Studio Hire Walsall |SAM Photography

SAM photography is a Walsall based photographic studio specialising in both professional and commercial photography including business profiles. Our fully equipped drive in studio is available for hire including white room and green screen facilities together with video editing and photo retouching.

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Wide Angle Lenses

The specifications for a given lens might include the minimum and maximum apertures. These refer to the maximum and minimum f-numbers the lens can be set at to achieve, respectively, the minimum and maximum input of light. For example, the Canon EF 70-200mm lens has a maximum aperture of f/2.8 and a minimum aperture of f/32. This may seem counterintuitive since the maximum aperture has a smaller number while the minimum aperture has a larger number, but makes sense since the smaller number corresponds to a physically larger aperture opening. This can be remembered by thinking of the f/numbers as fractions and recalling that 1/2.8 is greater than 1/32.

The maximum aperture tends to be of most interest (makes it easier to shoot under dim lighting conditions, or at fast shutter speeds because the lens lets more light through to the film or CCD) and is usually included when describing a lens (e.g., 100-400mm f/5.6, 70-200mm f/2.8).

The minimum aperture is useful for time-lapse pictures shot on film (it places an upper limit on the exposure time for a given lighting condition) and maximum depth of field.

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Contact us on:

Sam Photography
Unit B | Green Lane | Walsall | West Midlands | WS2 8LJ
Telephone: 01922 611 170
Sallie: 07795 261 054 email:
Andy: 07932 138 937 email:

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