Astrophotography: is faster better?

Astrophotography: is faster better?

In astrophotography it is usually better to go for the mid-range settings for the best results.

Published: March 26, 2015 at 12:00 pm

Over the last few years, I've been impressed by how fast developments have taken place in the field of digital imaging, and indeed by their effect on astrophotography.

It's not just features such as integrated intervalometers (that's built-in programmable timers to you and me) or rear tilt-able LCD screens that are useful to night sky photography: the ever-increasing sensitivity or ISO setting is often a talking point on astro forums

Yet although recent years have seen an amazing boost to the highest ISO speeds found on DSLRs, it is interesting to note that high ISOs are not always that useful for astrophotography.

Indeed, our resident astrophotographer Pete Lawrence has often pointed out, when reviewing such high ISO cameras, that the very highest values often lack the dynamic range and colour saturation to really be that useful.

So although it seems like a great selling point, in astrophotography it is usually better to go for the mid-range settings for the best results.

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