Attempted astro with eos m + 22mm lens but frame flashed red and won't take shot

Started 10 months ago | Questions thread
bobkoure
bobkoure Senior Member • Posts: 1,574
Re: 3 + 3 + 3

PhotoTeach2 wrote:

Astro must be done in manual mode, (both exposure and focus).

Typical exposures are ISO-3200 @ f/2.8(3) @ 30-seconds. (I remember it as 3+3+3)

But since longer than 15-seconds can show "trails", I suggest using f/2 lens or ISO-6400 @ 15-seconds.

If you don't have a dual-mode sensor, like the D850, and are shooting in RAW, why bother raising ISO? Read noise?

 bobkoure's gear list:bobkoure's gear list
Nikon D600 Nikon D750 Nikon AF Nikkor 14mm f/2.8D ED Nikon AF Nikkor 20mm f/2.8D Nikon AF Nikkor 24mm f/2.8D +14 more
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