High Noise

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tomematthews New Member • Posts: 3
High Noise

Hi All

Sorry - probably a real newbie question, but I have been experimenting with a 10 stop ND filter (just experimenting at home before I take it out and about)

I am in a fairly low-lit room and using a Nikon D5200 with Tamron 18-270mm lens. I dialled in f4.5 and ISO1000 which gave an exposure of 1/4. Therefore with the ND attached, an exposure time of 4 minutes.

The resulting image is attached. I was expecting some minor noise due to the ISO setting, but the resulting noise is quite extreme. Can anyone enlighten me as to why this might be, please?!?

Images attached are the original image (shot in RAW, converted to JPEG using Photoshop to upload; no editing), and also a screenshot of a zoom on the original image, to show the issue. It's quite pronounced!

Original image

Screenshot of zoom of original image showing the noise

Thank you!

Nikon D5200
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