KP custom，DFA*85/1.4 CP+ Exhibit

troenaas · 12-26-2019, 03:00 AM

Originally posted by tvdtvdtvd

My quote of 800g was based on Sigma's 20/1.4, which weighs in at 950g. That is much bigger than anything I'd care to own
for a 20mm prime. I can deal with a bit of distortion along the edges of a wide; I call it character.

I use the Olympus Zuiko 18mm f3.5 with a Leitax adapter. 250grams (8.8 oz). It is small, it is compact, it is distortion free, it is a jewel. It is fantastic.

Y.goussyra · 12-26-2019, 04:39 AM

waaw that's a big lens my dream

Zygonyx · 12-26-2019, 09:04 AM

Humm... for me SMC Pentax A 20mm f/2.8 is still the best available compact UWA for K-1.
Though the Sigma DG EX 20 f/1.7 (f/1.8 commercially) holds fiercely the night shooting competition.

But we lost almost completely this thread's sujects

noelpolar · 12-26-2019, 04:14 PM - **3 Likes**

Well... at least KP related.... and a bit silly.... but I'm a 1/3rd way through attempting a custom marri wood grip for my KP...... I think it might just be a bit beyond my wood working skills.... but why let little things like that hold one back.... I have about a meter of Marri (a Western Australian Hardwood).... so may jag a grip that works/fits sometime in 2020 (my pizza oven will probably be fired with failed attempts for awhile).

Last edited by noelpolar; 12-26-2019 at 04:24 PM.

dcpropilot · 12-26-2019, 07:00 PM

Originally posted by noelpolar

Well... at least KP related.... and a bit silly.... but I'm a 1/3rd way through attempting a custom marri wood grip for my KP...... I think it might just be a bit beyond my wood working skills.... but why let little things like that hold one back.... I have about a meter of Marri (a Western Australian Hardwood).... so may jag a grip that works/fits sometime in 2020 (my pizza oven will probably be fired with failed attempts for awhile).

Just curious, using a hardwood is a much heavier option over the stock grips?

reh321 · 12-26-2019, 07:17 PM

Originally posted by dcpropilot

Just curious, using a hardwood is a much heavier option over the stock grips?

Well, the stock grips are very light, so almost anything would add to the weight, but no one has ever claimed this variant to be a working one - maybe they expect most sales to be Collectors.

noelpolar · 12-26-2019, 07:22 PM

Originally posted by dcpropilot

Just curious, using a hardwood is a much heavier option over the stock grips?

No real difference.... there isn't much wood in it.... thats sorta the problem.... the rear is a quite complex hollowed out shape to fit ... I'd be surprised if there was 20 grams extra..... IF I get it to work I'll weigh it properly.... big if on purpose..... because it just bitch slapped me.

Kingman · 12-26-2019, 08:28 PM - **1 Like**

Originally posted by barondla

Thanks for the 20mm info. Agree with a revamped 15. I still use the A 15 3.5 on the K-1.
Thanks,
barondla

How does the A15/3.5 work with the K1. While I understand it's a "cult" Zeiss/Pentax collaboration lens, the performance is very different. Even though it's not highly rated optically, it's supposed to have some unique IQ. I'd be interested to know your experiences. Thanks.

reh321 · 12-26-2019, 08:33 PM - **1 Like**

Originally posted by Kingman

How does the A15/3.5 work with the K1. While I understand it's a "cult" Zeiss/Pentax collaboration lens, the performance is very different. Even though it's not highly rated optically, it's supposed to have some unique IQ. I'd be interested to know your experiences. Thanks.

Adding to your query, Is this 15mm f/3.5 supposed to be rectilinear? and how rectilinear is it really?

**barondla** · 12-26-2019, 11:00 PM

Originally posted by Kingman

How does the A15/3.5 work with the K1. While I understand it's a "cult" Zeiss/Pentax collaboration lens, the performance is very different. Even though it's not highly rated optically, it's supposed to have some unique IQ. I'd be interested to know your experiences. Thanks.

I've had very little time to shoot the A15 f3.5 with the K-1. I did post this example in the K-1 thread: https://www.pentaxforums.com/forums/attachments/190-pentax-k-1/459175d156423...lreddoorpf.jpg. Looks decent to me.

---------- Post added 12-27-19 at 12:08 AM ----------

Originally posted by reh321

Adding to your query, Is this 15mm f/3.5 supposed to be rectilinear? and how rectilinear is it really?

It is rectilinear. Haven't performed tests to see how well it keeps lines straight. It does a better job than the Pentax 10-17 fish zoom!

Thanks,
barondla

redpit · 12-27-2019, 01:02 AM

Originally posted by noelpolar

I'd like a 20mm limited that sat well with the 31/43/77..... size wise and construction wise....

This is also my dream. I wonder why Ricoh/Pentax hasn't already taken advantage of the brilliantly designed and constructed DA* 20-40ltd casing! I would love more lenses that look and feel like this gem but designed for FF...

reh321 · 12-27-2019, 05:47 AM - **1 Like**

Originally posted by redpit

This is also my dream. I wonder why Ricoh/Pentax hasn't already taken advantage of the brilliantly designed and constructed DA* 20-40ltd casing! I would love more lenses that look and feel like this gem but designed for FF...

Don't forget that the modern team is only so large - can work on only so much at a time.

redpit · 12-27-2019, 07:34 AM

Originally posted by reh321

Don't forget that the modern team is only so large - can work on only so much at a time.

I don’t forget that.

I just thought they would release the DFA*50/1.4 for example in a casing that would be unique to Pentax and quite classic/vintage like the 20-40 lens shape. But then Pentax representatives have said they will release more limiteds in the future, so then we might see something different like what I’m discussing about...

thibs · 12-28-2019, 04:53 PM

What about the old MF 'KA-type' Sigma 18/3.5 ? Any feedback?

reh321 · 12-28-2019, 05:53 PM

Originally posted by redpit

I don’t forget that.

I just thought they would release the DFA*50/1.4 for example in a casing that would be unique to Pentax and quite classic/vintage like the 20-40 lens shape. But then Pentax representatives have said they will release more limiteds in the future, so then we might see something different like what I’m discussing about...

I would love it if they would release more "limiteds", but so far all we have seen are the large "perfect" lenses, which I believe contradicts the "limited" 'small is beautiful" concept.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
KP vs K-70 - to KP or not to KP, that is the question	OldChE	Pentax DSLR Discussion	28	11-02-2019 05:29 AM
K3，KP，K1 firmware update	OoKU	Pentax News and Rumors	147	10-20-2018 12:00 AM
Ricoh to Exhibit DFA50 and DA11-18 at CP+	OoKU	Pentax News and Rumors	84	04-13-2018 01:26 AM
中国宾友报道，大家好	xiaoliang	General Talk	2	03-25-2012 06:52 AM
两部K-r，月内新机，全部出现反光板乱跳问题！	anna	Pentax DSLR Discussion	3	09-27-2011 11:35 AM

12-26-2019, 03:00 AM	#691
troenaas Pentaxian Join Date: Apr 2009 Location: Norway Photos: Gallery \| Albums Posts: 668	Originally posted by tvdtvdtvd My quote of 800g was based on Sigma's 20/1.4, which weighs in at 950g. That is much bigger than anything I'd care to own for a 20mm prime. I can deal with a bit of distortion along the edges of a wide; I call it character. I use the Olympus Zuiko 18mm f3.5 with a Leitax adapter. 250grams (8.8 oz). It is small, it is compact, it is distortion free, it is a jewel. It is fantastic.

12-26-2019, 04:39 AM	#692
Y.goussyra Senior Member Join Date: May 2019 Location: Agadir city -Morocco Photos: Gallery Posts: 210	waaw that's a big lens my dream

12-26-2019, 09:04 AM	#693
Zygonyx Pentaxian Join Date: Jun 2011 Location: Ile de France Posts: 4,033	Humm... for me SMC Pentax A 20mm f/2.8 is still the best available compact UWA for K-1. Though the Sigma DG EX 20 f/1.7 (f/1.8 commercially) holds fiercely the night shooting competition. But we lost almost completely this thread's sujects

12-26-2019, 04:14 PM - 3 Likes	#694
noelpolar Veteran Member Join Date: Oct 2013 Location: Goolwa, SA Photos: Gallery Posts: 4,310	Well... at least KP related.... and a bit silly.... but I'm a 1/3rd way through attempting a custom marri wood grip for my KP...... I think it might just be a bit beyond my wood working skills.... but why let little things like that hold one back.... I have about a meter of Marri (a Western Australian Hardwood).... so may jag a grip that works/fits sometime in 2020 (my pizza oven will probably be fired with failed attempts for awhile). Last edited by noelpolar; 12-26-2019 at 04:24 PM.

12-26-2019, 07:00 PM	#695
dcpropilot Veteran Member Join Date: Mar 2010 Location: Vermont Photos: Gallery \| Albums Posts: 941	Originally posted by noelpolar Well... at least KP related.... and a bit silly.... but I'm a 1/3rd way through attempting a custom marri wood grip for my KP...... I think it might just be a bit beyond my wood working skills.... but why let little things like that hold one back.... I have about a meter of Marri (a Western Australian Hardwood).... so may jag a grip that works/fits sometime in 2020 (my pizza oven will probably be fired with failed attempts for awhile). Just curious, using a hardwood is a much heavier option over the stock grips?

12-26-2019, 07:17 PM	#696
reh321 Pentaxian Join Date: Nov 2014 Location: South Bend, IN, USA Photos: Gallery \| Albums Posts: 23,179	Originally posted by dcpropilot Just curious, using a hardwood is a much heavier option over the stock grips? Well, the stock grips are very light, so almost anything would add to the weight, but no one has ever claimed this variant to be a working one - maybe they expect most sales to be Collectors.

12-26-2019, 07:22 PM	#697
noelpolar Veteran Member Join Date: Oct 2013 Location: Goolwa, SA Photos: Gallery Posts: 4,310	Originally posted by dcpropilot Just curious, using a hardwood is a much heavier option over the stock grips? No real difference.... there isn't much wood in it.... thats sorta the problem.... the rear is a quite complex hollowed out shape to fit ... I'd be surprised if there was 20 grams extra..... IF I get it to work I'll weigh it properly.... big if on purpose..... because it just bitch slapped me.

12-26-2019, 08:28 PM - 1 Like	#698
Kingman Senior Member Join Date: Feb 2017 Location: North Texas Posts: 199	Originally posted by barondla Thanks for the 20mm info. Agree with a revamped 15. I still use the A 15 3.5 on the K-1. Thanks, barondla How does the A15/3.5 work with the K1. While I understand it's a "cult" Zeiss/Pentax collaboration lens, the performance is very different. Even though it's not highly rated optically, it's supposed to have some unique IQ. I'd be interested to know your experiences. Thanks.

12-26-2019, 08:33 PM - 1 Like	#699
reh321 Pentaxian Join Date: Nov 2014 Location: South Bend, IN, USA Photos: Gallery \| Albums Posts: 23,179	Originally posted by Kingman How does the A15/3.5 work with the K1. While I understand it's a "cult" Zeiss/Pentax collaboration lens, the performance is very different. Even though it's not highly rated optically, it's supposed to have some unique IQ. I'd be interested to know your experiences. Thanks. Adding to your query, Is this 15mm f/3.5 supposed to be rectilinear? and how rectilinear is it really?

12-26-2019, 11:00 PM	#700
barondla Site Supporter Join Date: Sep 2006 Location: midwest, United States Photos: Gallery \| Albums Posts: 5,714	Originally posted by Kingman How does the A15/3.5 work with the K1. While I understand it's a "cult" Zeiss/Pentax collaboration lens, the performance is very different. Even though it's not highly rated optically, it's supposed to have some unique IQ. I'd be interested to know your experiences. Thanks. I've had very little time to shoot the A15 f3.5 with the K-1. I did post this example in the K-1 thread: https://www.pentaxforums.com/forums/attachments/190-pentax-k-1/459175d156423...lreddoorpf.jpg. Looks decent to me. ---------- Post added 12-27-19 at 12:08 AM ---------- Originally posted by reh321 Adding to your query, Is this 15mm f/3.5 supposed to be rectilinear? and how rectilinear is it really? It is rectilinear. Haven't performed tests to see how well it keeps lines straight. It does a better job than the Pentax 10-17 fish zoom! Thanks, barondla

12-27-2019, 01:02 AM	#701
redpit Pentaxian Join Date: Aug 2013 Location: Greece Photos: Gallery \| Albums Posts: 1,857	Originally posted by noelpolar I'd like a 20mm limited that sat well with the 31/43/77..... size wise and construction wise.... This is also my dream. I wonder why Ricoh/Pentax hasn't already taken advantage of the brilliantly designed and constructed DA* 20-40ltd casing! I would love more lenses that look and feel like this gem but designed for FF...

12-27-2019, 05:47 AM - 1 Like	#702
reh321 Pentaxian Join Date: Nov 2014 Location: South Bend, IN, USA Photos: Gallery \| Albums Posts: 23,179	Originally posted by redpit This is also my dream. I wonder why Ricoh/Pentax hasn't already taken advantage of the brilliantly designed and constructed DA* 20-40ltd casing! I would love more lenses that look and feel like this gem but designed for FF... Don't forget that the modern team is only so large - can work on only so much at a time.

12-27-2019, 07:34 AM	#703
redpit Pentaxian Join Date: Aug 2013 Location: Greece Photos: Gallery \| Albums Posts: 1,857	Originally posted by reh321 Don't forget that the modern team is only so large - can work on only so much at a time. I don’t forget that. I just thought they would release the DFA*50/1.4 for example in a casing that would be unique to Pentax and quite classic/vintage like the 20-40 lens shape. But then Pentax representatives have said they will release more limiteds in the future, so then we might see something different like what I’m discussing about...

12-28-2019, 04:53 PM	#704
thibs Pentaxian Join Date: Jun 2007 Location: Belgium Photos: Albums Posts: 7,001	What about the old MF 'KA-type' Sigma 18/3.5 ? Any feedback?

12-28-2019, 05:53 PM	#705
reh321 Pentaxian Join Date: Nov 2014 Location: South Bend, IN, USA Photos: Gallery \| Albums Posts: 23,179	Originally posted by redpit I don’t forget that. I just thought they would release the DFA*50/1.4 for example in a casing that would be unique to Pentax and quite classic/vintage like the 20-40 lens shape. But then Pentax representatives have said they will release more limiteds in the future, so then we might see something different like what I’m discussing about... I would love it if they would release more "limiteds", but so far all we have seen are the large "perfect" lenses, which I believe contradicts the "limited" 'small is beautiful" concept.