11-18 and revamped 35mm F2 on january 31?

Gianclaudio · 02-17-2019, 09:53 AM - **4 Likes**

Originally posted by clackers

?

Comparing 11mm f4 to 12mm f4, which is the most direct possible from these graphs, the Sagitall contrast is 90 vs 80 at the edge, and the same microcontrast (probably represents best what you mean by 'resolution' - fine detail) is about 45 versus about 25. 15-20 might be considered the lowest acceptable score.

That the SvM track so closely means astigmatism is really minimized, so it should mean superior bokeh and is also an exciting prospect as an Astro lens … helped that it is also f2.8, not f4.

Now, the 12-24 … I own it. And it's such a good lens I've used it on the K-1. But the DA* is clearly better.

I really, REALLY admire your patience dealing with speculative and baseless opinions.

Last edited by BigMackCam; 02-17-2019 at 12:31 PM. Reason: Keeping it friendly

**clackers** · 02-17-2019, 08:02 PM - **3 Likes**

Originally posted by Gianclaudio

I really, REALLY admire your patience dealing with speculative and baseless opinions.

Thanks, Gianclaudio … I won't even ask Ogl to interpolate by looking at the graphs what the DA* does at 12mm instead of 11mm. No point.

He honestly thought a few weeks ago that MTF was something you only did with film, not digital...

JPT · 02-19-2019, 02:35 AM - **2 Likes**

Yaotomi has a report on the HD FA 35 f2 now.
?????? HD PENTAX-FA35mm F2 ???????? ? ?? ??????????? - ????

It’s a pity that it’s so overcast in Japan this week. You can’t really see whether the new coating helps with the sun or high contrast situations from this.

Reed · 02-19-2019, 03:32 AM

Originally posted by JPT

Yaotomi has a report on the HD FA 35 f2 now.
?????? HD PENTAX-FA35mm F2 ???????? ? ?? ??????????? - ????

It’s a pity that it’s so overcast in Japan this week. You can’t really see whether the new coating helps with the sun or high contrast situations from this.

All of that pictures seems a bit out of focus for me.

superdave · 02-19-2019, 06:55 AM

Originally posted by Reed

All of that pictures seems a bit out of focus for me.

In fact all the pictures was shoot at f/2.8 or less, and old lenses are not good wide open.

Reed · 02-19-2019, 07:09 AM

Originally posted by superdave

In fact all the pictures was shoot at f/2.8 or less, and old lenses are not good wide open.

Third one is marked as F8 shot, and well, its not focused properly.

Mistral75 · 02-21-2019, 10:27 AM

Firmware updates for K-1 (Version 1.51) and K-1 II (Version 1.03).

Originally posted by Ricoh Imaging:

Optimized performance when attaching new lens HD PENTAX-DA*11-18mmF2.8ED DC AW

I find it odd to begin with the two 24x36 cameras to optimize the way Pentax cameras perform with an APS-C lens!

Digital Camera Utility 5 is updated too (Version 5.8.2)

Originally posted by Ricoh Imaging:

Added new lens name for [HD PENTAX- FA 35mm F2]

+ various bug fixes.

MMVIII · 02-21-2019, 10:59 AM

Originally posted by Mistral75

Firmware updates for K-1 (Version 1.51) and K-1 II (Version 1.03).

I find it odd to begin with the two 24x36 cameras to optimize the way Pentax cameras perform with an APS-C lens!

Digital Camera Utility 5 is updated too (Version 5.8.2)

+ various bug fixes.

Agree on the oddness. But they have to wait with the APS-C cameras to not prematurely expose the new top model

Mistral75 · 02-21-2019, 11:17 AM - **1 Like**

I presume any new APS-C Pentax DSLR would natively include 'optimized performance' with the HD Pentax-DA★ 11-18mm f/2.8 ED DC AW, therefore its announcement, or lack thereof, shouldn't interfere with the K-70, KP and K-3 II (for instance) enjoying an updated firmware.

Mistral75 · 03-06-2019, 04:11 AM

A decentred copy in the first batch delivered to France:

HD Pentax-DA★ 11-18 mm f/2,8

BarneyL · 03-06-2019, 09:59 AM

Way to go, Ricoh... :-\

Kunzite · 03-06-2019, 10:31 AM - **1 Like**

No matter how much you invest into production and QC, you can't have a zero defect rate. Especially factoring in a rough shipping, maybe mishandling in the shop.
Is this a common occurrence or not? This is the question...

I'm also a bit concerned about the lens being exchanged by the dealer - would they attempt to re-sell it?
On a Romanian Facebook group, there was a discussion about a lens whose focus ring would not work. A really obvious defect. Surprise - that lens was previously returned by (at least) one other user for the same defect. And resold as new (not by Ricoh Imaging).

**Merv-O** · 03-12-2019, 05:59 AM

I currently have the SIGMA 12-24mm f/4.5-5.6 DG EX lens and even though it is a bit slower than this Pentax 11-18mm, the quiet motor, thefts focus and the IQ of the K-1 and the KP makes me wonder if I truly need this lens--I also have a 15-30 which is larger and overlaps both of these....in reference to the 35mm F/2 redux, I have an original copy and it works fine for my intended purposes (on both APS-c and FF).

So why did Pentax offer these lenses when there are other gaps that need to be tended to?

CarlJF · 03-12-2019, 07:08 AM - **1 Like**

Originally posted by Merv-O

I currently have the SIGMA 12-24mm f/4.5-5.6 DG EX lens and even though it is a bit slower than this Pentax 11-18mm, the quiet motor, thefts focus and the IQ of the K-1 and the KP makes me wonder if I truly need this lens--I also have a 15-30 which is larger and overlaps both of these....in reference to the 35mm F/2 redux, I have an original copy and it works fine for my intended purposes (on both APS-c and FF).

So why did Pentax offer these lenses when there are other gaps that need to be tended to?

The 15-30 is quite different, it's a FF lens and 11mm is significantly wider than 15mm. On APS-C, the 15-30 is more like a "wide zoom" than a UWA. It really can't substitute for a UWA zoom. The DA 12-24 may be seen as a substitute, but it's really not the same class either.

The 11-18 appeared on the roadmap many years ago, so we can speculate this lens has been on the drawing board for a long time. It just happens that it's ready now. So, why not release it ? There's no high end APS-C UWA zoom in the current lineup. It just makes as much sense as any other lenses to develop. Like any new lenses, some people will find they have no use for it and would have prefered something else. But this doesn't mean Pentax should have worked on something else. Plenty of people will find it useful. And as many people would have no use for the lens you think Pentax should have worked on instead...

fsge · 03-12-2019, 07:39 AM

Originally posted by Merv-O

I currently have the SIGMA 12-24mm f/4.5-5.6 DG EX lens and even though it is a bit slower than this Pentax 11-18mm, the quiet motor, thefts focus and the IQ of the K-1 and the KP makes me wonder if I truly need this lens--I also have a 15-30 which is larger and overlaps both of these....in reference to the 35mm F/2 redux, I have an original copy and it works fine for my intended purposes (on both APS-c and FF).

So why did Pentax offer these lenses when there are other gaps that need to be tended to?

From what I know this sigma 12-24 is soft, 11-18 should be much better image quality wise.

02-17-2019, 08:02 PM - 3 Likes	#977
clackers Otis Memorial Pentaxian Join Date: Jul 2013 Location: Melbourne Photos: Albums Posts: 16,397	Originally posted by Gianclaudio I really, REALLY admire your patience dealing with speculative and baseless opinions. Thanks, Gianclaudio … I won't even ask Ogl to interpolate by looking at the graphs what the DA* does at 12mm instead of 11mm. No point. He honestly thought a few weeks ago that MTF was something you only did with film, not digital... Last edited by BigMackCam; 02-18-2019 at 01:26 AM. Reason: Keeping it friendly

03-06-2019, 10:31 AM - 1 Like	#987
Kunzite Pentaxian Join Date: Apr 2007 Location: Romania Posts: 15,132	No matter how much you invest into production and QC, you can't have a zero defect rate. Especially factoring in a rough shipping, maybe mishandling in the shop. Is this a common occurrence or not? This is the question... I'm also a bit concerned about the lens being exchanged by the dealer - would they attempt to re-sell it? On a Romanian Facebook group, there was a discussion about a lens whose focus ring would not work. A really obvious defect. Surprise - that lens was previously returned by (at least) one other user for the same defect. And resold as new (not by Ricoh Imaging). Last edited by Kunzite; 03-06-2019 at 10:37 AM.

03-12-2019, 05:59 AM	#988
Merv-O Loyal Site Supporter Join Date: Aug 2018 Location: Philadelphia Photos: Albums Posts: 2,098	Does this offer more than a 12-24mm? I currently have the SIGMA 12-24mm f/4.5-5.6 DG EX lens and even though it is a bit slower than this Pentax 11-18mm, the quiet motor, thefts focus and the IQ of the K-1 and the KP makes me wonder if I truly need this lens--I also have a 15-30 which is larger and overlaps both of these....in reference to the 35mm F/2 redux, I have an original copy and it works fine for my intended purposes (on both APS-c and FF). So why did Pentax offer these lenses when there are other gaps that need to be tended to?

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02-17-2019, 09:53 AM - 4 Likes	#976
Gianclaudio Senior Member Join Date: Oct 2017 Location: Hannover Photos: Gallery Posts: 163	Originally posted by clackers ? Comparing 11mm f4 to 12mm f4, which is the most direct possible from these graphs, the Sagitall contrast is 90 vs 80 at the edge, and the same microcontrast (probably represents best what you mean by 'resolution' - fine detail) is about 45 versus about 25. 15-20 might be considered the lowest acceptable score. That the SvM track so closely means astigmatism is really minimized, so it should mean superior bokeh and is also an exciting prospect as an Astro lens … helped that it is also f2.8, not f4. Now, the 12-24 … I own it. And it's such a good lens I've used it on the K-1. But the DA* is clearly better. I really, REALLY admire your patience dealing with speculative and baseless opinions. Last edited by BigMackCam; 02-17-2019 at 12:31 PM. Reason: Keeping it friendly

02-19-2019, 02:35 AM - 2 Likes	#978
JPT Pentaxian Join Date: Jan 2012 Location: Tokyo Photos: Gallery Posts: 2,821	Yaotomi has a report on the HD FA 35 f2 now. ?????? HD PENTAX-FA35mm F2 ???????? ? ?? ??????????? - ???? It’s a pity that it’s so overcast in Japan this week. You can’t really see whether the new coating helps with the sun or high contrast situations from this.

02-19-2019, 03:32 AM	#979
Reed Pentaxian Join Date: Mar 2015 Location: Warsaw Photos: Gallery Posts: 638	Originally posted by JPT Yaotomi has a report on the HD FA 35 f2 now. ?????? HD PENTAX-FA35mm F2 ???????? ? ?? ??????????? - ???? It’s a pity that it’s so overcast in Japan this week. You can’t really see whether the new coating helps with the sun or high contrast situations from this. All of that pictures seems a bit out of focus for me.

02-19-2019, 06:55 AM	#980
superdave Senior Member Join Date: Apr 2009 Posts: 228	Originally posted by Reed All of that pictures seems a bit out of focus for me. In fact all the pictures was shoot at f/2.8 or less, and old lenses are not good wide open.

02-19-2019, 07:09 AM	#981
Reed Pentaxian Join Date: Mar 2015 Location: Warsaw Photos: Gallery Posts: 638	Originally posted by superdave In fact all the pictures was shoot at f/2.8 or less, and old lenses are not good wide open. Third one is marked as F8 shot, and well, its not focused properly.

02-21-2019, 10:27 AM	#982
Mistral75 Pentaxian Join Date: Feb 2009 Location: Paris, France Posts: 7,527	Firmware updates for K-1 (Version 1.51) and K-1 II (Version 1.03). Originally posted by Ricoh Imaging: Optimized performance when attaching new lens HD PENTAX-DA*11-18mmF2.8ED DC AW I find it odd to begin with the two 24x36 cameras to optimize the way Pentax cameras perform with an APS-C lens! Digital Camera Utility 5 is updated too (Version 5.8.2) Originally posted by Ricoh Imaging: Added new lens name for [HD PENTAX- FA 35mm F2] + various bug fixes.

02-21-2019, 10:59 AM	#983
MMVIII Pentaxian Join Date: Mar 2008 Location: EU Posts: 1,121	Originally posted by Mistral75 Firmware updates for K-1 (Version 1.51) and K-1 II (Version 1.03). I find it odd to begin with the two 24x36 cameras to optimize the way Pentax cameras perform with an APS-C lens! Digital Camera Utility 5 is updated too (Version 5.8.2) + various bug fixes. Agree on the oddness. But they have to wait with the APS-C cameras to not prematurely expose the new top model

02-21-2019, 11:17 AM - 1 Like	#984
Mistral75 Pentaxian Join Date: Feb 2009 Location: Paris, France Posts: 7,527	I presume any new APS-C Pentax DSLR would natively include 'optimized performance' with the HD Pentax-DA★ 11-18mm f/2.8 ED DC AW, therefore its announcement, or lack thereof, shouldn't interfere with the K-70, KP and K-3 II (for instance) enjoying an updated firmware.

03-06-2019, 04:11 AM	#985
Mistral75 Pentaxian Join Date: Feb 2009 Location: Paris, France Posts: 7,527	A decentred copy in the first batch delivered to France: HD Pentax-DA★ 11-18 mm f/2,8

03-06-2019, 09:59 AM	#986
BarneyL Pentaxian Join Date: Feb 2017 Posts: 899	Way to go, Ricoh... :-\

03-12-2019, 07:08 AM - 1 Like	#989
CarlJF Veteran Member Join Date: Sep 2014 Location: Quebec City Posts: 1,185	Originally posted by Merv-O I currently have the SIGMA 12-24mm f/4.5-5.6 DG EX lens and even though it is a bit slower than this Pentax 11-18mm, the quiet motor, thefts focus and the IQ of the K-1 and the KP makes me wonder if I truly need this lens--I also have a 15-30 which is larger and overlaps both of these....in reference to the 35mm F/2 redux, I have an original copy and it works fine for my intended purposes (on both APS-c and FF). So why did Pentax offer these lenses when there are other gaps that need to be tended to? The 15-30 is quite different, it's a FF lens and 11mm is significantly wider than 15mm. On APS-C, the 15-30 is more like a "wide zoom" than a UWA. It really can't substitute for a UWA zoom. The DA 12-24 may be seen as a substitute, but it's really not the same class either. The 11-18 appeared on the roadmap many years ago, so we can speculate this lens has been on the drawing board for a long time. It just happens that it's ready now. So, why not release it ? There's no high end APS-C UWA zoom in the current lineup. It just makes as much sense as any other lenses to develop. Like any new lenses, some people will find they have no use for it and would have prefered something else. But this doesn't mean Pentax should have worked on something else. Plenty of people will find it useful. And as many people would have no use for the lens you think Pentax should have worked on instead...

03-12-2019, 07:39 AM	#990
fsge Veteran Member Join Date: Jun 2010 Location: Genf Posts: 1,138	Originally posted by Merv-O I currently have the SIGMA 12-24mm f/4.5-5.6 DG EX lens and even though it is a bit slower than this Pentax 11-18mm, the quiet motor, thefts focus and the IQ of the K-1 and the KP makes me wonder if I truly need this lens--I also have a 15-30 which is larger and overlaps both of these....in reference to the 35mm F/2 redux, I have an original copy and it works fine for my intended purposes (on both APS-c and FF). So why did Pentax offer these lenses when there are other gaps that need to be tended to? From what I know this sigma 12-24 is soft, 11-18 should be much better image quality wise.