The world's first PK-FE autofocus transfer ring

konraDarnok · 11-08-2020, 08:40 AM - **6 Likes**

I can understand people who have no interest in an adapter like this. I can even understand brand loyalists. That's fine.

What I don't comprehend is hanging out in a thread for a product you don't want just to be negative and complain about it, like it was about you. It's not.

Kunzite · 11-08-2020, 09:59 AM

Originally posted by konraDarnok

I can understand people who have no interest in an adapter like this. I can even understand brand loyalists. That's fine.

What I don't comprehend is hanging out in a thread for a product you don't want just to be negative and complain about it, like it was about you. It's not.

If you're talking about me, I was responding to someone stating that this adapter is more interesting than the K-3 III.
Before that I pointed out, correctly, that the adapter needs the power contacts to work with KAF3/KAF4 lenses, and I didn't see any in the picture presented. Of course, the final product might be different. It better be different.

Neither is negative or "just complaining". I even started posting with "I'm obviously not interested, as I don't plan to buy myself a Sony. It should be nice for those who do, of course."

konraDarnok · 11-08-2020, 11:19 AM - **1 Like**

Carly Simon wrote a great song about people like that.

**Belnan** · 11-08-2020, 02:47 PM

I hope to see some reviews on this forum when people get it.

Doundounba · 11-08-2020, 03:47 PM

This is very interesting! Maybe I missed something upthread, but I don't quite understand why it would support auto-aperture with, say, FA glass, but then not work with A level manual focus glass... Is that information really accurate?

**UncleVanya** · 11-08-2020, 06:05 PM - **4 Likes**

Originally posted by Doundounba

This is very interesting! Maybe I missed something upthread, but I don't quite understand why it would support auto-aperture with, say, FA glass, but then not work with A level manual focus glass... Is that information really accurate?

I suspect they aren't decoding the aperture pins on the mount. The F, FA, DA, and DFA lenses should communicate focusing distance, focal length and I think "exact" maximum aperture including variable aperture lenses. These lenses also have the passive "A-series" style communication for backwards compatibility with older manual focus bodies. The "A-series" passive communications have a limited set of options for maximum aperture. This is why the DA 50 f1.8 is able to tell the camera it is f1.8 while the A 50 couldn't do so if it wanted since there isn't an f1.8 option on the chart of positions for the lens contacts. And there's no cpu in the A 50.

Features and Operation of the KA Mount | The K-Mount Page

Dieseler · 11-09-2020, 03:04 AM - **1 Like**

Originally posted by Kunzite

That... isn't nice.

Sorry if it came across a bit harsh.

bdery · 11-09-2020, 06:41 AM - **5 Likes**

Long story short:

1-For some people it's completely irrelevant
2-For some current Sony users it will open the realm of fantastic Pentax glass (often less expensive)
3-For some current Pentax owners it will open possibilities of using Pentax glass with bodies offering better AF tracking, better video possibilities and (like with the Sony A7C) smaller bodies

I see no loosers here. And I don't think it will, in any way, be worst for the Pentax brand.

surfar · 11-09-2020, 09:23 AM - **1 Like**

Originally posted by bdery

I don't think it will, in any way, be worst for the Pentax brand.

There will be people who will buy $ony bodies instead of Pentax,thats money Ricoh wont ever see.

Then with the native and third party glass available,people will buy those lenses.Thats money Ricoh will never see.

**UncleVanya** · 11-09-2020, 10:16 AM - **1 Like**

Originally posted by surfar

There will be people who will buy $ony bodies instead of Pentax,thats money Ricoh wont ever see.

Then with the native and third party glass available,people will buy those lenses.Thats money Ricoh will never see.

Unless that number is a larger percentage than I anticipate, I doubt it will have a statistically significant impact.

nixcamic · 11-09-2020, 10:21 AM

Does anyone have any ideas on what pricing will be?

Raffwal · 11-09-2020, 11:51 AM

Originally posted by nixcamic

Does anyone have any ideas on what pricing will be?

How about reading the previous page in this thread?

surfar · 11-09-2020, 02:41 PM

Originally posted by nixcamic

Does anyone have any ideas on what pricing will be?

Post 106 gives an indication.

ecostigny · 11-09-2020, 04:02 PM

The adapter is not cheap, but considering the price of some of Sony's current lenses, being able to use currently-owned Pentax glass might make it worth one's while.

**UncleVanya** · 11-09-2020, 07:28 PM

Originally posted by OoKU

about 300-400$,
It's already in beta.

---------- Post added 11-02-20 at 04:41 PM ----------

WR is not currently planned as it will result in a higher price.

That price is quite good it lines up favorably with some Canon EF to E mount adapters. WR might make for a useful future version if this sells well.

Is the BETA closed?

11-09-2020, 09:23 AM - 1 Like	#129
surfar Pentaxian Join Date: Jan 2015 Location: mid nth coast,nsw Photos: Gallery Posts: 6,145	Originally posted by bdery I don't think it will, in any way, be worst for the Pentax brand. There will be people who will buy $ony bodies instead of Pentax,thats money Ricoh wont ever see. Then with the native and third party glass available,people will buy those lenses.Thats money Ricoh will never see. Last edited by surfar; 11-09-2020 at 09:28 AM.

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11-08-2020, 08:40 AM - 6 Likes	#121
konraDarnok Veteran Member Join Date: Aug 2007 Photos: Albums Posts: 969	I can understand people who have no interest in an adapter like this. I can even understand brand loyalists. That's fine. What I don't comprehend is hanging out in a thread for a product you don't want just to be negative and complain about it, like it was about you. It's not.

11-08-2020, 09:59 AM	#122
Kunzite Pentaxian Join Date: Apr 2007 Location: Romania Posts: 15,132	Originally posted by konraDarnok I can understand people who have no interest in an adapter like this. I can even understand brand loyalists. That's fine. What I don't comprehend is hanging out in a thread for a product you don't want just to be negative and complain about it, like it was about you. It's not. If you're talking about me, I was responding to someone stating that this adapter is more interesting than the K-3 III. Before that I pointed out, correctly, that the adapter needs the power contacts to work with KAF3/KAF4 lenses, and I didn't see any in the picture presented. Of course, the final product might be different. It better be different. Neither is negative or "just complaining". I even started posting with "I'm obviously not interested, as I don't plan to buy myself a Sony. It should be nice for those who do, of course."

11-08-2020, 11:19 AM - 1 Like	#123
konraDarnok Veteran Member Join Date: Aug 2007 Photos: Albums Posts: 969	Carly Simon wrote a great song about people like that.

11-08-2020, 02:47 PM	#124
Belnan Site Supporter Join Date: Jul 2010 Location: Nova Scotia Photos: Albums Posts: 1,090	I hope to see some reviews on this forum when people get it.

11-08-2020, 03:47 PM	#125
Doundounba Pentaxian Join Date: Dec 2012 Location: Montréal QC Photos: Gallery \| Albums Posts: 2,351	This is very interesting! Maybe I missed something upthread, but I don't quite understand why it would support auto-aperture with, say, FA glass, but then not work with A level manual focus glass... Is that information really accurate?

11-08-2020, 06:05 PM - 4 Likes	#126
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,459	Originally posted by Doundounba This is very interesting! Maybe I missed something upthread, but I don't quite understand why it would support auto-aperture with, say, FA glass, but then not work with A level manual focus glass... Is that information really accurate? I suspect they aren't decoding the aperture pins on the mount. The F, FA, DA, and DFA lenses should communicate focusing distance, focal length and I think "exact" maximum aperture including variable aperture lenses. These lenses also have the passive "A-series" style communication for backwards compatibility with older manual focus bodies. The "A-series" passive communications have a limited set of options for maximum aperture. This is why the DA 50 f1.8 is able to tell the camera it is f1.8 while the A 50 couldn't do so if it wanted since there isn't an f1.8 option on the chart of positions for the lens contacts. And there's no cpu in the A 50. Features and Operation of the KA Mount \| The K-Mount Page

11-09-2020, 03:04 AM - 1 Like	#127
Dieseler Pentaxian Join Date: Feb 2014 Location: Western Australia Photos: Albums Posts: 351	Originally posted by Kunzite That... isn't nice. Sorry if it came across a bit harsh.

11-09-2020, 06:41 AM - 5 Likes	#128
bdery Pentaxian Join Date: Mar 2008 Location: Quebec city, Canada Photos: Gallery Posts: 9,362	Long story short: 1-For some people it's completely irrelevant 2-For some current Sony users it will open the realm of fantastic Pentax glass (often less expensive) 3-For some current Pentax owners it will open possibilities of using Pentax glass with bodies offering better AF tracking, better video possibilities and (like with the Sony A7C) smaller bodies I see no loosers here. And I don't think it will, in any way, be worst for the Pentax brand.

11-09-2020, 10:16 AM - 1 Like	#130
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,459	Originally posted by surfar There will be people who will buy $ony bodies instead of Pentax,thats money Ricoh wont ever see. Then with the native and third party glass available,people will buy those lenses.Thats money Ricoh will never see. Unless that number is a larger percentage than I anticipate, I doubt it will have a statistically significant impact.

11-09-2020, 10:21 AM	#131
nixcamic Veteran Member Join Date: Jun 2008 Location: Guatemala Posts: 354	Does anyone have any ideas on what pricing will be?

11-09-2020, 11:51 AM	#132
Raffwal Veteran Member Join Date: Oct 2010 Location: The North Posts: 879	Originally posted by nixcamic Does anyone have any ideas on what pricing will be? How about reading the previous page in this thread?

11-09-2020, 02:41 PM	#133
surfar Pentaxian Join Date: Jan 2015 Location: mid nth coast,nsw Photos: Gallery Posts: 6,145	Originally posted by nixcamic Does anyone have any ideas on what pricing will be? Post 106 gives an indication.

11-09-2020, 04:02 PM	#134
ecostigny Pentaxian Join Date: Nov 2017 Location: Branford, CT Posts: 561	The adapter is not cheap, but considering the price of some of Sony's current lenses, being able to use currently-owned Pentax glass might make it worth one's while.

11-09-2020, 07:28 PM	#135
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,459	Originally posted by OoKU about 300-400$, It's already in beta. ---------- Post added 11-02-20 at 04:41 PM ---------- WR is not currently planned as it will result in a higher price. That price is quite good it lines up favorably with some Canon EF to E mount adapters. WR might make for a useful future version if this sells well. Is the BETA closed?