As you'd expect considering its supposed professional focus, the LP2475w's buttons are plainly visible and labelled at the monitor's front. It's a pity HP didn't make the OSD and button combination similar to the brilliant context-sensitive system used on its DreamColor LP2480zx (review coming soon), but then that's a monitor demanding close to £2,000.
Compared to implementations on monitors available to us mere mortals, the LP2475w's buttons and menus are very usable. Between the power button and controls is a tiny green (orange in stand-by) power indicator. Despite its size it's very bright, but though it can't be dimmed it can be turned off altogether.
Control buttons are divided into two sets separated by a small section of bezel, one dedicated to input selection and the other housing the menu controls and shortcuts. The input set consists of 'scan' and 'Quick Select'; the former scanning for active inputs, the latter allowing you to select one manually from a list or switch to the next active one depending on how it's set up in the dedicated 'Video Input' menu.
Unfortunately, the rest of the controls aren't quite as intuitive. From left to right the four buttons are menu/select, minus/auto, plus/reset and PiP/PoP (Picture-In-Picture/Picture-Outside-Picture). Our first objection is to the usefulness of the shortcuts. Having a dedicated 'auto' shortcut on a display that doesn't even feature a VGA input seems unnecessary, while a shortcut to a full factory reset is just completely illogical. Brightness or preset settings would have made far more sense here.
Our other complaint concerns menu navigation. With PiP/PoP being limited to analogue non-VGA sources its uses in this increasingly digital-only world are limited. Not to say that it shouldn't have had a dedicated button, but at least HP could have given it a dual function to act as a back/previous button in the OSD.
As is, in a system similar to the Dell 2408WFP, you're only left with one function button in addition to the minus/down and plus/up buttons to navigate with, which ends up being unnecessarily awkward. Aside from this quibble, though, menus are clear and logically laid out, if a bit industrial compared to the more colourful efforts seen on some rival manufacturers' displays. The amount of information given is quite extensive, even going so far as to include the number of backlight hours.