xScope by Iconfactory is a software tool I use on a daily basis at the studio. It is a gem that others might disregard but I feel is essential in my workflow. Xcope includes various tools that float on your desktop window. One of the key features are the guides. I use the guides to make sure things are squared, leveled, equidistant and parallel when positioning a shot. Above are three screen grabs floating xScope guides on my Capture One screen. The first two show the product off centered, indicated by the pixel numbers between the guides. The third shows the product being centered, proven by the equal pixel numbers.
I also like the ruler. Often, I have to match the position of a previous shot I did. I use the ruler as a free-flowing glorified guide since it can be rotated in any angle and placed anywhere on the screen. Below are two screen grabs to diagram my use. Let’s say the first image is a final shot. Next on the shot list will be the same product but rotated 90 degrees. The best way to match angles is to place the ruler on one side of the first image and then rotate the product accordingly to match the ruler for the second image. Make sure you do not move the ruler, instead move the product little by little until the side lines up with the ruler. The second screen grab below not only shows the ruler matching the side angle but I also brought back the guides to make sure it is centered. I like how all the tools can be used in conjunction with each other.