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Auto ISO or manual ISO
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Aug 12, 2020 20:19:04   #
bleirer
 
gouldopfl wrote:
Is this a dslr or mirrorless? I have found that mirrorless can handle high ISO without issue. I have gotten good shots with ISO 12500 f/4 in the sun. I also get great shots in dim light at night with iso 25000 in candle light.

Remember a picture doesn't always need to be tack sharp to be a great shot. If that is what your composition requires then fine. I can do night shots without much noise a high ISO from my mirrorless. I am upgrading to the EOS R6 shortly so I expect even better shots with new sensor and AF II focus system
Is this a dslr or mirrorless? I have found that m... (show quote)


Very often the same or very similar sensor is used for the mirrorless as for the dslr. I don't see how the absence of the the mirror changes the exposure?

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Aug 12, 2020 22:25:35   #
SuperflyTNT Loc: Manassas VA
 
selmslie wrote:
You can't always read a scene successfully, especially with back-lit subjects.

Also see my response above to R.G.


And what’s the difference in their reading the backlit scene and yours?

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Aug 13, 2020 00:39:31   #
speedmaster Loc: Kendall, FL
 
Sometimes is better to get a grainy picture than no picture at all... There are situations where manual should be used and ones that an auto is the savior. Just learn to know each of them and based on the conditions chose what to use. I'm far from being a pro, not even a good amateur but I had a couple of friends working for famous newspapers that many times went to auto albeit being so pro that they were able to set a manual shot almost immediately. In conditions of fast moving, changing light, and foreground/background, auto allow to focus in the composition and get a great picture that otherwise would be lost due to those dinamic conditions.
My grandfather always said that the best tool for the job is the one you know how to use...
Cheers
Speed

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Aug 13, 2020 00:46:31   #
Pixeldawg Loc: Suzhou, China
 
I use manual mode for everything. A bit of a control freak when it comes to my images, so I want to ensure that whatever I shoot is going to be to a specific standard. Just how I roll. I almost always shoot at either 25, 400 or 1600, depending on the subject. For my "pretty" photos, ISO of 25 and a tripod. For general work (photojournalism for me), 400 ISO and indoor or night time sports 1600 ISO unless I am permitted to hang lights (for indoor), then it goes back down to 400.

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Aug 13, 2020 02:11:34   #
selmslie Loc: Fernandina Beach, FL, USA
 
SuperflyTNT wrote:
And what’s the difference in their reading the backlit scene and yours?

You need to decide whether you want a silhouette or a blown out background. The camera’s meter is little help in that case.

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Aug 13, 2020 02:23:43   #
SuperflyTNT Loc: Manassas VA
 
selmslie wrote:
You need to decide whether you want a silhouette or a blown out background. The camera’s meter is little help in that case.


You are so full of yourself. Or maybe you just don’t understand how EC works. Your sunny 16 is no better than a meter in that situation.

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Aug 13, 2020 03:20:59   #
TonyBrown
 
You can restrict the maximum iso value on your menu. I normally set it low then adjust upwards as conditions dictate. For wildlife action bif etc. I find auto iso is a must.

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Aug 13, 2020 03:49:17   #
selmslie Loc: Fernandina Beach, FL, USA
 
SuperflyTNT wrote:
You are so full of yourself. Or maybe you just don’t understand how EC works. Your sunny 16 is no better than a meter in that situation.

I have a pretty good handle on EC.

But you haven't mastered it: https://www.uglyhedgehog.com/t-594270-1.html

And it didn't help you avoid blown highlights: https://www.uglyhedgehog.com/t-654585-1.html#11373069

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Aug 13, 2020 07:45:37   #
Xpatch Loc: New York, Antigua, GT.
 
fuji has a setting where you can set the range of iso and base sessions. I’m use Auto or kelvin if it’s tricky and also with a flash I was thought you must be in manual. Ishhot RAW Bhutto will ad a sim for comparison,if needed.

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Aug 13, 2020 08:54:59   #
SuperflyTNT Loc: Manassas VA
 
selmslie wrote:
I have a pretty good handle on EC.

But you haven't mastered it: https://www.uglyhedgehog.com/t-594270-1.html

And it didn't help you avoid blown highlights: https://www.uglyhedgehog.com/t-654585-1.html#11373069


Yeah, just because I may have made some different choices than you doesn’t mean I lack understanding. I took a look at your work and don’t agree with some of your choices either.

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Aug 13, 2020 09:19:54   #
selmslie Loc: Fernandina Beach, FL, USA
 
SuperflyTNT wrote:
Yeah, just because I may have made some different choices than you doesn’t mean I lack understanding. I took a look at your work and don’t agree with some of your choices either.

A wise choice for you would have been to not post evidence of your lack of skill.

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Aug 13, 2020 09:34:21   #
Dan Thornton Loc: Corpus Christi, Texas
 
If auto ISO gave me the perfect exposure every time, I would use it because I am lazy and it would make taking pictures simpler. However, I shoot with Canon 5D mark IV and using auto ISO often results in slightly overexposed images. It might just be 1/3 of a stop, but for my taste, I would prefer underexposure of 1/3 of a stop when shooting outdoors with normal light. When I shot with film, I would tell the camera I was shooting with 32 ASA when I was shooting with 25 ASA. This resulted in richer more saturated color that I preferred.

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Aug 13, 2020 09:35:17   #
R.G. Loc: Scotland
 
selmslie wrote:
M+Auto ISO does not give you control over the result......


Just to be clear, with M+AutoISO you retain complete manual control over the three exposure triangle variables, so it's a bit of a misnomer to call it an auto mode (as some people do), and it's a mistake to suggest that it isn't a manual mode (as some people do).

The main difference between M+AutoISO and M without AutoISO is the way exposure compensation is achieved. The other main difference is that without AutoISO the correct values aren't provided by the camera so you have to do it yourself visually (by keeping an eye on the meter scale while at the same time keeping an eye on the three variable values).

If you add EC to M+AutoISO you retain complete manual control over the whole exposure while the camera assists you by keeping the exposure triangle variables correct. With the method I described it can be implemented simply by playing off shutter speed against ISO - so that's two things to keep an eye on instead of four. It can also be said that that the whole method is intuitive, simple and doesn't require learning anything new.

And did I mention that it's fully manual (because you retain complete manual control over the three exposure triangle variables)?

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Aug 13, 2020 09:40:37   #
R.G. Loc: Scotland
 
Dan Thornton wrote:
.....I shoot with Canon 5D mark IV and using auto ISO often results in slightly overexposed images.....


If you understand exposure compensation you know what causes those situations and also how to deal with them. Plus if the 1/3 of a stop isn't enough to blow any highlights you haven't lost anything and it's easy to correct in post.

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Aug 13, 2020 09:52:24   #
AnthonyBiss Loc: Toronto, Ontario
 
To resolve this kind of issue, I turned off my Auto on setting in my camera.
set my ISO to 200 and S/W to manual for all of my macro type shooting. Same for others.

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