Preparing to shoot: before shooting to possibly remove the temporary structure, random objects and people that are visible in the frame. Using the scale: the detailed and sometimes anchor photography should do so, so that you can on a snapshot, if necessary to carry out geometrical measurements. To this end, the frame should include any unit length, for example, a ruler or meter graduations. Even better, if it is a special scale bar. As is known, the basic rule of scale survey is parallel to the emulsion and the surface the object being photographed. In applying the scale bar is the rule must be observed without fail. The numbering of the subject is: to simplify working with images in the future when the subject is close to them necessary to have a number plate.
As possible is advisable to have several sets of numbers, different sizes and methods of attachment. One set of numbers can be written on painted steel plates (Black numbers on white background), the possibility of mounting pegs for sticking in the ground or a layer of fire debris. If you add a set of flat magnet, it will consolidate facilities, if necessary, to steel structures and objects. The second set of rooms (with smaller numbers) are made on the plates out of cardboard or plastic that are sealed in plastic. It is useful to consider the system of fixing these numbers to inclined and vertical surfaces. Isolation of a subject: if the subject is poorly visible in the background of the burned structures and objects, fire debris, it can try to.