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05-11-2011, 04:01 PM   #166
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QuoteOriginally posted by zackspeed Quote
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
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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
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I prefer a 1,4x wr and to preserve AF with F4 lens.
05-15-2011, 06:37 PM   #169
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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
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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
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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
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2x @ 250 €
05-25-2011, 06:37 PM   #173
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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
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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
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Original Poster

Thatīs the Idea......
05-28-2011, 08:26 PM   #176
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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.

05-29-2011, 06:26 AM   #177
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1.4x SDM would be great
05-29-2011, 05:13 PM   #178
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QuoteOriginally posted by Pentauser Quote
1.4x SDM would be great
any path beyond the 300 mm wall.
05-29-2011, 05:34 PM   #179
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QuoteOriginally posted by rvannatta Quote
any path beyond the 300 mm wall.
50-500mm F4.5-6.3 APO DG OS HSM
05-29-2011, 09:18 PM   #180
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QuoteOriginally posted by Class A Quote
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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