Lenses that work with K-7's corrections Q

LeDave · 12-04-2009, 12:15 PM

With my FA 43 f/1.9 on my K-7, you cannot enable distortion correction and chromatic aberration correction, also I'm not sure if it limits anything else.

So I have a bit of a question, what kind of lenses do and do not work with the K-7's distortion and chromatic aberration correction software? Is it full frame lenses, what is it exactly? Also will third party lenses work with the K-7's corrections?

audiobomber · 12-04-2009, 12:32 PM

Originally posted by LeDave

With my FA 43 f/1.9 on my K-7, you cannot enable distortion correction and chromatic aberration correction, also I'm not sure if it limits anything else.

So I have a bit of a question, what kind of lenses do and do not work with the K-7's distortion and chromatic aberration correction software? Is it full frame lenses, what is it exactly? Also will third party lenses work with the K-7's corrections?

Not compatible with 3-rd party lenses. From Pentax Imaging:
A Lens Correction function adjusts for Distortion and Lateral Chromatic Aberrations, allowing you to maximize your image quality for every digital lens.*

"*Compatible with D FA, DA, DA Limited and DA Star lenses. Distortion correction is not applied to the DA 10-17mm Fisheye lens."

netuser · 12-04-2009, 02:13 PM

I think tamron 17-50 and 70-200 2.8 can use the k-7 features.

audiobomber · 12-04-2009, 02:36 PM

Originally posted by netuser

I think tamron 17-50 and 70-200 2.8 can use the k-7 features.

I'd like to see a link to some proof, because nothing I've read would agree with that.

netuser · 12-04-2009, 02:51 PM

Originally posted by audiobomber

I'd like to see a link to some proof, because nothing I've read would agree with that.

Link ? not needed

I just tried with tamron 17-50 2.8 and yes, it uses the k-7 features (distortion and chromatic aberration correction software). Also highlight and shadow.

audiobomber · 12-04-2009, 03:24 PM

Originally posted by netuser

Link ? not needed

I just tried with tamron 17-50 2.8 and yes, it uses the k-7 features (distortion and chromatic aberration correction software). Also highlight and shadow.

Don't mean to be a bother, but would you post a photo showing an uncorrected and corrected image? Some people reported that a Sigma lens was recognized but no corrections actually applied. I would think the barrel distortion at 17mm would need some pretty heavy correction.

netuser · 12-04-2009, 04:00 PM

I just took a image againt my tv lol. I'm not an expert but FA lenses I have etc I can't select the features, with tamron I can.

audiobomber · 12-04-2009, 05:24 PM

Originally posted by netuser

I just took a image againt my tv lol. I'm not an expert but FA lenses I have etc I can't select the features, with tamron I can.

That's what I've heard, with off-brand digital lenses the camera shows the correction feature, but doesn't actually do any processing.

kittykat46 · 12-04-2009, 07:07 PM

Originally posted by LeDave

So I have a bit of a question, what kind of lenses do and do not work with the K-7's distortion and chromatic aberration correction software? Is it full frame lenses, what is it exactly? Also will third party lenses work with the K-7's corrections?

I think Pentax made a clear statement on it a while back, but I can't find the link.

Distortion and Chromatic Aberration correction only works with DA/DA* and DFA lenses. The feature needs some electronic data from the lens which only these newer lenses have. The feature cannot be supported with FA lenses.

WerTicus · 12-04-2009, 08:11 PM

the Kx supports it too I see.

12-04-2009, 12:15 PM	#1
LeDave Veteran Member Join Date: Jun 2009 Location: Minneapolis - St. Paul Photos: Gallery Posts: 3,067	Lenses that work with K-7's corrections Q With my FA 43 f/1.9 on my K-7, you cannot enable distortion correction and chromatic aberration correction, also I'm not sure if it limits anything else. So I have a bit of a question, what kind of lenses do and do not work with the K-7's distortion and chromatic aberration correction software? Is it full frame lenses, what is it exactly? Also will third party lenses work with the K-7's corrections?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Which prime lenses would work well?	Vantage-Point	Photographic Technique	9	11-08-2010 12:38 PM
Will these lenses work with DSLR?	trk105	Troubleshooting and Beginner Help	10	06-14-2009 07:05 PM
Various old lenses, will they work?	ChrisC	Pentax SLR Lens Discussion	11	06-26-2008 07:14 PM
Will these lenses work with...	rmtagg	Pentax SLR Lens Discussion	7	03-14-2008 01:05 PM
Does pentax still work on A lenses?	barondla	Pentax SLR Lens Discussion	1	11-20-2007 04:56 PM

12-04-2009, 12:32 PM	#2
audiobomber Veteran Member Join Date: May 2008 Location: Sudbury, Ontario Photos: Albums Posts: 6,806	Originally posted by LeDave With my FA 43 f/1.9 on my K-7, you cannot enable distortion correction and chromatic aberration correction, also I'm not sure if it limits anything else. So I have a bit of a question, what kind of lenses do and do not work with the K-7's distortion and chromatic aberration correction software? Is it full frame lenses, what is it exactly? Also will third party lenses work with the K-7's corrections? Not compatible with 3-rd party lenses. From Pentax Imaging: A Lens Correction function adjusts for Distortion and Lateral Chromatic Aberrations, allowing you to maximize your image quality for every digital lens.* "*Compatible with D FA, DA, DA Limited and DA Star lenses. Distortion correction is not applied to the DA 10-17mm Fisheye lens."

12-04-2009, 02:13 PM	#3
netuser Veteran Member Join Date: Oct 2008 Location: Azores Islands, Portugal Photos: Gallery Posts: 2,236	I think tamron 17-50 and 70-200 2.8 can use the k-7 features.

12-04-2009, 02:36 PM	#4
audiobomber Veteran Member Join Date: May 2008 Location: Sudbury, Ontario Photos: Albums Posts: 6,806	Originally posted by netuser I think tamron 17-50 and 70-200 2.8 can use the k-7 features. I'd like to see a link to some proof, because nothing I've read would agree with that.

12-04-2009, 02:51 PM	#5
netuser Veteran Member Join Date: Oct 2008 Location: Azores Islands, Portugal Photos: Gallery Posts: 2,236	Originally posted by audiobomber I'd like to see a link to some proof, because nothing I've read would agree with that. Link ? not needed I just tried with tamron 17-50 2.8 and yes, it uses the k-7 features (distortion and chromatic aberration correction software). Also highlight and shadow.

12-04-2009, 03:24 PM	#6
audiobomber Veteran Member Join Date: May 2008 Location: Sudbury, Ontario Photos: Albums Posts: 6,806	Originally posted by netuser Link ? not needed I just tried with tamron 17-50 2.8 and yes, it uses the k-7 features (distortion and chromatic aberration correction software). Also highlight and shadow. Don't mean to be a bother, but would you post a photo showing an uncorrected and corrected image? Some people reported that a Sigma lens was recognized but no corrections actually applied. I would think the barrel distortion at 17mm would need some pretty heavy correction.

12-04-2009, 04:00 PM	#7
netuser Veteran Member Join Date: Oct 2008 Location: Azores Islands, Portugal Photos: Gallery Posts: 2,236	I just took a image againt my tv lol. I'm not an expert but FA lenses I have etc I can't select the features, with tamron I can.

12-04-2009, 05:24 PM	#8
audiobomber Veteran Member Join Date: May 2008 Location: Sudbury, Ontario Photos: Albums Posts: 6,806	Originally posted by netuser I just took a image againt my tv lol. I'm not an expert but FA lenses I have etc I can't select the features, with tamron I can. That's what I've heard, with off-brand digital lenses the camera shows the correction feature, but doesn't actually do any processing.

12-04-2009, 07:07 PM	#9
kittykat46 Veteran Member Join Date: Dec 2007 Posts: 923	Originally posted by LeDave So I have a bit of a question, what kind of lenses do and do not work with the K-7's distortion and chromatic aberration correction software? Is it full frame lenses, what is it exactly? Also will third party lenses work with the K-7's corrections? I think Pentax made a clear statement on it a while back, but I can't find the link. Distortion and Chromatic Aberration correction only works with DA/DA* and DFA lenses. The feature needs some electronic data from the lens which only these newer lenses have. The feature cannot be supported with FA lenses.

12-04-2009, 08:11 PM	#10
WerTicus Veteran Member Join Date: Mar 2009 Location: Perth Australia Photos: Albums Posts: 1,514	the Kx supports it too I see.

Thread Tools	Search this Thread
	Search this Thread: Advanced Search