Types of Camera – Roll Film

Roll Film Cameras are basically categorized into 4 types depending on their need and working.

  1. Box Camera
  2. Folding Camera
  3. Reflex Camera
  4. Miniature Camera

1. Box Camera

This is the simplest form of camera, with a lens and two viewfinders to view the portrait and landscape mode separately. These camera came with very few shutter and aperture settings.

2. Folding Camera

These were also the most prevail camera of their time because of the quality and portability they offer. In this type of camera the Lens the the film chamber was connected through a bellow. These camera have compound lens and have a no. of aperture and shutter settings. Their negative or image making medium was as large as 20″ x 24″ negatives or as small as a 35mm film. So, this kind of model is being used for making any size of camera, these camera were used for making photos for big prints also.

3. Reflex Camera

This is a TLR camera. As its name defines that Twin Lens Reflex Camera consist of two lens of same focal length, upper one to view from the viewfinder and lower one to capture the image on the film. These camera were remain in trend for long time and gave birth to Candid photography, which was very easy with TLR Camera as subject was not much aware of the camera. These camera were remain in trend for a long time.

This is a SLR camera. As its name defines that Single Lens Reflex Camera in which the same and the only lens is used to view through the optical view finder and to capture the image on negative film. These camera have more customization of Aperture and shutter speed so used for a long time by professional photographers. The above camera was the latest launched negative camera when digital camera era was started. This Camera lens can be changed as per requirements. These Camera have advanced Shutter and aperture system.

4. Miniature Camera

Miniature camera were the cameras in which the 35mm film is used are called miniature because in the roll film era the 35mm film was very small/miniature as compared to other film and plate size. These were also called the rangefinder camera, Small in size and easy to use just point and shoot. These camera were famous among the hobbyists as there were almost no setting to customize just look into the camera, focus and shoot.

Miniature Spy Camera
Its Size is the 2/3rd of a normal human finger.

These are the spy camera, comes under the miniature category too. these were also having the negative to shoot the image and having a very small sized film rolls but were excellent for spying work and this camera has easy access to any security area as well.

This was all about the roll camera types.

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Photography – Introduction

‘Photo’ means “Light” & ‘Graphy’ means “Writing or Drawing”, So, ‘Photography’ means “Writing or Drawing with Light”.

Photography is an art form in which light is a medium through which an artist can paint on canvas of roll film or an electronic sensor. With a light tight box photographs can be taken if this box has a lens, Shutter and a film chamber {used to place a light sensitive material on which image is formed}. These three parts are called the principal parts of a camera.

  • Camera Obscura – dark room with a pin hole, this is the simplest form and the basic principle of a camera and generating image.

Aperture, Shutter & ISO

These three factors are the main form factor of a photograph. In other words the exposure of a photograph is controlled with these three – aperture, shutter & ISO.

Aperture is basically the opening in the lens through which light reaches to the medium(negative roll frame). Aperture is denoted by “f no.” which is denoted by 1:(f no.). eg. we have a 50mm lens with f no. 1.8 then it will be denoted on lens as “1 : 1.8”. The Larger the f no. the smaller the opening, and smaller the f.no. the larger the opening. Aperture at f 1.2 has the larger opening when compared to f 4, 5.6, 8 or greater. This can be better understood with the help of an image.

Aperture is also used to control depth of field

Smaller f no. = shallow depth of field (Blur background)

Larger f no. = sharper depth of field (Sharper background)

Shutter is the mechanism by which the time of light going into the camera is controlled. It is placed just before the Negative film or the Electronic image sensor. Shutter works with two curtains, the first one goes up and then second will follow that depending upon camera shutter speed.

Shutter speed is also used to show the moment of subject in a photo.

Higher the shutter speed = Motion freeze

Lower the shutter speed = Motion live

ISO. After many innovations took place and the negative system was more developed the concept of film speed was also came into trend. The film speed was denoted by ASA or ISO both the terms were used in traditional photography films but now is digital era ISO is used only. ASA or ISO denotes the ability of a film to capture the light faster or slower. Films are available from ISO 50 to ISO 400 in the market. These are used as per requirement of the light where a photograph will be taken or a ISO100 or ISO200 film can be purchased to solve all the purpose and rest will be controlled with shutter speed and aperture.

So these three factors are very important to take a perfect exposure of a photograph or the exposure can be controlled with these free factors. a image will be shown describing the relationship between Aperture, Shutter and ISO.

To shoot a stunning image we are to master this combination of these three basic factors of photography. So Start using the Creative Modes on your Camera Dial which we will explain shortly.

You now able to understand the basic terms used in photography and familiar to their function also, Now we will guide you in near future posts to use the camera to take stunning photographs.

Looking forward for your queries…..

Brief History of Photography – 1

The First Permanent Photograph (Circa, 1826)

View from a window is the above photograph. This above image was the first successful permanent Photograph taken by French inventor Joseph Nicephore Niepce in 1826. This photo was taken with a Camera Obscura focused on a sheet of 20 x 25cm oil-treated bitumen(a petroleum derivative). This above picture was taken in 8 hour exposure, sunlight illuminated the buildings on both sides.

The discovery of Photography was not an overnight miracle, it was the collection of efforts being made from centuries by some eminent people working independently. The history claims that there were some photographer and photographs being made from 4th century B.C. some more prevalent proofs are of 16th and 17th century but the artists couldn’t get those photographs permanent and those techniques documented.

Photography gets completed with two steps, one is taking the image and other is fixing the image on a medium where it can be kept for record. Johann Heinrich Schulze, in 19th century discovered that the silver nitrate darkened upon exposure to light, which results in production of Photogram. These photograms were made by placing objects on paper soaked in silver nitrate and exposed to light. However, this image does not last for long on paper.

It was Aristotle who in 4th Century B.C. observed, that a narrow beam of light entering a dark-room projected an inverted image of an outside object. In 1490 A.D. Leonardo da Vinci realized that it could be used for accurate draught(drawing) and perspective. Principally a group of four man in the 19th century contributed more to the above said basic principals of photography. Those were…

Joseph Nicephone Niepce, a French Physicist, made first photograph on metal in 1826 which was called Heliograph.

Niepce in association with Louis Jacques Mande Daguerre, a French Painter, who invented a method of making direct positive image on silver coated copper plate – known as Dauguerreotype. His method was taken by French Government and made public on 19th August 1839.

Now 19th August is celebrated as World Photography Day.

An English scientist, William Henry Fox Talbot, had also evolved a method of making a negative from which numerous positive copies could be made. He invented he salted paper and Calotype Processes. He had also found out a method of fixing images, but could not announce his work in time.

In 1819, Sir John Herschel discovered the suitability of Hyposulphite of soda (Hypo) as fixing agent of the sensitized paper images.

Photography became more famous and affordable when in 1888, when Goerge Eastman introduced film roll and a simple Kodak box camera. As basic concept was clear and made public now more experiments were carried out and with time camera & lenses get more precise. The Dark room Processes also became more precise, adding depth and sharpness to photographic prints.

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The Journey Begins

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Welcome you on new journey of learning Photography techniques to stand alone in the crowd, You will get very unique content and your queries solved with us.

Meanwhile you will also enjoy some photo tours and along with description of the photo with special emphasize on Photography and story of that particular image content.

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