Single lens reflex camera (1861)

 Single-Lens Reflex Camera (1861)

#Sutton ushers in modern photography with a new camera.

           

Single lens reflex camera 

                  The modern era of photography began in 1861 with the invention and patenting of the world's first single- lens reflex (SLR) camera by photography expert Thomas Sutton (1819-1875). His prototype led to the creation of the first batch of SLR cameras in 1884, with a design that is still in use today. Sutton also assisted James Clerk Maxwell in his successful demonstration of color photography in 1861.

                                 In non-SLR cameras, light enters the viewfinder at a slightly different angle to that at which it enters the lens, so the resulting photo can appear different to the intended composition. in SLR cameras, a mirror is positioned in front of the lens and directs light up into a pentaprism. The light bounces between its edges until it enters the viewfinder with correct orientation, as if the viewer is looking directly through the camera lens. When a photograph is taken, the mirror moves out of the way allowing light to reach the film or, with digital SLRs (DSLRs), the imaging sensor.

                    Now the most popular professional camera format the SLR camera was the culmination of decades of photographic innovations that began with the production of Louis Daguerres daguerrotype and Josef Maximilian Petzval's lens systems, which led to the first mass-produced cameras.Although no record of the first production model exists, the camera was first commercially produced in the mid-1880s By the 1930s it was extremely populat with photographers, allowing an undistorted view of the subject from the correct perspective, DSLRs have all but replaced the traditional SLR, but the principle that Sutton pioneered is still used today.

*With decreasing costs single-lens reflex cameras like this 1911 Adam's Minex became more popular...

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What is a single lens reflex camera?

 A single-lens reflex camera (SLR) is a camera that uses a mirror and prism system to allow the photographer to see exactly what will be captured through the lens.

What is a digital single lens camera?

A digital single-lens reflex camera (DSLR) is a type of SLR that uses a digital sensor to record the images instead of film.

- The main advantages of SLRs and DSLRs are the optical viewfinder, which has no lag and shows the real scene, and the interchangeable lenses, which offer more flexibility and creativity.

- The main disadvantages of SLRs and DSLRs are the size and weight, which make them less portable and discreet, and the mirror mechanism, which makes noise and can cause vibration.

- There are different types of SLRs and DSLRs based on the size of the sensor and the format of the film. The most common ones are crop-sensor and full-frame². Crop-sensor cameras have smaller sensors than full-frame cameras, which means they have a smaller field of view and a higher magnification factor for the same focal length lens. Full-frame cameras have larger sensors that match the size of 35mm film, which means they have a wider field of view and a lower magnification factor for the same focal length lens.

- The choice between crop-sensor and full-frame depends on the budget, the style, and the purpose of the photographer. Crop-sensor cameras are usually cheaper, lighter, and more suitable for wildlife, sports, and macro photography. Full-frame cameras are usually more expensive, heavier, and more suitable for landscape, portrait, and low-light photography.