If you have a specific requirement for photography (for example corporate headshots, banner images for a web redesign or shots for an annual report or company literature), you may only need a day or a half day’s shoot.
For this kind of work, I charge by the day (up to 8 hours including set-up time) or half day (up to 4 hours including set-up time). Rates are inclusive of post-processing (editing, cropping, colour correcting and optimising exposures), and also include the first year’s image hosting on a password-protected web archive. You’ll be able to download images from here in both high resolution and low resolution versions as many times as you like.