Photography Honor

Vocational Activities

Requirements

1. Explain the principles of how a camera is built, what the camera lens does, the effect of light on the film, and the action of the developers.

   Answer: The lens focuses the light onto the sensor or film, creating an inverted image. The light sensitizes the photosensitive emulsion (silver halides), causing latent chemical reactions. The chemical developers (in film) or electronic processing (digital) make the image visible, fixing it permanently. — A camera has a dark box, a lens, a shutter, and a sensor/film. Light sensitizes the silver in analog film. In digital, CMOS/CCD photosensors convert photons into electrical signals. Chemical developers include hydroquinone, phenidone, and fixer. It was invented by Niépce and Daguerre in 1820-1830. Today smartphones replace traditional cameras for most users.

2. What does the "speed" of the film mean? What do ASA/ISO mean?

   Answer: The 'speed' of the film is its sensitivity to light. ASA (American Standards Association) and ISO (International Organization for Standardization) are equivalent standards that measure this sensitivity. Films with a low ISO (50-100) need a lot of light; films with a high ISO (800-3200) work in low light but generate more graininess. — ISO replaced ASA in 1974 (equivalent numbers). Sensitivity doubles with each doubling of ISO: 100→200→400→800. In digital, ISO affects the electronic amplification of the sensor. A high ISO introduces visual noise. ISO 100-200 is ideal for strong sunlight; ISO 1600+ for night photos. The photographer chooses by balancing light, aperture, and shutter speed.

3. How are the shutter speed, the lens aperture, and the film speed interconnected?

   Answer: The three form the exposure triangle. Shutter speed controls the time of light (1/1000s freezes; 1s blurs). Aperture (f-stop) controls the amount of light and the depth of field. ISO controls the sensitivity of the sensor. Increasing one allows the others to be reduced while keeping the same correct final exposure. — Each stop doubles or halves the light. f/2.8 lets in more light than f/16. A fast shutter freezes motion; a slow one captures trails. A high ISO reduces the need for light but adds noise. The camera's automatic modes make these choices. Professional photographers adjust them manually for specific artistic effects.

4. Present the main uses of photography.

   Answer: The main uses of photography: 1) Historical and journalistic documentation (recording facts and news); 2) Visual communication, advertising, and marketing; 3) Artistic expression (photography as art); 4) Personal and family records (trips, birthdays, events, weddings); 5) Scientific applications (microscopy, astronomy, medicine, biology); 6) Evidence in forensic investigations, expert examination, and security; 7) Social networks and digital communication (Instagram, TikTok); 8) E-commerce and product catalogs. — Photography has revolutionized human communication since 1839. Today, smartphones produce trillions of photos annually. Pulitzer Prize-winning photojournalism documents history. NASA uses cosmic images. Medicine relies on X-rays, MRIs, ultrasounds. At camporees, photos preserve memories and generate shareable content for Adventist youth social networks.

5. Explain what "Painting with Light" means.

   Answer: It is the essence of photography: light creates the image and the photographer controls how it reaches the sensor to 'paint' the scene. The expression also refers to a creative technique where, in a long exposure in the dark, moving light sources (a flashlight, a lighter) record luminous trails, forming drawings in the final image. — The word 'photography' comes from the Greek (photo=light, graphia=writing). Light painting as an artistic technique uses a camera with the shutter open for several seconds, in a dark environment. LEDs or lights are moved to create shapes. Artists such as Picasso experimented with this technique. At modern camporees, night photos with light painting are a hit among creative Pathfinders.

6. Choose photos on paper or slide that illustrate at least eight of the following techniques. Use other photos to make a comparison:
   • Framing
   • White balance
   • Direction of light - front, backlighting, side
   • Focus and depth of field
   • Rule of thirds
   • Angle - eye level, high and low
   • Horizon level
   • Focal length
   • Use of guide lines
   • Quality of light - shadow, sunlight, time of day
   • Correct exposure - underexposure, overexposure
   • Use of the flash - distant objects, and objects that reflect light

   Answer: Oito técnicas fotográficas que as fotos devem ilustrar: (1) Enquadramento: escolha consciente do que entra e do que fica de fora da imagem; (2) Regra dos terços: divida o quadro em 9 partes e posicione os elementos principais sobre as linhas ou seus cruzamentos; (3) Ângulos/ponto de vista: nível dos olhos, plongée (de cima) ou contra-plongée (de baixo); (4) Profundidade de campo: foco seletivo (fundo desfocado) ou tudo nítido; (5) Linhas-guia: linhas que conduzem o olhar até o ponto de interesse; (6) Qualidade da luz: luz dura ao meio-dia versus luz suave da hora dourada (início da manhã/fim da tarde); (7) Congelamento de movimento: velocidade alta do obturador que "para" a ação (gota, salto, esporte); (8) Panning: seguir o objeto com velocidade baixa, deixando o fundo arrastado e o motivo nítido para passar sensação de velocidade. — Composition is fundamental. The rule of thirds avoids banal centering. Leading lines can be roads, rivers, shadows. The golden hour produces warm light; the blue hour (dusk) has cool tones. Flash kills the natural depth of field. Professionals combine various techniques. At camporees, practicing photography in nature develops an artistic eye.

7. Explain how to do night photography and present at least 3 photographs using this technique.

   Answer: Use a tripod to avoid shake during a long exposure. Set a high ISO (800-3200), a wide aperture (f/2.8 or f/4), and a slow speed (1-30s). Use a timer or remote shutter release. Focus manually on a luminous point. For stars, the rule of 500: 500/focal length = maximum seconds before blur from the Earth's rotation. — Night photography challenges exposure. A tripod is mandatory. A full moon illuminates landscapes; a new moon is best for stars. Cities have 'light pollution' that washes out the stars. Astrophotography requires a dark location. Apps like PhotoPills plan the shots. At camporees in rural areas, the starry sky offers unique opportunities for memorable shots.

8. Do one of the alternatives:
   • Explain how black-and-white film is developed into a negative, and then onto paper
   • Develop and print eight of your own photos, explaining each step.
   • Prepare a darkroom and explain step by step its design and construction.
   • Build a pinhole camera from an aluminum can or a shoebox and "photograph" at least 3 objects with it. Explain how the camera works and develop the photographs.

   Answer: B&W film: develop with developer (D-76) for 7-10 min, stop bath (water with acid), fixer (5 min), washing (15 min), and drying. Pinhole camera: a black box (a can, a shoebox), a small hole (0.3-0.5mm) made with a needle, photosensitive paper inside. Expose for 30s-30min depending on the light. Develop like normal film. — Manual development requires a darkroom. Kodak's D-76 is a classic. The pinhole was the precursor to the modern camera. It has no lens — the image is formed by a ray of light that passes through the hole. The exposure time varies drastically. At camporees with science themes, pinhole workshops fascinate young people. Pinhole images have a unique aesthetic, without lens distortion.

9. Tell a story using photography techniques with up to 10 photos.

   Answer: Photo-narrative follows cinematographic principles. The beginning presents the setting and the character. The middle develops the conflict or action. The end resolves or concludes. Each photo should add meaning. Photojournalism (Sebastião Salgado) and photo essays (Henri Cartier-Bresson) are references. At camporees, recording activities in sequence creates a memorable album that tells the story of the club.

10. Hold a photographic exhibition using color and black-and-white photos.

    Answer: You organize an exhibition with at least 15 photos, mixing color ones (which show realism, vibrancy) and black-and-white ones (which highlight form, texture, contrast). Set it up with simple frames, group by theme or technique, and add short captions. Present it at the club, school, or church with a formal invitation and an organized visiting time. — Black and white forces the eye to look at form and light, without the distraction of color; Ansel Adams is a master of black-and-white photography; colors enhance emotion according to Annie Leibovitz; mixing the two techniques is standard in modern galleries such as the ICP in New York; an exhibition is the final form of photographic communication taught in Brazilian schools and still in force today.