HD PENTAX-DA 20-40mm F2.8-4 Limited

PJ219 · 07-11-2021, 08:22 PM

Wow truly amazing photos. You captured some real subtle differences in coloring of the sky.
Nice work!

Jonathan Mac · 07-12-2021, 02:41 AM

Originally posted by Cerebum

I am buying it off Sandy Hancock so I know it is a lovely copy. I generally do calibration mid zoom, would you recommend both ends? To do that presumably you calibrate one then check it at the other, yes?

My copy focuses perfectly wide open at 20mm but is slightly off at 40mm. TBH I think I rarely use the in-between focal lengths. Using live-view it focuses perfectly of course.

I plan to adjust at 40mm to get it perfect and see what adjustment it needs, then see how it does at 20mm. After that see if I can find a setting which will do for both.

**Cerebum** · 07-12-2021, 02:46 AM

Originally posted by Jonathan Mac

My copy focuses perfectly wide open at 20mm but is slightly off at 40mm. TBH I think I rarely use the in-between focal lengths. Using live-view it focuses perfectly of course.

I plan to adjust at 40mm to get it perfect and see what adjustment it needs, then see how it does at 20mm. After that see if I can find a setting which will do for both.

Thanks, I will do that. The tracking says it is awaiting payment at the depot, so, as soon as the letter arrives I will get it paid and finally have the lens at the top of my wish list

**manishved** · 07-18-2021, 06:21 AM

the 20-40 is so underrated....I love it.

**Cerebum** · 07-19-2021, 01:46 AM - **8 Likes**

My copy arrived midweek and it is pristine. I took it out and calibrated it, +5 was pin sharp at both ends of the range (I did 20mm first then found 40mm was the same). So, time for some testing. I had a walk round town then visited an ancient monument. What a brilliant lens! I will be doing a Sic with it next month but first impressions are incredible!

Jonathan Mac · 07-21-2021, 01:49 PM

Originally posted by Cerebum

My copy arrived midweek and it is pristine. I took it out and calibrated it, +5 was pin sharp at both ends of the range (I did 20mm first then found 40mm was the same). So, time for some testing. I had a walk round town then visited an ancient monument. What a brilliant lens! I will be doing a Sic with it next month but first impressions are incredible!

Your getting very nice results from it already.

**Cerebum** · 07-21-2021, 02:23 PM

Originally posted by Jonathan Mac

Your getting very nice results from it already.

Thanks

I can't wait for August

**ramseybuckeye** · 07-24-2022, 10:35 AM - **4 Likes**

**ramseybuckeye** · 01-12-2023, 07:17 PM - **4 Likes**

This first one is a three image merge done in Lightroom.

**c.a.m** · 01-12-2023, 07:48 PM - **5 Likes**

A recent quick photo outing with my K-3 Mark III and my often-used DA 20-40mm Limited. Lovely little lens!

RAW files developed in DxO PhotoLab 6 and finished in Affinity Photo.

- Craig

Jonathan Mac · 01-13-2023, 07:18 AM

Originally posted by ramseybuckeye

A fantastic set, number four is the best I think.

**ramseybuckeye** · 01-13-2023, 11:51 AM

Originally posted by Jonathan Mac

A fantastic set, number four is the best I think.

Thanks, I like number four myself, I was happy to start off the new year with that morning light and fog combination.

**ramseybuckeye** · 01-20-2023, 08:56 PM - **1 Like**

01-12-2023, 07:17 PM - 4 Likes	#54
ramseybuckeye Site Supporter Join Date: Apr 2009 Location: Hampstead, NC Photos: Gallery Posts: 17,295 Original Poster	This first one is a three image merge done in Lightroom. Last edited by ramseybuckeye; 01-13-2023 at 02:18 PM.

01-12-2023, 07:48 PM - 5 Likes	#55
c.a.m Site Supporter Join Date: Jan 2013 Location: Ottawa, Canada Photos: Gallery \| Albums Posts: 4,192	A little bit of Winter A recent quick photo outing with my K-3 Mark III and my often-used DA 20-40mm Limited. Lovely little lens! RAW files developed in DxO PhotoLab 6 and finished in Affinity Photo. - Craig

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07-11-2021, 08:22 PM	#46
PJ219 New Member Join Date: Jun 2021 Location: Harrison NY Posts: 21	Wow truly amazing photos. You captured some real subtle differences in coloring of the sky. Nice work!

07-12-2021, 02:41 AM	#47
Jonathan Mac Pentaxian Join Date: Apr 2009 Location: Madrid, Spain Posts: 10,911	Originally posted by Cerebum I am buying it off Sandy Hancock so I know it is a lovely copy. I generally do calibration mid zoom, would you recommend both ends? To do that presumably you calibrate one then check it at the other, yes? My copy focuses perfectly wide open at 20mm but is slightly off at 40mm. TBH I think I rarely use the in-between focal lengths. Using live-view it focuses perfectly of course. I plan to adjust at 40mm to get it perfect and see what adjustment it needs, then see how it does at 20mm. After that see if I can find a setting which will do for both.

07-12-2021, 02:46 AM	#48
Cerebum Site Supporter Join Date: Oct 2017 Location: Lancaster Photos: Gallery Posts: 3,829	Originally posted by Jonathan Mac My copy focuses perfectly wide open at 20mm but is slightly off at 40mm. TBH I think I rarely use the in-between focal lengths. Using live-view it focuses perfectly of course. I plan to adjust at 40mm to get it perfect and see what adjustment it needs, then see how it does at 20mm. After that see if I can find a setting which will do for both. Thanks, I will do that. The tracking says it is awaiting payment at the depot, so, as soon as the letter arrives I will get it paid and finally have the lens at the top of my wish list

07-18-2021, 06:21 AM	#49
manishved Loyal Site Supporter Join Date: Mar 2008 Location: N. Calif Photos: Gallery \| Albums Posts: 3,652	the 20-40 is so underrated....I love it.

07-19-2021, 01:46 AM - 8 Likes	#50
Cerebum Site Supporter Join Date: Oct 2017 Location: Lancaster Photos: Gallery Posts: 3,829	My copy arrived midweek and it is pristine. I took it out and calibrated it, +5 was pin sharp at both ends of the range (I did 20mm first then found 40mm was the same). So, time for some testing. I had a walk round town then visited an ancient monument. What a brilliant lens! I will be doing a Sic with it next month but first impressions are incredible!

07-21-2021, 01:49 PM	#51
Jonathan Mac Pentaxian Join Date: Apr 2009 Location: Madrid, Spain Posts: 10,911	Originally posted by Cerebum My copy arrived midweek and it is pristine. I took it out and calibrated it, +5 was pin sharp at both ends of the range (I did 20mm first then found 40mm was the same). So, time for some testing. I had a walk round town then visited an ancient monument. What a brilliant lens! I will be doing a Sic with it next month but first impressions are incredible! Your getting very nice results from it already.

07-21-2021, 02:23 PM	#52
Cerebum Site Supporter Join Date: Oct 2017 Location: Lancaster Photos: Gallery Posts: 3,829	Originally posted by Jonathan Mac Your getting very nice results from it already. Thanks I can't wait for August

07-24-2022, 10:35 AM - 4 Likes	#53
ramseybuckeye Site Supporter Join Date: Apr 2009 Location: Hampstead, NC Photos: Gallery Posts: 17,295 Original Poster

01-13-2023, 07:18 AM	#56
Jonathan Mac Pentaxian Join Date: Apr 2009 Location: Madrid, Spain Posts: 10,911	Originally posted by ramseybuckeye A fantastic set, number four is the best I think.

01-13-2023, 11:51 AM	#57
ramseybuckeye Site Supporter Join Date: Apr 2009 Location: Hampstead, NC Photos: Gallery Posts: 17,295 Original Poster	Originally posted by Jonathan Mac A fantastic set, number four is the best I think. Thanks, I like number four myself, I was happy to start off the new year with that morning light and fog combination.

01-20-2023, 08:56 PM - 1 Like	#58
ramseybuckeye Site Supporter Join Date: Apr 2009 Location: Hampstead, NC Photos: Gallery Posts: 17,295 Original Poster