Pentax K-3 test images with AA filter on and off

hkiran1 · 10-30-2013, 03:22 AM

Pentax K-3 Review: First Shots - Samples

aurele · 10-30-2013, 03:30 AM

With the lens @F8 i don't think any moire can appear, can it ?

gazonk · 10-30-2013, 04:08 AM

Originally posted by aurele

With the lens @F8 i don't think any moire can appear, can it ?

I think they use the Sigma 70mm macro, I bet that lens still resolves very well at f/8.

EDIT: And in fact there IS moire in the AA0 sample and less in the AA1 and AA2 samples.

**baro-nite** · 10-30-2013, 04:14 AM

You have to go down to the last set of shots to find the AA filter test, and these are at f/5.6. I'm just now downloading them. They're the ones with file names ending AA0, AA1, and AA2.

[Edit]: samples:

AA setting 0:

View Picture EXIF

Name: K3hVFA_AA0.jpg
Views: 3499
Size: 22.6 KB

AA setting 1:

View Picture EXIF

Name: K3hVFA_AA1.jpg
Views: 3407
Size: 20.7 KB

AA setting 2:

View Picture EXIF

Name: K3hVFA_AA2.jpg
Views: 3329
Size: 18.9 KB

Last edited by baro-nite; 10-30-2013 at 04:27 AM. Reason: added photos

**baro-nite** · 10-30-2013, 04:29 AM

Another sample:

AA setting 0:
Name: K3hVFA_AA0_2.jpg
Views: 3259
Size: 15.7 KB

AA setting 1:
Name: K3hVFA_AA1_2.jpg
Views: 3261
Size: 15.3 KB

AA setting 2:
Name: K3hVFA_AA2_2.jpg
Views: 3200
Size: 14.8 KB

PePe · 10-30-2013, 04:36 AM

There is less moire in AA1 and AA2 compared to AA0. But is there anything about the AA-filter settings in the EXIF-data?

Paul the Sunman · 10-30-2013, 04:54 AM

Looks good. The AA filter is quite effective, without too much loss in resolution. Very clean with the AA turned off (apart from the deliberately provoked moiré). Interested to see how the AA effectiveness reduces as the exposure passes through 1/1000 sec.

**baro-nite** · 10-30-2013, 04:55 AM

Originally posted by PePe

But is there anything about the AA-filter settings in the EXIF-data?

It's under ShakeReduction. AA setting 1 has a value of Unknown (12). AA setting 2 has a value of Unknown (20).

PePe · 10-30-2013, 05:12 AM

Originally posted by baro-nite

It's under ShakeReduction. AA setting 1 has a value of Unknown (12). AA setting 2 has a value of Unknown (20).

Thanks. They put it in code

D1N0 · 10-30-2013, 05:25 AM

I see more sharpness compared to the K-5 but not better high iso. In fact high iso is about on par with the nex-7. I think it must be the same chip.

noVICE · 10-30-2013, 06:02 AM

Originally posted by D1N0

I see more sharpness compared to the K-5 but not better high iso. In fact high iso is about on par with the nex-7. I think it must be the same chip.

From looking at the shots from K5iiS and K3 at ISO 800 with no noise reduction it appears that the K3 handles noise much better than the K5iiS. Either way, they beat the pants off my K7.

EDIT: and at ISO 3200

shaX 07 · 10-30-2013, 06:31 AM

Originally posted by baro-nite

It's under ShakeReduction. AA setting 1 has a value of Unknown (12). AA setting 2 has a value of Unknown (20).

So does AA0 mean the AA filter is off? And what's the difference between AA1 and AA2?

**baro-nite** · 10-30-2013, 06:41 AM

Yes, AA0 is off. AA1 and AA2 are the two different blur settings; as you can see from the samples, AA2 is the stronger setting.

panoguy · 10-30-2013, 07:02 AM - **1 Like**

Originally posted by baro-nite

Yes, AA0 is off. AA1 and AA2 are the two different blur settings; as you can see from the samples, AA2 is the stronger setting.

From Dave Etchell's very technical article on Ricoh's variable-AA filter, it seems that one mode is a linear oscillation, and the other (presumably the stronger) is a circular oscillation. Personally, I'm hoping there is an "AA bracketing" function for those frequent times when you just don't know whether there will be moiré visible in the shot!

Fl_Gulfer · 10-30-2013, 07:27 AM

I just read the whole Overview and this camera is going to be a game changer, I can't believe all the improvements from the K-5.

10-30-2013, 03:22 AM	#1
hkiran1 New Member Join Date: Aug 2012 Location: Kerala Photos: Albums Posts: 16	Pentax K-3 test images with AA filter on and off Pentax K-3 Review: First Shots - Samples

10-30-2013, 04:29 AM	#5
baro-nite Loyal Site Supporter Join Date: Aug 2011 Location: North Carolina, USA Photos: Gallery \| Albums Posts: 5,294	Another sample: AA setting 0: AA setting 1: AA setting 2:

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10-30-2013, 03:30 AM	#2
aurele Veteran Member Join Date: Jan 2011 Location: Paris, France Photos: Albums Posts: 3,217	With the lens @F8 i don't think any moire can appear, can it ?

10-30-2013, 04:08 AM	#3
gazonk Pentaxian Join Date: Feb 2009 Location: Oslo area, Norway Photos: Gallery \| Albums Posts: 3,746	Originally posted by aurele With the lens @F8 i don't think any moire can appear, can it ? I think they use the Sigma 70mm macro, I bet that lens still resolves very well at f/8. EDIT: And in fact there IS moire in the AA0 sample and less in the AA1 and AA2 samples.

10-30-2013, 04:36 AM	#6
PePe Pentaxian Join Date: Nov 2007 Location: Helsinki, Finland Photos: Gallery \| Albums Posts: 597	There is less moire in AA1 and AA2 compared to AA0. But is there anything about the AA-filter settings in the EXIF-data?

10-30-2013, 04:54 AM	#7
Paul the Sunman Pentaxian Join Date: Aug 2011 Location: Melbourne Photos: Gallery Posts: 4,843	Looks good. The AA filter is quite effective, without too much loss in resolution. Very clean with the AA turned off (apart from the deliberately provoked moiré). Interested to see how the AA effectiveness reduces as the exposure passes through 1/1000 sec.

10-30-2013, 04:55 AM	#8
baro-nite Loyal Site Supporter Join Date: Aug 2011 Location: North Carolina, USA Photos: Gallery \| Albums Posts: 5,294	Originally posted by PePe But is there anything about the AA-filter settings in the EXIF-data? It's under ShakeReduction. AA setting 1 has a value of Unknown (12). AA setting 2 has a value of Unknown (20).

10-30-2013, 05:12 AM	#9
PePe Pentaxian Join Date: Nov 2007 Location: Helsinki, Finland Photos: Gallery \| Albums Posts: 597	Originally posted by baro-nite It's under ShakeReduction. AA setting 1 has a value of Unknown (12). AA setting 2 has a value of Unknown (20). Thanks. They put it in code

10-30-2013, 05:25 AM	#10
D1N0 Pentaxian Join Date: May 2012 Location: --- Photos: Gallery Posts: 6,802	I see more sharpness compared to the K-5 but not better high iso. In fact high iso is about on par with the nex-7. I think it must be the same chip.

10-30-2013, 06:02 AM	#11
noVICE Senior Member Join Date: Aug 2009 Location: Brisbane Photos: Gallery Posts: 164	Originally posted by D1N0 I see more sharpness compared to the K-5 but not better high iso. In fact high iso is about on par with the nex-7. I think it must be the same chip. From looking at the shots from K5iiS and K3 at ISO 800 with no noise reduction it appears that the K3 handles noise much better than the K5iiS. Either way, they beat the pants off my K7. EDIT: and at ISO 3200

10-30-2013, 06:31 AM	#12
shaX 07 Veteran Member Join Date: Sep 2013 Location: Maine Posts: 331	Originally posted by baro-nite It's under ShakeReduction. AA setting 1 has a value of Unknown (12). AA setting 2 has a value of Unknown (20). So does AA0 mean the AA filter is off? And what's the difference between AA1 and AA2?

10-30-2013, 06:41 AM	#13
baro-nite Loyal Site Supporter Join Date: Aug 2011 Location: North Carolina, USA Photos: Gallery \| Albums Posts: 5,294	Yes, AA0 is off. AA1 and AA2 are the two different blur settings; as you can see from the samples, AA2 is the stronger setting.

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10-30-2013, 07:02 AM - 1 Like	#14
panoguy Pentaxian Join Date: Sep 2007 Location: Washington, D.C. Photos: Gallery \| Albums Posts: 3,327	Originally posted by baro-nite Yes, AA0 is off. AA1 and AA2 are the two different blur settings; as you can see from the samples, AA2 is the stronger setting. From Dave Etchell's very technical article on Ricoh's variable-AA filter, it seems that one mode is a linear oscillation, and the other (presumably the stronger) is a circular oscillation. Personally, I'm hoping there is an "AA bracketing" function for those frequent times when you just don't know whether there will be moiré visible in the shot!

10-30-2013, 07:27 AM	#15
Fl_Gulfer Veteran Member Join Date: Jul 2007 Location: Florida Gulfer Photos: Albums Posts: 3,054	I just read the whole Overview and this camera is going to be a game changer, I can't believe all the improvements from the K-5.