| (It must be remembered however that satellite | | | | |
| imagery rarely competes with Oblique Aerial | | | | Easier manipulation of images for both |
| Photography where and angle is required) For | | | | archiving in Aerial Photographic Libraries |
| many years aerial photographers like their | | | | and e-mailing. |
| land-based colleagues have relied on film and | | | | |
| it has only been in the last few years that | | | | Disadvantages of digital over film: - |
| the digital equipment has been able to rival | | | | |
| film. This is still not true for large prints | | | | Limitation in size of printable image |
| where medium format film cameras provide the | | | | depending on size of sensor. Most semi-pro |
| benchmark in perfect conditions such as | | | | DSLR's do not have full frame sensors, |
| display Construction Photography. | | | | therefore smaller than 35mm. Professional |
| | | | DSLR cameras do have full frame sensors but |
| The main advantages digital has over film: - | | | | these are roughly the equivalent of a 35mm |
| | | | film camera and no larger. |
| Greater flexibility - allows photography in | | | | |
| poorer condition which would not normally be | | | | Meduim format digital cameras are not usually |
| possible, e.g. Photography in low light - | | | | appropriate for use in Aircraft due to the |
| ISO's up to and above 1600. | | | | restriction on ISO settings and the very high |
| | | | cost. |
| Immediate data recall and review while on | | | | |
| location. | | | | Possible to loose data inadvertently. |
| | | | |
| No changing film. | | | | Camera battery power is paramount. |
| | | | |
| High capacity memory cards allow hundreds of | | | | Need for constant hardware and software |
| images on one card (depending on image size) | | | | upgrades. |
| - especially important where a large number | | | | |
| of images are to be taken in a short space of | | | | For many aerial photographers the move to |
| time, such as Event Aerial Photography. | | | | digital equipment has not only provided |
| | | | greater flexibility but has also reduced |
| Image stabilization on lenses. | | | | processing costs as many clients will not |
| | | | require prints but only the digital files on |
| Immediate image transfer from the office to | | | | a disc. Although there will be a large |
| clients. | | | | initial outlay for the equipment the savings |
| | | | over time on the lab processing fees should |
| Easier archiving of electronic data with | | | | outweigh these. |
| instant recall. | | | | |