Auto SR function

**Kevin B123** · 01-13-2017, 03:00 PM

In body we can toggle shake reduction on or off, would it be possible to have an auto option?.
When in auto, SR would turn off when the shutter speed exceeded 1.5x the focal length in full frame or 2x the focal length in APS-C.
This would remove one variable in achieving sharp images.
Since the focal length is communicated and the body knows the shutter speed, this could be a firmware change maybe?
Thanks

Bophoto · 01-20-2017, 11:28 AM

I was not comfortable then the button disappeared then K7 or? K5 came.
Of course Pentax can make a auto option, but are SR on at 1/500s with a 50mm lens?
With K1 you can turn SR off with the right knobs, perhaps with K3III too.
Some have suggested that a electric contact in the attachment for a tripod turn off SR. but i guess some have the attachment on all the time on the camera..
Sorry, i don´t now if SR make a inferior picture with a short exposure.
If you take a self timer pics, SR are off and also in others settings.
but i think the idea are good.

madphys · 02-06-2017, 05:39 PM

Expanding on this - a great feature would be an automatic SR shutoff when camera is mounted on a tripod.

**lithedreamer** · 02-07-2017, 06:36 PM

Originally posted by madphys

Expanding on this - a great feature would be an automatic SR shutoff when camera is mounted on a tripod.

Is that really necessary? Setting the self timer, or mirror lock-up, or IR remote mode automatically turns off SR.

bdery · 02-09-2017, 11:26 AM

Originally posted by Bophoto

Some have suggested that a electric contact in the attachment for a tripod turn off SR. but i guess some have the attachment on all the time on the camera..

Originally posted by madphys

Expanding on this - a great feature would be an automatic SR shutoff when camera is mounted on a tripod.

How about when you use a monopod? Or for people (like me) who leave the tripod plate on at all times?

Originally posted by lithedreamer

Is that really necessary? Setting the self timer, or mirror lock-up, or IR remote mode automatically turns off SR.

This.

There are enough way to automatically tuen it off. I rarely, if ever, use a tripod without at least 2 seconds timer.

madphys · 02-09-2017, 12:31 PM

How can a tripod plate influence SR? Didn't catch the connection exactly. Basically all cameras have an accelerator sensor built in it...all that is required is to monitor this signal (few lines in the code). When the camera is actually steady - the SR is useless and can be turned off. It is not like a dire need, but would be a pleasant addition.

bdery · 02-10-2017, 05:55 AM

Originally posted by madphys

How can a tripod plate influence SR? Didn't catch the connection exactly. Basically all cameras have an accelerator sensor built in it...all that is required is to monitor this signal (few lines in the code). When the camera is actually steady - the SR is useless and can be turned off. It is not like a dire need, but would be a pleasant addition.

The plate does not influence SR. Being on a tripod CAN, and has been shown to do so in the past (some algorithms still tried to correct for movement that wasn't there). Manufacturers generally recommend turning it off when using a tripod.

The comment about the tripod plate refers to the idea that SR could be turned off automatically if a plate was attached to the camera. That would create more problems than it would solve.

**Kevin B123** · 02-11-2017, 06:01 AM

Originally posted by Bophoto

I was not comfortable then the button disappeared then K7 or? K5 came.
Of course Pentax can make a auto option, but are SR on at 1/500s with a 50mm lens?
With K1 you can turn SR off with the right knobs, perhaps with K3III too.
Some have suggested that a electric contact in the attachment for a tripod turn off SR. but i guess some have the attachment on all the time on the camera..
Sorry, i don´t now if SR make a inferior picture with a short exposure.
If you take a self timer pics, SR are off and also in others settings.
but i think the idea are good.

There is the menu option and buttons can be configured to turn SR off, so as also mentioned by madphys there is no dire need and it would be a nice to have. I just wanted to limit the upper envelope of SR function for hand held shots. On tripod as also stated, SR is automatically turned off by the timer or MUP functions.
The purpose here is to make implementation as easy as possible for new and existing bodies with just a firmware update, if deemed viable

.

01-13-2017, 03:00 PM	#1
Kevin B123 Loyal Site Supporter Join Date: Jul 2016 Location: Hampshire Photos: Gallery \| Albums Posts: 3,189	Auto SR function In body we can toggle shake reduction on or off, would it be possible to have an auto option?. When in auto, SR would turn off when the shutter speed exceeded 1.5x the focal length in full frame or 2x the focal length in APS-C. This would remove one variable in achieving sharp images. Since the focal length is communicated and the body knows the shutter speed, this could be a firmware change maybe? Thanks

02-11-2017, 06:01 AM	#8
Kevin B123 Loyal Site Supporter Join Date: Jul 2016 Location: Hampshire Photos: Gallery \| Albums Posts: 3,189 Original Poster	Originally posted by Bophoto I was not comfortable then the button disappeared then K7 or? K5 came. Of course Pentax can make a auto option, but are SR on at 1/500s with a 50mm lens? With K1 you can turn SR off with the right knobs, perhaps with K3III too. Some have suggested that a electric contact in the attachment for a tripod turn off SR. but i guess some have the attachment on all the time on the camera.. Sorry, i don´t now if SR make a inferior picture with a short exposure. If you take a self timer pics, SR are off and also in others settings. but i think the idea are good. There is the menu option and buttons can be configured to turn SR off, so as also mentioned by madphys there is no dire need and it would be a nice to have. I just wanted to limit the upper envelope of SR function for hand held shots. On tripod as also stated, SR is automatically turned off by the timer or MUP functions. The purpose here is to make implementation as easy as possible for new and existing bodies with just a firmware update, if deemed viable.

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01-20-2017, 11:28 AM	#2
Bophoto Veteran Member Join Date: Dec 2006 Location: Sweden Photos: Gallery Posts: 429	I was not comfortable then the button disappeared then K7 or? K5 came. Of course Pentax can make a auto option, but are SR on at 1/500s with a 50mm lens? With K1 you can turn SR off with the right knobs, perhaps with K3III too. Some have suggested that a electric contact in the attachment for a tripod turn off SR. but i guess some have the attachment on all the time on the camera.. Sorry, i don´t now if SR make a inferior picture with a short exposure. If you take a self timer pics, SR are off and also in others settings. but i think the idea are good.

02-06-2017, 05:39 PM	#3
madphys Forum Member Join Date: Dec 2007 Location: Riga, Latvia Posts: 98	Expanding on this - a great feature would be an automatic SR shutoff when camera is mounted on a tripod.

02-07-2017, 06:36 PM	#4
lithedreamer Site Supporter Join Date: Sep 2013 Photos: Gallery \| Albums Posts: 1,799	Originally posted by madphys Expanding on this - a great feature would be an automatic SR shutoff when camera is mounted on a tripod. Is that really necessary? Setting the self timer, or mirror lock-up, or IR remote mode automatically turns off SR.

02-09-2017, 11:26 AM	#5
bdery Pentaxian Join Date: Mar 2008 Location: Quebec city, Canada Photos: Gallery Posts: 9,363	Originally posted by Bophoto Some have suggested that a electric contact in the attachment for a tripod turn off SR. but i guess some have the attachment on all the time on the camera.. Originally posted by madphys Expanding on this - a great feature would be an automatic SR shutoff when camera is mounted on a tripod. How about when you use a monopod? Or for people (like me) who leave the tripod plate on at all times? Originally posted by lithedreamer Is that really necessary? Setting the self timer, or mirror lock-up, or IR remote mode automatically turns off SR. This. There are enough way to automatically tuen it off. I rarely, if ever, use a tripod without at least 2 seconds timer.

02-09-2017, 12:31 PM	#6
madphys Forum Member Join Date: Dec 2007 Location: Riga, Latvia Posts: 98	How can a tripod plate influence SR? Didn't catch the connection exactly. Basically all cameras have an accelerator sensor built in it...all that is required is to monitor this signal (few lines in the code). When the camera is actually steady - the SR is useless and can be turned off. It is not like a dire need, but would be a pleasant addition.

02-10-2017, 05:55 AM	#7
bdery Pentaxian Join Date: Mar 2008 Location: Quebec city, Canada Photos: Gallery Posts: 9,363	Originally posted by madphys How can a tripod plate influence SR? Didn't catch the connection exactly. Basically all cameras have an accelerator sensor built in it...all that is required is to monitor this signal (few lines in the code). When the camera is actually steady - the SR is useless and can be turned off. It is not like a dire need, but would be a pleasant addition. The plate does not influence SR. Being on a tripod CAN, and has been shown to do so in the past (some algorithms still tried to correct for movement that wasn't there). Manufacturers generally recommend turning it off when using a tripod. The comment about the tripod plate refers to the idea that SR could be turned off automatically if a plate was attached to the camera. That would create more problems than it would solve.