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Use or don’t use auto ISO
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Jun 11, 2018 14:57:39   #
sinderone
 
I have generally kept auto ISO on and just over ridden it when called for. I am now wondering, however, if I should simply leave it off. To that end, I’m curious what others do.
 
Jun 11, 2018 14:59:53   #
Longshadow (a regular here)
 
I normally set the ISO and change it when needed.
Jun 11, 2018 15:15:36   #
ken_stern
 
I have never used "Auto ISO" -- However that's no more than a carryover film camera habit ---- Maby for some as yet unknown reason I should -- I do have an old but open mind on this subject -- So I'll keep quiet & wait for more responses ---
Jun 11, 2018 15:21:05   #
BebuLamar (a regular here)
 
I shoot a lot with auto ISO and A mode. I set my 24-85mm lens at f/8 or f/5.6, minimum ISO at 100 and maximum ISO at 12,800.
Jun 11, 2018 15:25:11   #
Linda From Maine (a regular here)
 
Once I discovered auto ISO, there was no turning back I set shutter speed and aperture based on my subject and what I want the result to look like. I set ISO manually if conditions call for it. If you're getting the look you want and aren't frustrated by incorrect exposure, why change?

For a pro photographer's endorsement of auto ISO in certain conditions, read Steve Perry (he's on UHH):

http://www.uglyhedgehog.com/t-517754-2.html#8771285

---
Jun 11, 2018 15:25:23   #
lamiaceae (a regular here)
 
sinderone wrote:
I have generally kept auto ISO on and just over ridden it when called for. I am now wondering, however, if I should simply leave it off. To that end, I’m curious what others do.


I never use "Auto ISO", the couple times I tried it I found it just confused me. I want Aperture and Shutter Speed to change in EVs as I make changes to exposure. And EC too. Note, with Pentax it is a mode on the dial Sv (Sensitivity), not the arcane menu setting on a Nikon that most seem to think of. Not sure how or where Canon does it.
 
Jun 11, 2018 15:26:28   #
ken_stern
 
BebuLamar wrote:
I shoot a lot with auto ISO and A mode. I set my 24-85mm lens at f/8 or f/5.6, minimum ISO at 100 and maximum ISO at 12,800.


Now tell me what are the benefits vs setting the aperture/shutter then dialing ISO up/down
Jun 11, 2018 15:30:54   #
srt101fan (a regular here)
 
sinderone wrote:
I have generally kept auto ISO on and just over ridden it when called for. I am now wondering, however, if I should simply leave it off. To that end, I’m curious what others do.


This subject has been extensively covered in numerous threads. I second Linda's recommendation to look at Steve Perry's video. Another discussion you might find useful is John Gerlach's argument for Auto ISO.

http://www.uglyhedgehog.com/t-487131-1.html

I use it most of the time and love it. If you've been using it, why do you want to turn it off now? What is giving you second thoughts?
Jun 11, 2018 15:32:34   #
BebuLamar (a regular here)
 
ken_stern wrote:
Now tell me what are the benefits vs setting the aperture/shutter then dialing ISO up/down


I generally want f/8 so I leave the aperture at f/8. I don't shoot fast moving objects so any shutter speed faster than the minimum hand holding shutter speed is fine. In bright light the ISO is at 100 and the shutter speed changes. Once the shutter speed get to the hand holding shutter speed (1/focal length) it doesn't drop any more but rather the ISO goes up. So I have the aperture that I want. I can be sure that my shutter speed isn't too slow for hand holding and the ISO goes up only when the light goes down. When the light is bright the ISO goes down to allow for noise free images. When the light is dim the ISO goes up but I accept that rather than having blurry pictures. My camera can get virtually noise free at ISO 1600. The noise is not excessive up to ISO 6400. At ISO 12,800 it's still acceptable to me.
Jun 11, 2018 15:34:02   #
PeterBergh
 
On another thread, Steve Perry stated that he often uses manual with auto ISO.
Jun 11, 2018 15:47:27   #
GoofyNewfie (a regular here)
 
I use it on my Fuji X-E2, my travel camera, most of the time. Works well. For work, with my Nikon’s, I tried it, but prefer to set it myself.
Also found that with flash, it didn’t work well for me.
If it gives you good exposures , use it!
 
Jun 11, 2018 15:49:47   #
ken_stern
 
BebuLamar wrote:
I generally want f/8 so I leave the aperture at f/8. I don't shoot fast moving objects so any shutter speed faster than the minimum hand holding shutter speed is fine. In bright light the ISO is at 100 and the shutter speed changes. Once the shutter speed get to the hand holding shutter speed (1/focal length) it doesn't drop any more but rather the ISO goes up. So I have the aperture that I want. I can be sure that my shutter speed isn't too slow for hand holding and the ISO goes up only when the light goes down. When the light is bright the ISO goes down to allow for noise free images. When the light is dim the ISO goes up but I accept that rather than having blurry pictures. My camera can get virtually noise free at ISO 1600. The noise is not excessive up to ISO 6400. At ISO 12,800 it's still acceptable to me.
I generally want f/8 so I leave the aperture at f/... (show quote)


Interesting
Thanks for responding
Jun 11, 2018 16:46:25   #
DWU2 (a regular here)
 
I use it from time to time, and with a limit set on the upper ISO range. Someone said they set the max to 12800. Seems high to me due to potential noise. I might set the limit to be 4800, possibly less.
Jun 11, 2018 16:50:25   #
DaveO (a regular here)
 
DWU2 wrote:
I use it from time to time, and with a limit set on the upper ISO range. Someone said they set the max to 12800. Seems high to me due to potential noise. I might set the limit to be 4800, possibly less.


That would depend on the camera and your standard of acceptability. My D810, D500 and D850 are more capable of higher ISO than my D7100.
Jun 11, 2018 17:07:34   #
DWU2 (a regular here)
 
DaveO wrote:
That would depend on the camera and your standard of acceptability. My D810, D500 and D850 are more capable of higher ISO than my D7100.


I agree.
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