Hi . I have a problem I don't fully understand, at present . Mounted my 5D on a fairly sustantial tripod this morning to take some frosty foliage pictures. Lens a 24-105 'L', remote release . Exposures typically 1/3rd sec, f16/22 . Didn't lock mirror. Every picture on Lightroom magnification show movement, some a tiny amount, many quite a lot . ??? .
