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<blockquote data-quote="Basilisk" data-source="post: 598990" data-attributes="member: 43068">Clearly. As I said for astro work I rarely go over 1600 - in fact, I rarely go TO 1600. more commonly sticking to the 800 to 1250 range.&nbsp; There are a couple of Astrophotography groups on Facebook with some pretty good information if you want to improve your astro technique, one of the photographers there uses my camera and settings to get exceptional photos but I haven't quite mastered his post processing techniques yet (I have Lightroom but not Photoshop so cannot do layers or masking). According to DxO Mark the D5500 has a max reliable low light ISO of 1438 and a dynamic range of 14 EV, or 9 EV with 18% s/n ratio. They say it has &quot;class leading low noise&quot;.But of course, investment is needed when you are up against the barriers, and with astro work there are time constraints, with modern Nikon lenses there are aperture constraints, and with digital work there are sensor constraints. I really need a full frame camera with better low light (eg D750) but first I shall get a brighter lens which will also work on my DX camera until I can afford the FX model.</blockquote>

[QUOTE="Basilisk, post: 598990, member: 43068"] Clearly. As I said for astro work I rarely go over 1600 - in fact, I rarely go TO 1600. more commonly sticking to the 800 to 1250 range. There are a couple of Astrophotography groups on Facebook with some pretty good information if you want to improve your astro technique, one of the photographers there uses my camera and settings to get exceptional photos but I haven't quite mastered his post processing techniques yet (I have Lightroom but not Photoshop so cannot do layers or masking). According to DxO Mark the D5500 has a max reliable low light ISO of 1438 and a dynamic range of 14 EV, or 9 EV with 18% s/n ratio. They say it has "class leading low noise". But of course, investment is needed when you are up against the barriers, and with astro work there are time constraints, with modern Nikon lenses there are aperture constraints, and with digital work there are sensor constraints. I really need a full frame camera with better low light (eg D750) but first I shall get a brighter lens which will also work on my DX camera until I can afford the FX model. [/QUOTE]

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