Minimum Shutter Speed Protection ???

As per this article on using Aperture Priority Mode:

https://photographylif​e.com/aperture-priority-mode

: I am fairly certain that our Canon T3/1100Ds do not have this minimum shutter speed ability.
Do any of the Canon DSLRs have this feature ?

Along the same line of thought, when shooting in AV mode (I have no idea what the "V" in AV represents), with ISO set to Auto and maximum ISO set to the highest, 6400 in my case, if a scene is darker, will the camera choose the maximum ISO and then the fastest shutter for the given situation; or, will it slow down the shutter before beginning to raise the ISO; or, will it sort of ride the middle, slowing the shutter and raising the ISO the same amount of stops ?

Yes; I know I can shoot in Manual, but that leaves my question unanswered.

Thanks for reading and all help is appreciated.

BuckSkin wrote in post #18974343
As per this article on using Aperture Priority Mode:

https://photographylif​e.com/aperture-priority-mode

: I am fairly certain that our Canon T3/1100Ds do not have this minimum shutter speed ability.
Do any of the Canon DSLRs have this feature ?

Along the same line of thought, when shooting in AV mode (I have no idea what the "V" in AV represents), with ISO set to Auto and maximum ISO set to the highest, 6400 in my case, if a scene is darker, will the camera choose the maximum ISO and then the fastest shutter for the given situation; or, will it slow down the shutter before beginning to raise the ISO; or, will it sort of ride the middle, slowing the shutter and raising the ISO the same amount of stops ?

Yes; I know I can shoot in Manual, but that leaves my question unanswered.

Thanks for reading and all help is appreciated.

The "V" in AV is for "value" so AV is aperture value and TV is for time value.

Personally I rarely use it, perhaps not much more than to make sure it works. Having said that I come from an era where I first looked at my subject and set a shutter speed that I was reasonably sure would stop motion, or at least enhance motion as desired (panning).

John from PA wrote in post #18974355
The "V" in AV is for "value" so AV is aperture value and TV is for time value.

It is actually the "A" that is questionable. The number used with "Av" is actually an f-ratio value, not an aperture value.

Yes some of the Canon models allow for shutter min/maxes to be defined, the 1D series have had this for a while, but other bodies like the 5D4, etc also do as well these days. None of the rebels do though, I don't believe, but could be wrong.

Aperture priority is "Hey lens, shut down the aperture to give me an f/2.8 ratio", and isn't "hey lens, shut down the aperture blades to 11.57% from wide open to give me f/2.8". The latter, although more technically correct, would be a nightmare because different lenses would have different values to get the same f/2.8 fstop.

BuckSkin wrote in post #18974343
Along the same line of thought, when shooting in AV mode (I have no idea what the "V" in AV represents), with ISO set to Auto and maximum ISO set to the highest, 6400 in my case, if a scene is darker, will the camera choose the maximum ISO and then the fastest shutter for the given situation; or, will it slow down the shutter before beginning to raise the ISO; or, will it sort of ride the middle, slowing the shutter and raising the ISO the same amount of stops ?.

Cameras on Auto (those set with Auto ISO, auto selection of shutter to match user-selected lens aperture) will try to use a lower ISO in combination with a faster shutter speed, so it gets a 'proper exposure' under those circumstances, without forcing a too-slow-to-handhold shutter speed. But the camera never knows when you ARE and when you are NOT using a tripod, so it does choose stupidly slow shutter speeds in handheld camera situations! Generalization only, though.

Try out a set of experiments for yourself, and SEE WHAT IT DOES! Every digital shot is 'free'...you paid for them when you bought the camera! That encourages experimentation to learn how Canon programmed the camera...few of us know everything about the quirks of the Japanese programmer working at Canon, and they often say nothing on the subject, so we are left to experiment. Even though I might have a good base of knowledge, I still have to experiment a lot to find out specifics of how MY camera model behaves, as it is often a bit different than another camera model from Canon.

Thanks.
I will take your advice and perform some tests.
I know it is only wishful thinking; but, it would be nice if the camera would notch up and down the ISO ladder before slowing the shutter speed at a chosen aperture.

Wilt wrote in post #18974483
the camera never knows when you ARE and when you are NOT using a tripod

You have just came upon a new feature that should become a standard on all cameras in the future --- a two-position switch on the camera "Tripod" or "Handheld"
I don't know why they haven't already had such a switch for years.

That fact is still hard for me to absorb.
I grew up poorer than a church mouse (and still am for that matter).
We never had usable batteries in a flashlight, gas in the lawn-mower can, extra or spare of anything.
A 24-exposure roll of film in an old cheap camera would have two Christmases on it and Christmas rolling around again before it might get developed.
It is still deeply ingrained into my being and hard to shake off that taking pictures doesn't cost anything anymore.

TeamSpeed wrote in post #18974400
Yes some of the Canon models allow for shutter min/maxes to be defined, the 1D series have had this for a while, but other bodies like the 5D4, etc also do as well these days. None of the rebels do though, I don't believe, but could be wrong.

Thanks

Using Auto ISO you can let the camera adjust ISO and you can specify the highest ISO setting that you want the camera to use, up to ISO 6400 on the T3 (I think).

BuckSkin wrote in post #18974596
.
It is still deeply ingrained into my being and hard to shake off that taking pictures doesn't cost anything anymore.
.

.
It seems a bit unusual to me that you have changed your mindset so much over the years that you now delve so deeply into trying to understand the obscure technicalities of things like Auto ISO and automated exposure modes, and the software that is needed to make them work together, yet you have not been able to get past having to pay for each exposure that you take.

It seems plausible that if your mind is able to completely and utterly change its entire base point and value system for some things, that it would also be able to do so for other closely related things.


.

To the OP

The best way to understand minimum shutter speed as it pertains to your purchased camera is to read your owners manual.

I use a 1Dx2 and 5D4 combo. My camera has functions that are much different than consumer and prosumer based bodies for minimum shutter speeds. The article that you posted is a generality and is not specific to your camera

My camera is so good in the AV and TV modes that I can set minimum shutter speeds that I want, or desired depths of field (AV Mode) and allow auto ISO functions to complete the triangle for an accurate exposure

You will need to explore what your cameras custom functions allow you to do and that information is in your owners manual.

A camera that does well in AV & TV modes is because it's a camera that can handle any ISO (or you are not shooting in challenging conditions). Every camera is a little different & the user needs to know it inside & out. I always (almost) shoot in full manual mode only allowing the ISO to be "auto". This auto ISO was a much bigger problem when I was shooting crop, now that I've switched to FF, auto ISO is very doable.

I'm not really sure if the 6D has a minimum shutter speed. If it did, I'm not sure if I would use it. Maximum ISO setting, however, is something different.

I feel these "minimums" & "maximums" really only apply to people who are not shooting in manual. If you set everything yourself, these limitations are moot.

The problem is that auto ISO has gone through so many iterations and only recently with the 7d2, and a handful of other bodies, has it been fully implemented with all kinds of limits and EC in manual.

BuckSkin wrote in post #18974596
Thanks.
I will take your advice and perform some tests.
I know it is only wishful thinking; but, it would be nice if the camera would notch up and down the ISO ladder before slowing the shutter speed at a chosen aperture.

When shooting in AV with Auto-ISO the camera also takes into account the focal length of the lens.

BuckSkin wrote in post #18974596
That fact is still hard for me to absorb.
I grew up poorer than a church mouse (and still am for that matter).
We never had usable batteries in a flashlight, gas in the lawn-mower can, extra or spare of anything.
A 24-exposure roll of film in an old cheap camera would have two Christmases on it and Christmas rolling around again before it might get developed.
It is still deeply ingrained into my being and hard to shake off that taking pictures doesn't cost anything anymore.

You don't have to take any pictures to test the exposure metering; all you need to do is look through the viewfinder and watch the numbers change as you point the camera at light and dark subjects.

TeamSpeed wrote in post #18974731
The problem is that auto ISO has gone through so many iterations and only recently with the 7d2, and a handful of other bodies, has it been fully implemented with all kinds of limits and EC in manual.

There are still some very simple changes that could be made which would be very helpful. One would be an option to let the camera raise the shutter speed in auto-ISO-M mode to prevent blown images when the shutter speed is too low for base ISO (or some other chosen minimum ISO, if the camera also supports it).

Over-exposure at base ISO due to a slow shutter speed is the only big sore spot for me about auto-ISO-M, and the only real "danger" of it. Anyone who wants to "overexpose" on purpose can use full manual.