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<title>Étoiles — David Larlet</title>
<meta name="description" content="The 500 rule is used to measure the maximum exposure time you can shoot before the stars become blurry or before star trails appear. Setting the shutter speed for longer than allowed by this rule will result in images that do not have sharp stars.">
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<article>
<header>
  <h1>Étoiles</h1>
</header>
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<blockquote lang="en">
<p>The 500&nbsp;rule is used to measure the <mark>maximum exposure time</mark> you can shoot before the stars become blurry or before star trails appear. Setting the shutter speed for longer than allowed by this rule will result in images that do not have sharp stars.</p>
<p><cite><em><a href="https://astrobackyard.com/the-500-rule/">Use the 500&nbsp;Rule for Astrophotography</a></em> (<a href="/david/cache/2021/f04788683f65047073081e87834a42f8/">cache</a>)</cite></p>
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<p>Je voulais «&nbsp;juste&nbsp;» mettre une bande son cacophonique sur des photos d’étoiles apaisantes. Et puis je me suis rappelé que j’avais fait aussi des <em>timelapses</em>, du coup j’en ai profité pour faire une <a href="https://vimeo.com/547124830/afd00f4a69">petite vidéo</a> de 2&#8239;min 30&#8239;sec. Je garde quand même les photos accessibles ici car j’ai peur du rendu une fois la vidéo compressée par la plateforme que j’utilise pour les héberger.</p>
<p>À un moment, il faudra que je m’en libère.</p>
<hr />
<figure>
    <a href="#etoiles-nuages"
        title="Cliquer pour une version haute résolution">
        <img src="/static/david/2021/etoiles-nuages.jpg" alt="Ciel étoilé (1)"
             loading="lazy" width="1600" height="1200" />
    </a>
    <a href="#_" class="lightbox" id="etoiles-nuages">
        <img src="/static/david/2021/etoiles-nuages.jpg" alt="Ciel étoilé (1)"
             loading="lazy" width="1600" height="1200" />
    </a>
    <figcaption>Les étoiles commencent à apparaître, j’aime les rendu des nuages.</figcaption>
</figure>
<figure>
    <a href="#etoiles-nuages-ensuite"
        title="Cliquer pour une version haute résolution">
        <img src="/static/david/2021/etoiles-nuages-ensuite.jpg" alt="Ciel étoilé (2)"
             loading="lazy" width="1600" height="1200" />
    </a>
    <a href="#_" class="lightbox" id="etoiles-nuages-ensuite">
        <img src="/static/david/2021/etoiles-nuages-ensuite.jpg" alt="Ciel étoilé (2)"
             loading="lazy" width="1600" height="1200" />
    </a>
    <figcaption>La silhouette des arbres est encore visible, c’est probablement le meilleur moment.</figcaption>
</figure>
<figure>
    <a href="#etoiles-reflets"
        title="Cliquer pour une version haute résolution">
        <img src="/static/david/2021/etoiles-reflets.jpg" alt="Ciel étoilé (3)"
             loading="lazy" width="1600" height="1200" />
    </a>
    <a href="#_" class="lightbox" id="etoiles-reflets">
        <img src="/static/david/2021/etoiles-reflets.jpg" alt="Ciel étoilé (3)"
             loading="lazy" width="1600" height="1200" />
    </a>
    <figcaption>J’apprécie d’avoir réussi à capter quelques reflets dans le lac.</figcaption>
</figure>
<figure>
    <a href="#etoiles-reflets-presque-noir"
        title="Cliquer pour une version haute résolution">
        <img src="/static/david/2021/etoiles-reflets-presque-noir.jpg" alt="Ciel étoilé (4)"
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        <img src="/static/david/2021/etoiles-reflets-presque-noir.jpg" alt="Ciel étoilé (4)"
             loading="lazy" width="1600" height="1200" />
    </a>
    <figcaption>J’avais l’impression de voir moins d’étoiles que ce qu’il y a sur la photo !</figcaption>
</figure>

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