Auto ISO in M ?

**DeepThrob** · 10-15-2019, 05:25 PM

I thought i saw an option for Auto ISO in Manual Mode mentioned somewhere but can't seem to find a way to enable it.

**clackers** · 10-15-2019, 05:29 PM

Well, TAv does that, right, DT?

stevebrot · 10-15-2019, 05:35 PM

Originally posted by DeepThrob

I thought i saw an option for Auto ISO in Manual Mode mentioned somewhere but can't seem to find a way to enable it.

I don't think this has been supported on any Pentax camera since before I bought my K10D in 2006. Auto ISO for M modes is disabled on flagship models and defaults over silently to TAv mode on other models.

Steve

**Sir Nameless** · 10-15-2019, 05:49 PM

In case you're asking about manual lenses ("K" or "M") you can have auto-ISO, but the camera will only shoot wide open (in all modes: M, TAv, P, etc). The green button does nothing. With manual ISO, the green button performs a stop-down metering, and the lens will stop down during the exposurer to whatever you have set on the aperture ring. Just tried it with my K-50 and K 50.

**ismaelg** · 10-15-2019, 06:06 PM

In TAV mode you set shutter speed and aperture and the camera chooses ISO. Is that what you mean?

Adam · 10-15-2019, 06:12 PM - **1 Like**

Originally posted by DeepThrob

I thought i saw an option for Auto ISO in Manual Mode mentioned somewhere but can't seem to find a way to enable it.

Yup, just switch to TAv on the mode dial. On certain cameras like the K-01, TAv is baked into M mode, but is effectively the same thing.

**DeepThrob** · 10-15-2019, 07:27 PM

Originally posted by clackers

Well, TAv does that, right, DT?

Well yes, it does. Never used TAv , had to look it up. (Only Pentax has TAv)

What Is TAV Mode And Why Is It Useful? | ePHOTOzine

MarkJerling · 10-15-2019, 07:33 PM

Originally posted by DeepThrob

Well yes, it does. Never used TAv , had to look it up. (Only Pentax has TAv)

What Is TAV Mode And Why Is It Useful? | ePHOTOzine

My camera practically lives in TAv mode.

**DeepThrob** · 10-15-2019, 07:55 PM - **1 Like**

Originally posted by MarkJerling

My camera practically lives in TAv mode.

Seems likely it will be optimal (mostly) for me too.

**luftfluss** · 10-15-2019, 08:37 PM

Originally posted by Adam

Yup, just switch to TAv on the mode dial. On certain cameras like the K-01, TAv is baked into M mode, but is effectively the same thing.

Yup, that is how I fequently use my K-01. Too bad exposure compensation is not available, though.

HoutHans · 10-16-2019, 01:22 AM

Indeed, no auto ISO in M mode, but TAv works like a charm (on my K-50 at least)

ecostigny · 10-25-2019, 07:39 PM

No auto ISO in M mode on my K-5 either, but TAv mode works great! You just have to remember to set the Range of Automatic Sensitivity Correction first to ensure the camera has enough leeway to make the ISO adjustment to match your shutter speed and aperture settings.

**Roam Redway** · 11-30-2019, 12:09 PM

I'm another who lives in TAv mode. To me, it's like M but with a built-in, hand-held light meter.

xmeda · 12-02-2019, 02:01 AM

Unfortunately we are not able to set MIN/MAX values for anything else but ISO..

It will be nice to be able to set that minimum shutter speed is xxx, maximum is xxx. And that aperture range is xxx to xxx. For any mode P/Tv/Av/TAV/Sv... and minimum shutter speed when flash is engaged.

stevebrot · 12-02-2019, 11:14 AM

Originally posted by xmeda

Unfortunately we are not able to set MIN/MAX values for anything else but ISO..

It will be nice to be able to set that minimum shutter speed is xxx, maximum is xxx. And that aperture range is xxx to xxx. For any mode P/Tv/Av/TAV/Sv... and minimum shutter speed when flash is engaged.

While we are at it, it would be nice to set min/max focus distance as well as min/max for auto-EC.

Steve

(...are we off-topic yet? )

10-15-2019, 05:25 PM	#1
DeepThrob Site Supporter Join Date: Nov 2012 Location: Taos, New Mexico Posts: 295	Auto ISO in M ? I thought i saw an option for Auto ISO in Manual Mode mentioned somewhere but can't seem to find a way to enable it.

11-30-2019, 12:09 PM	#13
Roam Redway Loyal Site Supporter Join Date: Nov 2018 Location: California's Gold Country Posts: 98	Another TAv dweller I'm another who lives in TAv mode. To me, it's like M but with a built-in, hand-held light meter.

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10-15-2019, 05:29 PM	#2
clackers Otis Memorial Pentaxian Join Date: Jul 2013 Location: Melbourne Photos: Albums Posts: 16,397	Well, TAv does that, right, DT?

10-15-2019, 05:35 PM	#3
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by DeepThrob I thought i saw an option for Auto ISO in Manual Mode mentioned somewhere but can't seem to find a way to enable it. I don't think this has been supported on any Pentax camera since before I bought my K10D in 2006. Auto ISO for M modes is disabled on flagship models and defaults over silently to TAv mode on other models. Steve

10-15-2019, 05:49 PM	#4
Sir Nameless Site Supporter Join Date: Jul 2015 Location: Mass a chew sits Photos: Gallery Posts: 574	In case you're asking about manual lenses ("K" or "M") you can have auto-ISO, but the camera will only shoot wide open (in all modes: M, TAv, P, etc). The green button does nothing. With manual ISO, the green button performs a stop-down metering, and the lens will stop down during the exposurer to whatever you have set on the aperture ring. Just tried it with my K-50 and K 50.

10-15-2019, 06:06 PM	#5
ismaelg Loyal Site Supporter Join Date: Apr 2009 Location: Puerto Rico Photos: Gallery Posts: 2,681	In TAV mode you set shutter speed and aperture and the camera chooses ISO. Is that what you mean?

10-15-2019, 06:12 PM - 1 Like	#6
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,595	Originally posted by DeepThrob I thought i saw an option for Auto ISO in Manual Mode mentioned somewhere but can't seem to find a way to enable it. Yup, just switch to TAv on the mode dial. On certain cameras like the K-01, TAv is baked into M mode, but is effectively the same thing.

10-15-2019, 07:27 PM	#7
DeepThrob Site Supporter Join Date: Nov 2012 Location: Taos, New Mexico Posts: 295 Original Poster	Originally posted by clackers Well, TAv does that, right, DT? Well yes, it does. Never used TAv , had to look it up. (Only Pentax has TAv) What Is TAV Mode And Why Is It Useful? \| ePHOTOzine

10-15-2019, 07:33 PM	#8
MarkJerling Moderator Site Supporter Join Date: May 2012 Location: Wairarapa, New Zealand Photos: Gallery \| Albums Posts: 20,406	Originally posted by DeepThrob Well yes, it does. Never used TAv , had to look it up. (Only Pentax has TAv) What Is TAV Mode And Why Is It Useful? \| ePHOTOzine My camera practically lives in TAv mode.

10-15-2019, 07:55 PM - 1 Like	#9
DeepThrob Site Supporter Join Date: Nov 2012 Location: Taos, New Mexico Posts: 295 Original Poster	Originally posted by MarkJerling My camera practically lives in TAv mode. Seems likely it will be optimal (mostly) for me too.

10-15-2019, 08:37 PM	#10
luftfluss Site Supporter Join Date: Jun 2011 Location: NJ Photos: Gallery \| Albums Posts: 11,619	Originally posted by Adam Yup, just switch to TAv on the mode dial. On certain cameras like the K-01, TAv is baked into M mode, but is effectively the same thing. Yup, that is how I fequently use my K-01. Too bad exposure compensation is not available, though.

10-16-2019, 01:22 AM	#11
HoutHans Pentaxian Join Date: Aug 2016 Location: Appingedam Photos: Gallery Posts: 3,119	Indeed, no auto ISO in M mode, but TAv works like a charm (on my K-50 at least)

10-25-2019, 07:39 PM	#12
ecostigny Pentaxian Join Date: Nov 2017 Location: Branford, CT Posts: 561	No auto ISO in M mode on my K-5 either, but TAv mode works great! You just have to remember to set the Range of Automatic Sensitivity Correction first to ensure the camera has enough leeway to make the ISO adjustment to match your shutter speed and aperture settings.

12-02-2019, 02:01 AM	#14
xmeda Senior Member Join Date: Feb 2011 Location: Brno Posts: 295	Unfortunately we are not able to set MIN/MAX values for anything else but ISO.. It will be nice to be able to set that minimum shutter speed is xxx, maximum is xxx. And that aperture range is xxx to xxx. For any mode P/Tv/Av/TAV/Sv... and minimum shutter speed when flash is engaged.

12-02-2019, 11:14 AM	#15
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by xmeda Unfortunately we are not able to set MIN/MAX values for anything else but ISO.. It will be nice to be able to set that minimum shutter speed is xxx, maximum is xxx. And that aperture range is xxx to xxx. For any mode P/Tv/Av/TAV/Sv... and minimum shutter speed when flash is engaged. While we are at it, it would be nice to set min/max focus distance as well as min/max for auto-EC. Steve (...are we off-topic yet? )