difficult to w ork on film - lens parallelism, especially in low light conditions. Do you think this oil damped device can help? Is it more precise than a spirit level?
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