Experimentation with Lenses; LBR LO2.2

Learning Objective 2

Experimentation with Lenses.

2.2 Use lens-based equipment for required purposes.

Above is a test sheets for working out the timing for development of the photograph. To take this image we used a medium format camera.

Medium format has traditionally referred to a film format in still photography and the related cameras and equipment that use that film. Generally, the term applies to film and digital cameras that record images on media larger than 24 by 36 mm (full-frame) (used in 35 mm photography), but smaller than 4 by 5 inches (which is considered to be large-format photography).

The top of the test sheet 25 seconds then it goes down 20 seconds, 15 seconds 10 seconds ending with 5 seconds. I then used this test sheet to work out how long I needed to exposure my photo paper to the light and on this test I decided that an exposure time of around 7 seconds would be perfect for the development of this negative. 

This is the result from exposing my photo paper for 7 seconds. This image was taken and then development in the dark room by me.

However on using the twin lenses camera we did encounter a few problems when it came to the development of the images as the photo paper unfortunately was fogged meaning that it was exposed to natural light photo paper can only be exposed to red light without being fogged, but when starting the development process me and my work partner Aylen we found that the paper was unsuitable to be used.

Below are the results of the fogged paper when trying several times to complete a test sheet.

I also used my DSLR to take photos to get a feel for the camera and to just mess around with the settings so that I can confidently go out on shoot using my 35mm lens.

This was taken on a test shoot day down in Westminster, London.

Here are few photos from my test day. I was aiming for correct exposure throughout the shoot, meaning I was getting the correct amount of light for the sensor. Again with my 35mm lens.

Digital single-lens reflex cameras (also named digital SLR or DSLR) are digital cameras combining the parts of a single-lens reflex camera (SLR) and a digital camera back, replacing the photographic film. The reflex design scheme is the primary difference between a DSLR and other digital cameras. In the reflex design scheme, light travels through a single lens and a mirror is used to reflect a portion of that light through the view finder - hence the name Single Lens Reflex. The image that is seen through the viewfinder is also the image that is captured by the camera's sensor. Many lenses are mountable, "diaphragm-and-meter-compatible", on modern DSLRs and on older film SLRs that use the same lens mount. However, when lenses designed for 35 mm film or equivalently sized digital image sensors are used on DSLRs with smaller sized sensors, the image is effectively cropped and the lens appears to have a longer focal length than its stated focal length. Most DSLR manufacturers have introduced lines of lenses with image circles optimized for the smaller sensors and focal lengths equivalent to those generally offered for existing 35 mm mount DSLRs, mostly in the wide angle range. These lenses tend not to be completely compatible with full frame sensors or 35 mm film because of the smaller imaging circle and, with some Canon EF-S lenses, interfere with the reflex mirrors on full-frame bodies.