[quote name='JustinWaldingerPhoto' date='Feb 17 2010, 12:13 PM' post='347640']
Hey everyone,
I am new to LF and am still understanding when to use certain movements such as front/rear swing, tilt etc. I took this shot yesterday, It is literally my first 4x5 chrome shot on provia 100f at f/32. In the shot I noticed that the pilars (highlighted in white) were not in total focus. After going online to find out the effects that certain movemnts had, I thought that this particular composition would call for a front swing movement to get the desired focus to be perfect. Is this a correct assumption? I would not want to alter the composition as it stands now, and if I were to do a front swing, would I focus on the pilars and stop down or focus on the power plant as I had done in this photo?
thanks in advance.
-j
To make this shot first assess what you have for problems. You have verticle subjects(posts) close that are 20% of the verticle height. In that case tilt is precluded. Next, as you surmised, can you swing. Yes.
Swing is an axis movement so you would focus using the back if possible, on the nearest railing, as near the edge of frame as possible. Next swing for the far end of the railing. Go back and forth using focus for near and swing for far end of railing until both are equally sharp.
Now, hopefully, you have a MM scale on your focus mechanism. If so, note where the focus is set, say, for example 30mm.
Now using your focus aid, hunt the background accross the river for the softest or most out of focus area. Now focus it sharply. Note on the mm scale where you finish with this sharply focused. For example, say 34mm.
For 4x5 multiply the total displacement near to far, by 5. 30mm-34mm=4mm X 5= 20. F20 or F16 2/3 is your minmum F stop for a totally sharp image. Now refocus using the scale to 1/2 way between 30 and 34mm, or 32mm in our example.
So for your image you meter and using the first shutter speed which yields at least F16 2/3, you will use the fastest shutter speed possible and the least amount of diffraction in your image, ie, the sharpest possible!
Rod