G1X II - Auto ISO is aggressive - Loves fast shutter speed & ISO 3200

Started Apr 27, 2014 | Discussions
Shop cameras & lenses ▾
ulmer Regular Member • Posts: 273
G1X II - Auto ISO is aggressive - Loves fast shutter speed & ISO 3200

I'll preface this with: I know there's a setting for how quickly Auto ISO ramps up. If anyone has any tips on Auto ISO, I'd appreciate it.

Most camera's I've worked with seem to strike a nice balance and (assuming IS is on) seem to aim for a shutter speed that accounts for IS. So slower shutter speed than needed for a handheld shot at the present focal length. This usually results in a sharp picture without going overboard on ISO.

The G1X II seems to aim for a faster shutter speed than necessary and auto ISO of 3200 very quickly. Outside in the shade at the tele end of the zoom, f5.6, it wants ISO 3200. I manually set 800 and got a perfectly fine picture at 1/50 of a sec.

Anyone understand the logic here? I tried setting the Auto ISO "Rate of change" setting to "Low" and that goes to the other extreme. It wanted to use a 1/15 sec exposure which is not going to work out well most of the time. I can't believe there's a "High" setting too.

 ulmer's gear list:ulmer's gear list
Canon EOS 6D Sony a6000 Canon EOS 7D Mark II Canon EOS 80D Canon EF 85mm f/1.8 USM +17 more
Canon PowerShot G1 X II
If you believe there are incorrect tags, please send us this post using our feedback form.
Dale Buhanan MOD Veteran Member • Posts: 4,022
Re: G1X II - Auto ISO is aggressive - Loves fast shutter speed & ISO 3200
1

ulmer wrote:

I'll preface this with: I know there's a setting for how quickly Auto ISO ramps up. If anyone has any tips on Auto ISO, I'd appreciate it.

Most camera's I've worked with seem to strike a nice balance and (assuming IS is on) seem to aim for a shutter speed that accounts for IS. So slower shutter speed than needed for a handheld shot at the present focal length. This usually results in a sharp picture without going overboard on ISO.

The G1X II seems to aim for a faster shutter speed than necessary and auto ISO of 3200 very quickly. Outside in the shade at the tele end of the zoom, f5.6, it wants ISO 3200. I manually set 800 and got a perfectly fine picture at 1/50 of a sec.

Anyone understand the logic here? I tried setting the Auto ISO "Rate of change" setting to "Low" and that goes to the other extreme. It wanted to use a 1/15 sec exposure which is not going to work out well most of the time. I can't believe there's a "High" setting too.

In any of the creative modes -- like P or Av -- in the menu set your ISO auto setting to slow and whatever max ISO you would like to have the camera stop at.  That Slow setting will try to keep the camera at a low ISO for longer.  Fast ramps it up quickly, standard is somewhere in the middle.  Sounds like you want yours set to slow.

-- hide signature --

kind regards
Dale

 Dale Buhanan's gear list:Dale Buhanan's gear list
Canon PowerShot SX50 HS Canon PowerShot G1 X II Canon EOS 70D Canon PowerShot SD500 Canon PowerShot G5 +34 more
B1ackhat Senior Member • Posts: 1,968
Re: G1X II - Auto ISO is aggressive - Loves fast shutter speed & ISO 3200

Lower the max ISO and the camera should choose a lower ISO at each consecutive level.  Personally, I think 2500 is the absolute limit.

-- hide signature --

"We can judge the heart of a man by his treatment of animals." ~ Immanual Kant

Keyboard shortcuts:
FForum MMy threads