The Pentax HD PENTAX-DA AF Rear Converter 1.4X AW (and any lens) Club

shiner · 04-06-2017, 11:40 PM - **1 Like**

With DA*300 tonight. I think high winds aloft made it a little fuzzy.

royd63uk · 04-20-2017, 01:37 PM - **1 Like**

Male Sparrow
150-450 plus convertor

audiobomber · 04-21-2017, 04:54 AM

Wonderful detail and great colours royd63uk, but I don't care for the bokeh. Would you be able to post a shot with the 150-450 with and without TC for a bokeh comparison?

rondoudou87 · 04-22-2017, 02:51 AM - **8 Likes**

k-1 & DA300 & TC1,4x

exnito · 05-17-2017, 05:39 AM

Hello.
Is the combo K-5 II + HD Pentax-D FA* 70-200mm F2.8 ED DC AW compatible with the TC ?
Any sample images ?

Thank you

devouges · 05-17-2017, 05:44 AM

Originally posted by Sandy Hancock

My first test shot with the DA*300. Hand held.

I LOVE my DA*300 ! ! !

royd63uk · 05-17-2017, 09:57 AM

Originally posted by audiobomber

Wonderful detail and great colours royd63uk, but I don't care for the bokeh. Would you be able to post a shot with the 150-450 with and without TC for a bokeh comparison?

HI Dan
I will try to get a shot without the convertor, I think the bokeh is due to slight movement also as this was hand held
Roy

audiobomber · 05-17-2017, 11:44 AM

Originally posted by royd63uk

HI Dan
I will try to get a shot without the convertor, I think the bokeh is due to slight movement also as this was hand held
Roy

I don't think shake was an issue, because the foreground is tack sharp. I am curious to know if the bokeh is normal for this lens or a characteristic of the lens + TC.

royd63uk · 05-17-2017, 12:30 PM

Originally posted by audiobomber

I don't think shake was an issue, because the foreground is tack sharp. I am curious to know if the bokeh is normal for this lens or a characteristic of the lens + TC.

Ok Dan
Will tke a couple of photo's to compare
Roy

**Weevil** · 05-17-2017, 05:32 PM

Originally posted by audiobomber

I don't think shake was an issue, because the foreground is tack sharp. I am curious to know if the bokeh is normal for this lens or a characteristic of the lens + TC.

I noted that the DA300 + HDTC hase a more nervous bokeh than the DA300 itself... the 150-450 already have a nervous bokeh without TC, and anyways, TC's would normally just proportionaly increase any bad rendering...

apfhex · 06-06-2017, 08:29 PM

A bird-in-almost-flight with the *300.

**aslyfox** · 10-22-2017, 12:51 PM

Red Winged Black Bird perched on a cat tail

K 3 + Smc PENTAX-DA L 55-300mm F4-5.8 ED + HD Pentax-DA 1.4x AW AF Rear Converter

hand held, natural light

**Weevil** · 11-14-2017, 08:47 PM

(X-posted )
This immature dark morph Snow Goose have drawn the attention of bird watchers because it has a pale tip of its beak. It's probably just a simple genetic aberration
K-3II + DA300 =HDTC1.4x
(heavy Crop at 1:2)

Oie "bleue" juvénile spéciale / Special Immature Blue Goose

**Weevil** · 11-14-2017, 11:41 PM

Originally posted by exnito

Hello.
Is the combo K-5 II + HD Pentax-D FA* 70-200mm F2.8 ED DC AW compatible with the TC ?
Any sample images ?

Thank you

Hi, I think nobody answered your question, which answer is unfortunately no... the HD TC 1.4x is not FF compatible. It would work, but you'd have severe vignetting.
However, it would work, and could be ok if your subject is pretty small on the sensor (I'd say something like1:4 crop at least) and accordingly that you have lots of spare Mpx to crop to your subject, for example from a K-3xyz
Hope that helps...

Edit: Just saw you have the K-5II... so it would not be an issue, my answer was for a K-1 Body with that combo...

**aslyfox** · 11-15-2017, 04:45 AM - **1 Like**

Originally posted by exnito

Hello.
Is the combo K-5 II + HD Pentax-D FA* 70-200mm F2.8 ED DC AW compatible with the TC ? . . .

Originally posted by Weevil

Hi, I think nobody answered your question, which answer is unfortunately no... the HD TC 1.4x is not FF compatible. It would work, but you'd have severe vignetting.
However, it would work, and could be ok if your subject is pretty small on the sensor (I'd say something like1:4 crop at least) and accordingly that you have lots of spare Mpx to crop to your subject, for example from a K-3xyz
Hope that helps...

Edit: Just saw you have the K-5II... so it would not be an issue, my answer was for a K-1 Body with that combo...

I don't have a K 1

but it does have a crop mode and as I understand it, the DA 1.4 rear converter will work with the K 1 in crop mode

____________________________

the rear converter does work with the D FA * 70 - 200mm 2.8 lens

this link to part of the " in depth review " indicates how it works with Pentax camera bodies and lenses:

Pentax-DA 1.4x AW AF Rear Converter Review - Specifications | PentaxForums.com Reviews

this link shows that certain Pentax camera bodies require a firm ware update for full capacity:

New Firmware Adds Support for Pentax Teleconverter - Firmware Updates | PentaxForums.com

I have used it with my K 3 and K 5 II without any problem

11-14-2017, 11:41 PM	#389
Weevil Site Supporter Join Date: May 2012 Location: Near Montréal, Québec Photos: Gallery Posts: 4,446	Originally posted by exnito Hello. Is the combo K-5 II + HD Pentax-D FA* 70-200mm F2.8 ED DC AW compatible with the TC ? Any sample images ? Thank you Hi, I think nobody answered your question, which answer is unfortunately no... the HD TC 1.4x is not FF compatible. It would work, but you'd have severe vignetting. However, it would work, and could be ok if your subject is pretty small on the sensor (I'd say something like1:4 crop at least) and accordingly that you have lots of spare Mpx to crop to your subject, for example from a K-3xyz Hope that helps... Edit: Just saw you have the K-5II... so it would not be an issue, my answer was for a K-1 Body with that combo... Last edited by Weevil; 11-14-2017 at 11:43 PM. Reason: precison

11-15-2017, 04:45 AM - 1 Like	#390
aslyfox Seeker of Knowledge Join Date: Aug 2016 Location: Topeka, Kansas Photos: Gallery \| Albums Posts: 24,583	Originally posted by exnito Hello. Is the combo K-5 II + HD Pentax-D FA* 70-200mm F2.8 ED DC AW compatible with the TC ? . . . Originally posted by Weevil Hi, I think nobody answered your question, which answer is unfortunately no... the HD TC 1.4x is not FF compatible. It would work, but you'd have severe vignetting. However, it would work, and could be ok if your subject is pretty small on the sensor (I'd say something like1:4 crop at least) and accordingly that you have lots of spare Mpx to crop to your subject, for example from a K-3xyz Hope that helps... Edit: Just saw you have the K-5II... so it would not be an issue, my answer was for a K-1 Body with that combo... I don't have a K 1 but it does have a crop mode and as I understand it, the DA 1.4 rear converter will work with the K 1 in crop mode ____________________________ the rear converter does work with the D FA * 70 - 200mm 2.8 lens this link to part of the " in depth review " indicates how it works with Pentax camera bodies and lenses: Pentax-DA 1.4x AW AF Rear Converter Review - Specifications \| PentaxForums.com Reviews this link shows that certain Pentax camera bodies require a firm ware update for full capacity: New Firmware Adds Support for Pentax Teleconverter - Firmware Updates \| PentaxForums.com I have used it with my K 3 and K 5 II without any problem Last edited by aslyfox; 11-15-2017 at 04:51 AM.

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04-06-2017, 11:40 PM - 1 Like	#376
shiner Pentaxian Join Date: Jan 2009 Location: N GA USA Photos: Gallery \| Albums Posts: 2,127	With DA*300 tonight. I think high winds aloft made it a little fuzzy.

04-21-2017, 04:54 AM	#378
audiobomber Veteran Member Join Date: May 2008 Location: Sudbury, Ontario Photos: Albums Posts: 6,806	Wonderful detail and great colours royd63uk, but I don't care for the bokeh. Would you be able to post a shot with the 150-450 with and without TC for a bokeh comparison?

04-22-2017, 02:51 AM - 8 Likes	#379
rondoudou87 Senior Member Join Date: Mar 2015 Location: Limousin Photos: Albums Posts: 118	k-1 & DA300 & TC1,4x

05-17-2017, 05:39 AM	#380
exnito Junior Member Join Date: Feb 2014 Location: Martin Posts: 53	Hello. Is the combo K-5 II + HD Pentax-D FA* 70-200mm F2.8 ED DC AW compatible with the TC ? Any sample images ? Thank you

05-17-2017, 05:44 AM	#381
devouges Pentaxian Join Date: Nov 2006 Location: Montreal, Quebec, Canada Photos: Gallery \| Albums Posts: 324	Originally posted by Sandy Hancock My first test shot with the DA300. Hand held. I LOVE my DA300 ! ! !

05-17-2017, 09:57 AM	#382
royd63uk Senior Member Join Date: Aug 2008 Location: Wales U.k Posts: 102	Originally posted by audiobomber Wonderful detail and great colours royd63uk, but I don't care for the bokeh. Would you be able to post a shot with the 150-450 with and without TC for a bokeh comparison? HI Dan I will try to get a shot without the convertor, I think the bokeh is due to slight movement also as this was hand held Roy

05-17-2017, 11:44 AM	#383
audiobomber Veteran Member Join Date: May 2008 Location: Sudbury, Ontario Photos: Albums Posts: 6,806	Originally posted by royd63uk HI Dan I will try to get a shot without the convertor, I think the bokeh is due to slight movement also as this was hand held Roy I don't think shake was an issue, because the foreground is tack sharp. I am curious to know if the bokeh is normal for this lens or a characteristic of the lens + TC.

05-17-2017, 12:30 PM	#384
royd63uk Senior Member Join Date: Aug 2008 Location: Wales U.k Posts: 102	Originally posted by audiobomber I don't think shake was an issue, because the foreground is tack sharp. I am curious to know if the bokeh is normal for this lens or a characteristic of the lens + TC. Ok Dan Will tke a couple of photo's to compare Roy

05-17-2017, 05:32 PM	#385
Weevil Site Supporter Join Date: May 2012 Location: Near Montréal, Québec Photos: Gallery Posts: 4,446	Originally posted by audiobomber I don't think shake was an issue, because the foreground is tack sharp. I am curious to know if the bokeh is normal for this lens or a characteristic of the lens + TC. I noted that the DA300 + HDTC hase a more nervous bokeh than the DA300 itself... the 150-450 already have a nervous bokeh without TC, and anyways, TC's would normally just proportionaly increase any bad rendering...

06-06-2017, 08:29 PM	#386
apfhex Senior Member Join Date: Feb 2013 Photos: Gallery Posts: 117	A bird-in-almost-flight with the *300.

11-14-2017, 08:47 PM	#388
Weevil Site Supporter Join Date: May 2012 Location: Near Montréal, Québec Photos: Gallery Posts: 4,446	(X-posted ) This immature dark morph Snow Goose have drawn the attention of bird watchers because it has a pale tip of its beak. It's probably just a simple genetic aberration K-3II + DA300 =HDTC1.4x (heavy Crop at 1:2) Oie "bleue" juvénile spéciale / Special Immature Blue Goose