K-3iii ISO sensitivity setting

**Robert N** · 11-08-2022, 08:13 AM

Out of interest, on the K-3iii, within the 'Exposure Setting' menu, 'ISO Sensitivity Setting' section, the 'Min. Shutter Speed Op.', ISO Auto with Min. Speed' and 'Minimum Shutter Speed' are greyed out and cannot be adjusted.
Can anyone advise what function(s) are these linked to, to prevent them being utilised. My guess is a link to a program function. As I don't use program functions, I don't have intimate knowledge in this area.
Looking forward to your replies.

**UncleVanya** · 11-08-2022, 08:26 AM

Originally posted by Robert N

Out of interest, on the K-3iii, within the 'Exposure Setting' menu, 'ISO Sensitivity Setting' section, the 'Min. Shutter Speed Op.', ISO Auto with Min. Speed' and 'Minimum Shutter Speed' are greyed out and cannot be adjusted.
Can anyone advise what function(s) are these linked to, to prevent them being utilised. My guess is a link to a program function. As I don't use program functions, I don't have intimate knowledge in this area.
Looking forward to your replies.

What mode is this in where they are grayed out?

**Robert N** · 11-08-2022, 09:59 AM

Originally posted by UncleVanya

What mode is this in where they are grayed out?

Many thanks for the reply. The greyed-out functions are in that state for all mode settings. The camera functions perfectly well as far as I believe, I am just curious what influences this group of functions.

**mstahulak** · 11-08-2022, 10:10 AM

Originally posted by Robert N

Many thanks for the reply. The greyed-out functions are in that state for all mode settings. The camera functions perfectly well as far as I believe, I am just curious what influences this group of functions.

Should be settable in Sv mode?

kypfer · 11-08-2022, 10:16 AM

Originally posted by Michaelina2

See K-3III Operating Manual, pp57...

Cheers... M

Hmmm … tells you what it should do, not under what conditions you can actually change things (my options are greyed out as well!)

Originally posted by Robert N

Many thanks for the reply. The greyed-out functions are in that state for all mode settings. The camera functions perfectly well as far as I believe, I am just curious what influences this group of functions.

Me too

Originally posted by mstahulak

Should be settable in Sv mode?

Nope … unless there's some other factor to consider !!

**mstahulak** · 11-08-2022, 10:30 AM

Originally posted by kypfer

Hmmm … tells you what it should do, not under what conditions you can actually change things (my options are greyed out as well!)

Me too

Nope … unless there's some other factor to consider !!

They are enabled without a lens mounted in Sv mode (at least for me)…? But that is weird.

**Robert N** · 11-08-2022, 10:36 AM

There are certain areas of the manual where additional explanation is required and this seems to be one of them. One explanation maybe these functions were originally placed in the menu, but in practice not deployed.

kypfer · 11-08-2022, 10:38 AM

Originally posted by mstahulak

They are enabled without a lens mounted in Sv mode (at least for me)…? But that is weird.

Ha ha … hadn't tried it without a lens

It's also available with an "M" lens fitted, so possibly something to do with the clever capabilities of using non-"A" lenses in a/e modes.
Now just got to figure out what it's good for … I wonder if it's covered in the K-3iii ebook?

**W412ren** · 11-08-2022, 10:41 AM

Had a quick look on mine. With an M series lens fitted these settings are available in Av mode but greyed out in Tv mode which I think makes sense.
Will have to investigate further
Edit - just seen @kypfer ‘s reply above :-)

C_Jones · 11-08-2022, 12:27 PM - **1 Like**

You may want to check the "Highlight" or "Shadow" correction options to see if they may possibly be related to other settings that you are trying to access. If you have one or both of them set, they may be already using designated min or max settings. The manual may go further into how the settings may be affected in the way you have mentioned.

AfterPentax Mark II · 11-08-2022, 01:34 PM - **1 Like**

Originally posted by Robert N

Out of interest, on the K-3iii, within the 'Exposure Setting' menu, 'ISO Sensitivity Setting' section, the 'Min. Shutter Speed Op.', ISO Auto with Min. Speed' and 'Minimum Shutter Speed' are greyed out and cannot be adjusted.
Can anyone advise what function(s) are these linked to, to prevent them being utilised. My guess is a link to a program function. As I don't use program functions, I don't have intimate knowledge in this area.
Looking forward to your replies.

As far as I know it only works if Auto ISO is enabled. It is the same in the older K-3 II, but there it is directly coupled with enabling Auto ISO, but on the new one you have more options to make it more precise and to your liking.

**Mikesul** · 11-08-2022, 06:24 PM

That makes sense. But it does not seem to work in TAV which is also a kind of Auto ISO.

**Robert N** · 11-09-2022, 02:19 AM

Originally posted by Mikesul

That makes sense. But it does not seem to work in TAV which is also a kind of Auto ISO.

If we look at the instruction 17 on page 11 of the manual, it discusses setting auto ISO with the green button. When auto ISO is enabled this does allow adjustment of the functions discussed in my original query. Adjusting the ISO again returns it again to the manual mode. As in the past I have only used manual ISO settings, with Tav being my primary floating ISO mode. Hence the functions discussed have always been greyed-out. Hopefully the mystery is solved.

Update - I have been the above auto ISO procedure for a range of modes and my findings are below:
Sv - no change to e-dial operation
Tv - Rear e-dial changes ISO and aperture
Av - Rear e-dial changes ISO and aperture
Tav - No change in e-dial operation
M - Rear e-dial changes ISO and shutter speed - aperture remains static
B - Rear wheel changes ISO only

**SrMi** · 11-13-2022, 06:02 PM - **1 Like**

Originally posted by Mikesul

That makes sense. But it does not seem to work in TAV which is also a kind of Auto ISO.

In TAv mode, the shutter speed is specified with the dials, not by the camera. Therefore, the shutter speed settings are disabled in the ISO Sensitivity Setting panel.

kypfer · 11-14-2022, 12:50 AM - **1 Like**

Originally posted by Robert N

If we look at the instruction 17 on page 11 of the manual, it discusses setting auto ISO with the green button. When auto ISO is enabled this does allow adjustment of the functions discussed in my original query. Adjusting the ISO again returns it again to the manual mode. As in the past I have only used manual ISO settings, with Tav being my primary floating ISO mode. Hence the functions discussed have always been greyed-out. Hopefully the mystery is solved.

Update - I have been the above auto ISO procedure for a range of modes and my findings are below:
Sv - no change to e-dial operation
Tv - Rear e-dial changes ISO and aperture
Av - Rear e-dial changes ISO and aperture
Tav - No change in e-dial operation
M - Rear e-dial changes ISO and shutter speed - aperture remains static
B - Rear wheel changes ISO only

The potential problem with a list like this is that the K-3iii, moreso than any other Pentax camera, is very configurable, so these options are only valid if the camera is set up exactly the same

11-08-2022, 08:13 AM	#1
Robert N Site Supporter Join Date: Oct 2017 Location: Sale, Cheshire Posts: 247	K-3iii ISO sensitivity setting Out of interest, on the K-3iii, within the 'Exposure Setting' menu, 'ISO Sensitivity Setting' section, the 'Min. Shutter Speed Op.', ISO Auto with Min. Speed' and 'Minimum Shutter Speed' are greyed out and cannot be adjusted. Can anyone advise what function(s) are these linked to, to prevent them being utilised. My guess is a link to a program function. As I don't use program functions, I don't have intimate knowledge in this area. Looking forward to your replies.

11-09-2022, 02:19 AM	#13
Robert N Site Supporter Join Date: Oct 2017 Location: Sale, Cheshire Posts: 247 Original Poster	Originally posted by Mikesul That makes sense. But it does not seem to work in TAV which is also a kind of Auto ISO. If we look at the instruction 17 on page 11 of the manual, it discusses setting auto ISO with the green button. When auto ISO is enabled this does allow adjustment of the functions discussed in my original query. Adjusting the ISO again returns it again to the manual mode. As in the past I have only used manual ISO settings, with Tav being my primary floating ISO mode. Hence the functions discussed have always been greyed-out. Hopefully the mystery is solved. Update - I have been the above auto ISO procedure for a range of modes and my findings are below: Sv - no change to e-dial operation Tv - Rear e-dial changes ISO and aperture Av - Rear e-dial changes ISO and aperture Tav - No change in e-dial operation M - Rear e-dial changes ISO and shutter speed - aperture remains static B - Rear wheel changes ISO only Last edited by Robert N; 11-10-2022 at 05:05 AM. Reason: update

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11-08-2022, 08:26 AM	#2
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,397	Originally posted by Robert N Out of interest, on the K-3iii, within the 'Exposure Setting' menu, 'ISO Sensitivity Setting' section, the 'Min. Shutter Speed Op.', ISO Auto with Min. Speed' and 'Minimum Shutter Speed' are greyed out and cannot be adjusted. Can anyone advise what function(s) are these linked to, to prevent them being utilised. My guess is a link to a program function. As I don't use program functions, I don't have intimate knowledge in this area. Looking forward to your replies. What mode is this in where they are grayed out?

11-08-2022, 09:59 AM	#3
Robert N Site Supporter Join Date: Oct 2017 Location: Sale, Cheshire Posts: 247 Original Poster	Originally posted by UncleVanya What mode is this in where they are grayed out? Many thanks for the reply. The greyed-out functions are in that state for all mode settings. The camera functions perfectly well as far as I believe, I am just curious what influences this group of functions.

11-08-2022, 10:10 AM	#4
mstahulak Loyal Site Supporter Join Date: Mar 2008 Location: Utah Posts: 88	Originally posted by Robert N Many thanks for the reply. The greyed-out functions are in that state for all mode settings. The camera functions perfectly well as far as I believe, I am just curious what influences this group of functions. Should be settable in Sv mode?

11-08-2022, 10:16 AM	#5
kypfer Pentaxian Join Date: Jan 2018 Location: Jersey C.I. Posts: 3,591	Originally posted by Michaelina2 See K-3III Operating Manual, pp57... Cheers... M Hmmm … tells you what it should do, not under what conditions you can actually change things (my options are greyed out as well!) Originally posted by Robert N Many thanks for the reply. The greyed-out functions are in that state for all mode settings. The camera functions perfectly well as far as I believe, I am just curious what influences this group of functions. Me too Originally posted by mstahulak Should be settable in Sv mode? Nope … unless there's some other factor to consider !!

11-08-2022, 10:30 AM	#6
mstahulak Loyal Site Supporter Join Date: Mar 2008 Location: Utah Posts: 88	Originally posted by kypfer Hmmm … tells you what it should do, not under what conditions you can actually change things (my options are greyed out as well!) Me too Nope … unless there's some other factor to consider !! They are enabled without a lens mounted in Sv mode (at least for me)…? But that is weird.

11-08-2022, 10:36 AM	#7
Robert N Site Supporter Join Date: Oct 2017 Location: Sale, Cheshire Posts: 247 Original Poster	There are certain areas of the manual where additional explanation is required and this seems to be one of them. One explanation maybe these functions were originally placed in the menu, but in practice not deployed.

11-08-2022, 10:38 AM	#8
kypfer Pentaxian Join Date: Jan 2018 Location: Jersey C.I. Posts: 3,591	Originally posted by mstahulak They are enabled without a lens mounted in Sv mode (at least for me)…? But that is weird. Ha ha … hadn't tried it without a lens It's also available with an "M" lens fitted, so possibly something to do with the clever capabilities of using non-"A" lenses in a/e modes. Now just got to figure out what it's good for … I wonder if it's covered in the K-3iii ebook?

11-08-2022, 10:41 AM	#9
W412ren Loyal Site Supporter Join Date: Jul 2011 Location: Fareham, Hampshire Photos: Albums Posts: 570	Had a quick look on mine. With an M series lens fitted these settings are available in Av mode but greyed out in Tv mode which I think makes sense. Will have to investigate further Edit - just seen @kypfer ‘s reply above :-)

11-08-2022, 12:27 PM - 1 Like	#10
C_Jones Pentaxian Join Date: Sep 2012 Location: NY Photos: Gallery \| Albums Posts: 6,079	You may want to check the "Highlight" or "Shadow" correction options to see if they may possibly be related to other settings that you are trying to access. If you have one or both of them set, they may be already using designated min or max settings. The manual may go further into how the settings may be affected in the way you have mentioned.

11-08-2022, 01:34 PM - 1 Like	#11
AfterPentax Mark II Pentaxian Join Date: Mar 2021 Posts: 1,458	Originally posted by Robert N Out of interest, on the K-3iii, within the 'Exposure Setting' menu, 'ISO Sensitivity Setting' section, the 'Min. Shutter Speed Op.', ISO Auto with Min. Speed' and 'Minimum Shutter Speed' are greyed out and cannot be adjusted. Can anyone advise what function(s) are these linked to, to prevent them being utilised. My guess is a link to a program function. As I don't use program functions, I don't have intimate knowledge in this area. Looking forward to your replies. As far as I know it only works if Auto ISO is enabled. It is the same in the older K-3 II, but there it is directly coupled with enabling Auto ISO, but on the new one you have more options to make it more precise and to your liking.

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11-08-2022, 06:24 PM	#12
Mikesul Loyal Site Supporter Join Date: Sep 2009 Location: Phoenix, AZ Posts: 7,594	That makes sense. But it does not seem to work in TAV which is also a kind of Auto ISO.

11-13-2022, 06:02 PM - 1 Like	#14
SrMi Loyal Site Supporter Join Date: Jul 2021 Location: SF Bay Area Posts: 45	Originally posted by Mikesul That makes sense. But it does not seem to work in TAV which is also a kind of Auto ISO. In TAv mode, the shutter speed is specified with the dials, not by the camera. Therefore, the shutter speed settings are disabled in the ISO Sensitivity Setting panel.

11-14-2022, 12:50 AM - 1 Like	#15
kypfer Pentaxian Join Date: Jan 2018 Location: Jersey C.I. Posts: 3,591	Originally posted by Robert N If we look at the instruction 17 on page 11 of the manual, it discusses setting auto ISO with the green button. When auto ISO is enabled this does allow adjustment of the functions discussed in my original query. Adjusting the ISO again returns it again to the manual mode. As in the past I have only used manual ISO settings, with Tav being my primary floating ISO mode. Hence the functions discussed have always been greyed-out. Hopefully the mystery is solved. Update - I have been the above auto ISO procedure for a range of modes and my findings are below: Sv - no change to e-dial operation Tv - Rear e-dial changes ISO and aperture Av - Rear e-dial changes ISO and aperture Tav - No change in e-dial operation M - Rear e-dial changes ISO and shutter speed - aperture remains static B - Rear wheel changes ISO only The potential problem with a list like this is that the K-3iii, moreso than any other Pentax camera, is very configurable, so these options are only valid if the camera is set up exactly the same