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Arpe · 05-11-2011, 04:01 PM

Originally posted by zackspeed

@Arpe
What did you pay for the Nikon converters???

Tricky question. The 1.4x was part of a package when I got all the new stuff, so it was brand new. So can't really separate out the cost for it.

The 1.7x was 2nd hand and cost NZ$400.

WerTicus · 05-14-2011, 03:54 AM

fyi the kenko tc does work with sigma hsm and i think the kenko does have SMC because the glass looks exactly like the glass on my DA limited's in terms of colour and reflections.

aquila8 · 05-14-2011, 11:12 PM

I prefer a 1,4x wr and to preserve AF with F4 lens.

rvannatta · 05-15-2011, 06:37 PM

My view is that it has to be a 1.4x converter. It presumably would be matched to the Pentax
flagship long primes ---- the 200 and 300 DA* both of which are F4 lenses. If you knock 2 f stops off an F4 lens then the auto focus and auto exposure functions are in trouble.

I own both of the old dedicated converters---- the 1.4x-L and the 2x-L You really need to start out with an F2/8 or faster prime to be able to use a 2x converter.

eurostar · 05-16-2011, 12:48 AM

I think they should make both a 1,4x and a 2x. While for the 300/4 the 2x could be a challenge for the AF to function quickly, it would be great on the 200/2,8. The 200/2,8 with both rear converter could be a much more useful lens, like the 300/2,8 with rear converters is on FF.

Bramela · 05-16-2011, 12:56 AM

I would favour 1.4X at approx $300US.
I would not like to see it too much more expensive, but being SDM, I would not know what production of such a unit would cost.
I say $300 but would wait and see cost and evaluate then.

**fs999** · 05-16-2011, 02:32 AM

2x @ 250 €

GLXLR · 05-25-2011, 06:37 PM

Don't think it'd be useful or of much interest at all until SDM lenses are replaced with ultrasonic auto focusing motors. Considering the speed of SDM autofocus, I doubt many would be interested in slowing the autofocus even further.

Zubati Kit · 05-27-2011, 02:39 PM

one more vote for 1.4x SMD WR TC, I think it is sorely lacking in the current lineup, and it should be optimized for DA* 300 most of all.

zackspeed · 05-28-2011, 04:26 AM

That´s the Idea......

SanMat · 05-28-2011, 08:26 PM

An SDM converter would be great, but I think the dream setup would be a Pentax version of the Sony lens that's coming out this year - 200-400mm (f/4) with an INTERNAL 1.4x converter that can be turned on and off. That way, no messing around with attaching a separate piece of glass.

I fully realize I'm dreaming, but it's nice to dream sometimes.

My two cents.

Pete

Pentauser · 05-29-2011, 06:26 AM

1.4x SDM would be great

rvannatta · 05-29-2011, 05:13 PM

Originally posted by Pentauser

1.4x SDM would be great

any path beyond the 300 mm wall.

Class A · 05-29-2011, 05:34 PM

Originally posted by rvannatta

any path beyond the 300 mm wall.

50-500mm F4.5-6.3 APO DG OS HSM

rvannatta · 05-29-2011, 09:18 PM

Originally posted by Class A

50-500mm F4.5-6.3 APO DG OS HSM

Alas, but not a Pentax path. While I've owned and enjoyed competitive brand products on a number of occasions and appreciate their existence (often at less costs than the brand name product, I have often also traded around, and found that buying competitive brands is a lot more fun than selling the stuff, as there are often few potential buyers sufficiently familar with the competitive brands to recognize values---even if its there making it hard to get your money back

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05-11-2011, 04:01 PM	#166
Arpe Pentaxian Join Date: Sep 2006 Location: New Zealand Photos: Gallery \| Albums Posts: 4,452	Originally posted by zackspeed @Arpe What did you pay for the Nikon converters??? Tricky question. The 1.4x was part of a package when I got all the new stuff, so it was brand new. So can't really separate out the cost for it. The 1.7x was 2nd hand and cost NZ$400.

05-14-2011, 03:54 AM	#167
WerTicus Veteran Member Join Date: Mar 2009 Location: Perth Australia Photos: Albums Posts: 1,514	fyi the kenko tc does work with sigma hsm and i think the kenko does have SMC because the glass looks exactly like the glass on my DA limited's in terms of colour and reflections.

05-14-2011, 11:12 PM	#168
aquila8 New Member Join Date: Mar 2011 Location: Rome Posts: 16	I prefer a 1,4x wr and to preserve AF with F4 lens.

05-15-2011, 06:37 PM	#169
rvannatta Pentaxian Join Date: Aug 2007 Location: Apiary, Oregon Photos: Gallery Posts: 1,181	My view is that it has to be a 1.4x converter. It presumably would be matched to the Pentax flagship long primes ---- the 200 and 300 DA* both of which are F4 lenses. If you knock 2 f stops off an F4 lens then the auto focus and auto exposure functions are in trouble. I own both of the old dedicated converters---- the 1.4x-L and the 2x-L You really need to start out with an F2/8 or faster prime to be able to use a 2x converter.

05-16-2011, 12:48 AM	#170
eurostar Veteran Member Join Date: Dec 2006 Location: Albareto, Italy Photos: Gallery Posts: 819	I think they should make both a 1,4x and a 2x. While for the 300/4 the 2x could be a challenge for the AF to function quickly, it would be great on the 200/2,8. The 200/2,8 with both rear converter could be a much more useful lens, like the 300/2,8 with rear converters is on FF.

05-16-2011, 12:56 AM	#171
Bramela Veteran Member Join Date: Jan 2007 Location: Newcastle Australia Photos: Gallery \| Albums Posts: 5,284	I would favour 1.4X at approx $300US. I would not like to see it too much more expensive, but being SDM, I would not know what production of such a unit would cost. I say $300 but would wait and see cost and evaluate then.

05-16-2011, 02:32 AM	#172
fs999 Loyal Site Supporter Join Date: Jul 2008 Location: Luxembourg Photos: Gallery Posts: 8,648	2x @ 250 €

05-25-2011, 06:37 PM	#173
GLXLR Veteran Member Join Date: Feb 2009 Location: Sugar Land, TX Photos: Gallery Posts: 684	Don't think it'd be useful or of much interest at all until SDM lenses are replaced with ultrasonic auto focusing motors. Considering the speed of SDM autofocus, I doubt many would be interested in slowing the autofocus even further.

05-27-2011, 02:39 PM	#174
Zubati Kit Senior Member Join Date: Feb 2007 Location: UK Posts: 113	one more vote for 1.4x SMD WR TC, I think it is sorely lacking in the current lineup, and it should be optimized for DA* 300 most of all.

05-28-2011, 04:26 AM	#175
zackspeed Veteran Member Join Date: Mar 2010 Posts: 527 Original Poster	That´s the Idea......

05-28-2011, 08:26 PM	#176
SanMat Senior Member Join Date: Mar 2010 Location: California Photos: Gallery Posts: 129	An SDM converter would be great, but I think the dream setup would be a Pentax version of the Sony lens that's coming out this year - 200-400mm (f/4) with an INTERNAL 1.4x converter that can be turned on and off. That way, no messing around with attaching a separate piece of glass. I fully realize I'm dreaming, but it's nice to dream sometimes. My two cents. Pete

05-29-2011, 06:26 AM	#177
Pentauser New Member Join Date: May 2011 Posts: 14	1.4x SDM would be great

05-29-2011, 05:13 PM	#178
rvannatta Pentaxian Join Date: Aug 2007 Location: Apiary, Oregon Photos: Gallery Posts: 1,181	Originally posted by Pentauser 1.4x SDM would be great any path beyond the 300 mm wall.

05-29-2011, 05:34 PM	#179
Class A Pentaxian Join Date: Aug 2008 Location: Wellington, New Zealand Posts: 11,251	Originally posted by rvannatta any path beyond the 300 mm wall. 50-500mm F4.5-6.3 APO DG OS HSM

05-29-2011, 09:18 PM	#180
rvannatta Pentaxian Join Date: Aug 2007 Location: Apiary, Oregon Photos: Gallery Posts: 1,181	Originally posted by Class A 50-500mm F4.5-6.3 APO DG OS HSM Alas, but not a Pentax path. While I've owned and enjoyed competitive brand products on a number of occasions and appreciate their existence (often at less costs than the brand name product, I have often also traded around, and found that buying competitive brands is a lot more fun than selling the stuff, as there are often few potential buyers sufficiently familar with the competitive brands to recognize values---even if its there making it hard to get your money back

Pentax SDM Converter,are you serious interested?

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