Having been through Dykinga's new book he seems to advocate rear tilt as the mec hanism to get sharpness for near and far objects. I have been using lens tilt to achieve the same effect. Thinking about it - if I use lens tilt then I need a l arger image circle to not get vignetting but using rear tilt doesnt have the sam e restrictions. Is that correct ? My wideangle lens is a 65mm F8 SA which only j ust covers 5X4 and this may be a better way of making adjustments. I was conside ring changing my monorail for a field camera with no rear movements and this may make me think again.