How-to guides

How to operate the camera controls

All the examples below assume that you have already instantiated a Camera object:

from camera import Camera
c = Camera()

Advance the film

c.film_advance_lever.wind()

Set a film speed setting

c.film_speed = <speed>

Selectable film speeds are 25, 50, 100, 200, 400, 800 ASA.

Select shutter-priority exposure mode mode

c.aperture = "A"

Check the light meter

c.exposure_indicator()

Press the shutter button

c.shutter_button.press()

Set aperture manually

c.aperture = <ƒ-number>

Selectable ƒ-numbers are between 1.7 and 16.

Open back

c.back.open()

How to run tests

Tests are in test_camera.py and require pytest.

Install pytest, and run: pytest.

How to build the documentation

In the docs directory, run:

make install

This creates a virtual environment and installs the components listed in docs/requirements.txt.

To build the documentation, run:

make html

The documentation can be found docs/_build/html.

Or to build and serve it, with automatic refresh on changes:

make run

The documentation is served at http://127.0.0.1:8080

To check spelling, run:

make spelling

Any correctly spelled but unrecognised words should be added to docs/spelling_wordlist.txt.