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(1) Be original, is back at home ... (Homage to Fernando Higueras. Architect)

(1) Be original, is back at home ... (Homage to Fernando Higueras. Architect)



Serve this simple article as a personal tribute to the teacher who repeatedly showed its light in a disinterested way, in the midst of a dark road ...




P arafraseando the teacher and architect, recently deceased Fernando Higueras , on numerous occasions, should be original, returning to the origin ....

S olo this way we can find the bases you can lose between much technology and entertainment, sometimes useless, for better photographing architecture.

Image of the Cave of Covadonga (Cangas de Onis, Asturias, Spain) in 1895, by O. Bellmunt. The original belongs to the collection of Javier Azurmendi. Reproduction

T ranscribo what about architectural photography and optics necessary, tells the " MANUAL PRACTICAL PHOTOGRAPHY" teacher RODOLFO NAMI published in Madrid by Bailly-Bailliere in the year 1912 :

" OBJECTIVES FOR ARCHITECTURE

L to photograph buildings requires rigorously aplanatic objectives, and therefore the objectives symmetrical are preferred for this use.

L to light is not a circumstance that has relevance to this genre of photography , and in turn, can be useful and even indispensable a very wide field and have the Interior objectives of which we later.

E sto in cases in which one can not put more back to embrace or understand the part of building you want photograph.

P ou be necessary in some cases the use of a large angle lens, as indoors.

C hen you want to take positions in architectural motifs elevated parts of the building, then you need (to have reproductions of a certain size) to use a telephoto placed a house across the street, if possible. "

" OBJECTIVES FOR INLAND .

L a main condition to be satisfied by the internal targets is to embrace an angle very high. The focal length of these objectives must be very small.

E sto involves, as we shall see, the problem in perspective, but on the other hand, trying to gather into a single picture all that is in interior de una habitación, no se puede por menos de recurrir a dichos objetivos.

E l objetivo Pantascopico de Busch (figura 17) es uno de los mas apropiados para recurrir en este genero de trabajos.

P ara el mismo fin se prestan también muy bien los objetivos simétricos grandiangulares especiales para arquitectura e interiores que fabrican las casas Goerz , Steinheil, Voigtländer, etc.

na U recently built indoor sound is represented by the objective Pentagonal Rodenstock (Figure 17 a)

E ste useful lens has an aperture of F: 18, and used small diaphragm comes to embrace the huge angle of 130 °, covering a plate size that is three times the diagonal of the same lens focal length.

P ero to such an angle that is quite uniform illumination is necessary when using the lens stopped down, to apply for a special screen clearing, which gives the house with the name "enixantos."

E sta screen replaces the diaphragm or star, once taken in the goals that embrace strong angles. This consists of a thin yellow glass center to the periphery and works both as light yellow filter.

L special internal targets you are especially useful to professional photographers and who is usually very large shooting using angles.

P ero amateur can supply them otherwise.

S Given the fact that the goals Herschel good brand, and especially the lens construction glue, enjoy the important property to cover the entire surface with small apertures much greater than those cover to any opening.

A itself, for example, the objective of Goerz Dagor Herschel F: 6.8 any opening that covers 9x12cm size (this is that it gives a clear image on a surface 9x12 cm), when this hard diaphragms, covers at least 13x 18 cm. It happens because of the diagonal diagonal 15 to 22, and the angle increases significantly.

D and so just take a nice short Herschel focus, aimed at small plate size (eg, a target 12cm de foco que cubre 9x12cm) y adaptarlo a otro aparato de exposición que permita el empleo de la máxima dimensión de placa que dicho objetivo diafragmado al último limite puede cubrir, para obtener casi siempre de un objetivo ordinario completamente o poco menos los resultados que pueda dar un objetivo grandiangular especial para interiores y arquitectura."

Un bonito grabado de la epoca, de una optica totalmente simetrica especializada para la arquitectura

T al como nos relata en 1912 el conocido author, diaphragm can greatly increase

the viewing angle so sharp, as the possibility of shifting our perspective correction film .

"C omo can apply this to the current optical reflex camera work?

D iafragmando can strongly increase the diameter of clear image our optics and optical scrolling cases, eliminating the mechanical limitations of these, we can make a more correct perspective.

Oviedo (Asturias, Spain) Image by around 1890 Bellmunt . The original belongs to the collection of Javier Azurmendi. Reproduction

E s true that the diaphragm strongly the phenomenon of diffraction decreases the quality of resolution of this but, in turn, increase the average resolution in all areas of the image and correction possibilities for architecture to film, with a digital sensor the problem specifies the microlenses on the angle of incidence of light on them, could increase ... with the improvement, and far from that recommended by the manufacturer of the lens will be necessary to evaluate in each particular system.

Javier Azurmendi

April 2008