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    • Cameratose
      A7 IV Freezing

      By Cameratose · Posted

      AI sez: The CHIPFANCIER CFexpress Type A 4.0 memory card offers 1700MB/s read speeds and is VPG400 certified, making it suitable for 8K video and high-speed shooting. However, some users have reported limitations in frame rates with this card.  Don't know if that applies, but it sounds similar. Any chance on using/getting a different card? The A7 IV has a ridiculous buffer, it shouldn't slow down at all with a good card. 
    • Jeffreykmd
      A7 IV Freezing

      By Jeffreykmd · Posted

      Make sure camera and lens is updated to latest firmware. 
    • Richard A
      ISO Bracketing

      By Richard A · Posted

      ISO 320 is the A7R5's second base ISO setting. You will find at ISO 320 you will get better results than even ISO 200. I normally take a set of shots at 1600, 3200 and 6400 ISO. I am taking 60 light frames and 10 dark frames. I don't do any adjustments to the files before stacking. I really need to get organised and do some bias frames now. Here is pretty much my first successful Milky Way shot from a few months ago. I was combatting a bit of ambient light and quite a lot of cloud but I'm pretty happy with this. It was shot using my Sigma 16-28 f2.8 which is better at astro than I had anticipated, at ISO 1600.

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