Who wants a pentax with Tilt-Shift Sensor?

Vitalii · 11-05-2014, 02:05 PM

I really would like if Pentax would work on such a feature.

**lithedreamer** · 11-05-2014, 02:08 PM

What would be different from the composition adjustment feature?

BrianR · 11-05-2014, 02:16 PM

We already have some shift: https://www.pentaxforums.com/forums/115-pentax-k-5/222795-sensor-shift-2.html#post2973944

It can do pretty well for what's basically a 'freebie' feature piggybacking on the SR.

Tilt would be nice but I expect outside the scope of the current SR system.

Vitalii · 11-05-2014, 02:37 PM

Originally posted by lithedreamer

What would be different from the composition adjustment feature?

hardware thing, so maximum quality and no pixel stretching.
although will turn every lense into tilt-shift - more working possibilities with DoF. would be a hell of work, rotating the camera, trying to catch the right angle. but imagine that you can maximize your DoF with any macro lens.

Last edited by Vitalii; 11-05-2014 at 02:46 PM.

Parallax · 11-05-2014, 02:42 PM

How could a lens be focused on a tilted sensor? Lenses focus to a specific distance on a plane perpendicular to the axis of the lens.

Na Horuk · 11-05-2014, 02:46 PM

Shift exists already and its good. Pentax is using the SR pretty well. It gives us Shake Reduction, AA filter, Shift adjustment, Astrotracing.. One more thing they could do is add SR-shift bracketing, to create higher resolution files. Adding tilt to the SR would be much more difficult, though. It would be a technological marvel, so I am all for it, but I won't hold my breath waiting

BrianR · 11-05-2014, 03:06 PM

Originally posted by Parallax

How could a lens be focused on a tilted sensor? Lenses focus to a specific distance on a plane perpendicular to the axis of the lens.

It would be no different from a tilt-lens. You end up tilting the plane of focus to line up with something that isn't perpendicular to the lens axis. Here's a good rundown: Using Tilt-Shift Lenses to Control Depth of Field

Na Horuk · 11-05-2014, 03:13 PM

Originally posted by BrianR

It would be no different from a tilt-lens. You end up tilting the plane of focus to line up with something that isn't perpendicular to the lens axis. Here's a good rundown: Using Tilt-Shift Lenses to Control Depth of Field

No, because the viewfinder would be different, unless it would tilt along with the sensor. It is important which part tilts, if its the lens, then everything from there on will see things tilted - AF module (not that tilt lenses have AF), metering, EVF, OVF. If its just the sensor, it would have to be done in live view. And probably without AF.

stevebrot · 11-05-2014, 03:13 PM

Originally posted by Parallax

How could a lens be focused on a tilted sensor? Lenses focus to a specific distance on a plane perpendicular to the axis of the lens.

It could be made to work in my the same way as the rear movements on a view camera. That being said, maximum utility would be had by mating such a sensor with a tilt/shift lens.

Steve

---------- Post added 11-05-14 at 02:17 PM ----------

Originally posted by BrianR

It would be no different from a tilt-lens.

The difference is subtle, but there is a difference. It is the physical position of the front lens element relative to the subject that drives perspective. Most view cameras allow front swing/tilt/rise/shift while the same movements at the rear are not as common.

Steve

maltfalc · 11-05-2014, 03:19 PM

Originally posted by Parallax

How could a lens be focused on a tilted sensor? Lenses focus to a specific distance on a plane perpendicular to the axis of the lens.

only if your subject is on a single plane perpendicular to the axis of the lens. every object in front of a lens is in focus at some point in three dimensional space behind the lens, simultaneously.

stevebrot · 11-05-2014, 03:19 PM

IMHO, a better solution would be to use one of the available view camera modifications that allow mounting a dSLR body in place of ground glass/film at the rear standard.

Steve

---------- Post added 11-05-14 at 02:23 PM ----------

Originally posted by Vitalii

hardware thing, so maximum quality and no pixel stretching.

Pentax composition adjustment is a "hardware thing". No stretched pixels.

Steve

BrianR · 11-05-2014, 03:35 PM

Originally posted by Na Horuk

No, because the viewfinder would be different, unless it would tilt along with the sensor. It is important which part tilts, if its the lens, then everything from there on will see things tilted - AF module (not that tilt lenses have AF), metering, EVF, OVF. If its just the sensor, it would have to be done in live view. And probably without AF.

Yes of course- same reason the SR shift is only available in live view mode. This part should be obvious:P. I was mostly responding to how the plane of focus tilts, and in no way meant to imply that a tilting sensor and a tilting lens would be identical in use.

Seems like contrast-detect AF would still work though.

Originally posted by stevebrot

The difference is subtle, but there is a difference. It is the physical position of the front lens element relative to the subject that drives perspective. Most view cameras allow front swing/tilt/rise/shift while the same movements at the rear are not as common.

Sure, 'similar idea' would have been a better phrasing on my part

. You could tilt your entire non-tilting lens and camera combo and then use sensor tilt to un-tilt your sensor to get the same effect as a not-tilting your non-tilting sensor but tilting the tilt lens in front of it. Or something like that?

Na Horuk · 11-05-2014, 03:36 PM

I think simply buying a tilt shift lens would be easier

You have some options, Schneider, Arax, Samyang, and then there are the tilt adapters, too..

civiletti · 11-05-2014, 03:36 PM

An slr mirror box reduces the utility of such a sensor, as does lens coverage. A TS lens is a better solution.

stevebrot · 11-05-2014, 03:38 PM

Originally posted by Na Horuk

You have some options, Schneider, Arax, Samyang, and then there are the tilt adapters, too..

Don't forget Hartblei!!! $$$$

Steve

---------- Post added 11-05-14 at 02:40 PM ----------

Originally posted by civiletti

An slr mirror box reduces the utility of such a sensor, as does lens coverage.

Simple...just put said APS-C sensor in a 645Z body!

Steve

11-05-2014, 02:05 PM	#1
Vitalii Senior Member Join Date: May 2014 Posts: 115	Who wants a pentax with Tilt-Shift Sensor? I really would like if Pentax would work on such a feature.

11-05-2014, 03:35 PM	#12
BrianR Veteran Member Join Date: Dec 2010 Location: Ontario Photos: Gallery Posts: 3,332	Originally posted by Na Horuk No, because the viewfinder would be different, unless it would tilt along with the sensor. It is important which part tilts, if its the lens, then everything from there on will see things tilted - AF module (not that tilt lenses have AF), metering, EVF, OVF. If its just the sensor, it would have to be done in live view. And probably without AF. Yes of course- same reason the SR shift is only available in live view mode. This part should be obvious:P. I was mostly responding to how the plane of focus tilts, and in no way meant to imply that a tilting sensor and a tilting lens would be identical in use. Seems like contrast-detect AF would still work though. Originally posted by stevebrot The difference is subtle, but there is a difference. It is the physical position of the front lens element relative to the subject that drives perspective. Most view cameras allow front swing/tilt/rise/shift while the same movements at the rear are not as common. Sure, 'similar idea' would have been a better phrasing on my part. You could tilt your entire non-tilting lens and camera combo and then use sensor tilt to un-tilt your sensor to get the same effect as a not-tilting your non-tilting sensor but tilting the tilt lens in front of it. Or something like that?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Who wants a Pentax "Professional" neck strap?	panoguy	Pentax Camera and Field Accessories	16	11-07-2013 11:09 AM
Pentax K3 with 40 MP via sensor shift	troenaas	Pentax News and Rumors	128	10-07-2013 09:06 PM
Tilt + Shift Option for Pentax!	Scootatheschool1990	Pentax SLR Lens Discussion	9	08-24-2013 11:45 AM
Possible to make a tilt shift lens out of a 50mm on a crop sensor?	Abstract	Pentax SLR Lens Discussion	10	02-07-2011 03:47 PM
Who Wants a 1.3 Cropped Sensor?	benjikan	Pentax DSLR Discussion	75	03-01-2007 05:51 AM

11-05-2014, 02:08 PM	#2
lithedreamer Site Supporter Join Date: Sep 2013 Photos: Gallery \| Albums Posts: 1,799	What would be different from the composition adjustment feature?

11-05-2014, 02:16 PM	#3
BrianR Veteran Member Join Date: Dec 2010 Location: Ontario Photos: Gallery Posts: 3,332	We already have some shift: https://www.pentaxforums.com/forums/115-pentax-k-5/222795-sensor-shift-2.html#post2973944 It can do pretty well for what's basically a 'freebie' feature piggybacking on the SR. Tilt would be nice but I expect outside the scope of the current SR system.

11-05-2014, 02:37 PM	#4
Vitalii Senior Member Join Date: May 2014 Posts: 115 Original Poster	Originally posted by lithedreamer What would be different from the composition adjustment feature? hardware thing, so maximum quality and no pixel stretching. although will turn every lense into tilt-shift - more working possibilities with DoF. would be a hell of work, rotating the camera, trying to catch the right angle. but imagine that you can maximize your DoF with any macro lens. Last edited by Vitalii; 11-05-2014 at 02:46 PM.

11-05-2014, 02:42 PM	#5
Parallax Senior Moderator Loyal Site Supporter Join Date: Apr 2008 Location: South Dakota Photos: Gallery Posts: 19,332	How could a lens be focused on a tilted sensor? Lenses focus to a specific distance on a plane perpendicular to the axis of the lens.

11-05-2014, 02:46 PM	#6
Na Horuk Veteran Member Join Date: Feb 2012 Location: Slovenia, probably Photos: Gallery \| Albums Posts: 11,186	Shift exists already and its good. Pentax is using the SR pretty well. It gives us Shake Reduction, AA filter, Shift adjustment, Astrotracing.. One more thing they could do is add SR-shift bracketing, to create higher resolution files. Adding tilt to the SR would be much more difficult, though. It would be a technological marvel, so I am all for it, but I won't hold my breath waiting

11-05-2014, 03:06 PM	#7
BrianR Veteran Member Join Date: Dec 2010 Location: Ontario Photos: Gallery Posts: 3,332	Originally posted by Parallax How could a lens be focused on a tilted sensor? Lenses focus to a specific distance on a plane perpendicular to the axis of the lens. It would be no different from a tilt-lens. You end up tilting the plane of focus to line up with something that isn't perpendicular to the lens axis. Here's a good rundown: Using Tilt-Shift Lenses to Control Depth of Field

11-05-2014, 03:13 PM	#8
Na Horuk Veteran Member Join Date: Feb 2012 Location: Slovenia, probably Photos: Gallery \| Albums Posts: 11,186	Originally posted by BrianR It would be no different from a tilt-lens. You end up tilting the plane of focus to line up with something that isn't perpendicular to the lens axis. Here's a good rundown: Using Tilt-Shift Lenses to Control Depth of Field No, because the viewfinder would be different, unless it would tilt along with the sensor. It is important which part tilts, if its the lens, then everything from there on will see things tilted - AF module (not that tilt lenses have AF), metering, EVF, OVF. If its just the sensor, it would have to be done in live view. And probably without AF.

11-05-2014, 03:13 PM	#9
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by Parallax How could a lens be focused on a tilted sensor? Lenses focus to a specific distance on a plane perpendicular to the axis of the lens. It could be made to work in my the same way as the rear movements on a view camera. That being said, maximum utility would be had by mating such a sensor with a tilt/shift lens. Steve ---------- Post added 11-05-14 at 02:17 PM ---------- Originally posted by BrianR It would be no different from a tilt-lens. The difference is subtle, but there is a difference. It is the physical position of the front lens element relative to the subject that drives perspective. Most view cameras allow front swing/tilt/rise/shift while the same movements at the rear are not as common. Steve

11-05-2014, 03:19 PM	#10
maltfalc Veteran Member Join Date: May 2010 Location: Winnipeg Photos: Albums Posts: 396	Originally posted by Parallax How could a lens be focused on a tilted sensor? Lenses focus to a specific distance on a plane perpendicular to the axis of the lens. only if your subject is on a single plane perpendicular to the axis of the lens. every object in front of a lens is in focus at some point in three dimensional space behind the lens, simultaneously.

11-05-2014, 03:19 PM	#11
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	IMHO, a better solution would be to use one of the available view camera modifications that allow mounting a dSLR body in place of ground glass/film at the rear standard. Steve ---------- Post added 11-05-14 at 02:23 PM ---------- Originally posted by Vitalii hardware thing, so maximum quality and no pixel stretching. Pentax composition adjustment is a "hardware thing". No stretched pixels. Steve

11-05-2014, 03:36 PM	#13
Na Horuk Veteran Member Join Date: Feb 2012 Location: Slovenia, probably Photos: Gallery \| Albums Posts: 11,186	I think simply buying a tilt shift lens would be easier You have some options, Schneider, Arax, Samyang, and then there are the tilt adapters, too..

11-05-2014, 03:36 PM	#14
civiletti Pentaxian Join Date: Jul 2010 Location: Oregon Photos: Albums Posts: 1,435	An slr mirror box reduces the utility of such a sensor, as does lens coverage. A TS lens is a better solution.

11-05-2014, 03:38 PM	#15
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by Na Horuk You have some options, Schneider, Arax, Samyang, and then there are the tilt adapters, too.. Don't forget Hartblei!!! $$$$ Steve ---------- Post added 11-05-14 at 02:40 PM ---------- Originally posted by civiletti An slr mirror box reduces the utility of such a sensor, as does lens coverage. Simple...just put said APS-C sensor in a 645Z body! Steve