The photograph of this city that everyone arrives wanting has the same ingredients: red tiles, a dome, spires, and light slanting across all of it. Two viewpoints produce it, and they argue quietly with each other. The tower puts you above everything, high and central, for a ticket and a queue. The rooftop terrace puts you level with the tiles, close to the dome, usually for the price of a coffee. Both shots exist in every portfolio; the difference is what the light does in each one, and what the hour costs.

The comparison at a glance

The table reads evenly, which is honest: the two viewpoints are not really competing for the same frame. They compete for the same hour of light, and only one of them serves drinks during it.

Cost

The tower ticket is modest and fixed, and it buys certainty: a platform, a railing, a guaranteed angle. The terrace spends the same money differently, converting the ticket into a table with a two-hour lease, during which the light changes and the camera stays out. Over a week the terrace route costs more in coffee than the tower does in tickets, and returns more frames per euro, with one caveat: at the famous addresses the minimum spend climbs steeply in the evening, and the window table with the dome view is booked like any other scarce seat.

One cost line hides in the terrace column and should be counted honestly: the evening minimum. At the famous addresses the dome-view tables carry a spend requirement that turns a coffee budget into a dinner budget, and in the busy months those tables are sold a season ahead. The tower, by contrast, sells its light to everyone at the same fixed price, which is less romantic and more democratic, and on a first visit that flat certainty is worth something.

Time and the light's own schedule

Light is the strict criterion, and it splits the day between the two. Morning belongs to the tower: the sun climbs the east faces, the air is still clear from the night, and the long view toward the hills holds no haze until mid-morning. Evening belongs to the terraces. As the sun drops, the tiled roofs go from red to copper, the dome catches the last direct light for perhaps ten minutes, and the windows below start answering back. A photographer can hold both appointments in one day, tower at eight, terrace at seven, and many do; the schedule is the whole craft here, as the season notes show at the year scale the way this table shows it at the hour scale.

The terrace has one more light advantage that never reaches the table: direction of travel. At the tower the photographer stands still and the light moves; on a west-facing terrace the same ten minutes can be spent walking the rail, changing the relationship between dome, spire and sun with every few metres. The tower gives one frame perfectly. The terrace gives twenty frames imperfectly, and the portfolio usually prefers the twenty.

Who each viewpoint fits

• The tower fits first visits, map-lovers, and anyone who wants the establishing shot without negotiation.
• The terrace fits evening work, long sessions, and photographers who think better with an espresso and a dry tripod arm.
• Both fit the same trip on different days, and the queue should decide which day gets which.

The verdict

Take the tower for the morning frame and the terrace for the evening one, and treat them as a pair rather than a contest. The single exception is the winter schedule: from November to February the sun stands low all day, the tower's famous morning sweep goes flat by nine, and the terrace with its west-facing rail becomes the only viewpoint in the city that works from lunchtime onward. In those months, choose the table. In every other month, keep the pair, and let the light pick the appointment.