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02-05-2014, 03:13 PM   #1
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HD Teleconverter Officially Announced

QuoteQuote:
Compatible Lenses

Compatible (AF-enabled) lenses for HD PENTAX-DA AF REAR CONVERTER 1.4× AW

smc PENTAX-DA 12-24mm F4 ED AL[IF]
smc PENTAX-DA★ 16-50mm F2.8 ED AL[IF] SDM
smc PENTAX-DA 17-70mm F4 AL[IF] SDM - 1*
HD PENTAX-DA 20-40mm F2.8-4 ED Limited DC WR
smc PENTAX-DA★ 50-135mm F2.8 ED[IF] SDM
smc PENTAX-DA 55-300mm F4-5.8 ED - 3* 
HD PENTAX-DA 55-300mm F4-5.8 ED WR - 3*
smc PENTAX-DA★ 60-250mm F4 ED[IF] SDM
smc PENTAX-DA 14mm F2.8 ED[IF] 
smc PENTAX-DA 35mm F2.4 AL
smc PENTAX-DA 35mm F2.8 Macro Limited
HD PENTAX-DA 35mm F2.8 Macro Limited
smc PENTAX-DA 40mm F2.8 Limited
HD PENTAX-DA 40mm F2.8 Limited
smc PENTAX-DA 50mm F1.8
smc PENTAX-DA★ 55mm F1.4 SDM - 2*
smc PENTAX-DA 70mm F2.4 Limited
HD PENTAX-DA 70mm F2.4 Limited
smc PENTAX-DA★ 200mm F2.8 ED[IF] SDM
smc PENTAX-DA★ 300mm F4 ED[IF] SDM
HD PENTAX-DA 560mm F5.6 ED AW - 3*
smc PENTAX-D FA MACRO 50mm F2.8
smc PENTAX-D FA MACRO 100mm F2.8 WR
1* Could be out of focus with contrast AF
2* Maximum aperture from F2.4
3* Could be out of focus with phase matching AF

• Compatible (AF-enabled) cameras are as follows: K-3, K-50, K-30, K-5 ll ,K-5 lls ,K-5, K-01, K-7, K-r
(Update of camera’s firmware is required)
• Could be out of focus with contrast AF of K7
• Maximum aperture (F number) will be one-stop larger
• Please refrain from equipping the following lenses since the rear converter lens might touch the joint part of those main lenses - HD PENTAX-DA 15mm F4 ED AL Limited / HD PENTAX-DA 21mm F3.2 AL Limited / smc PENTAX-DA 40mm F2.8 XS
Pentax Announces New 1.4x Teleconveter - Pentax News - PentaxForums.com
Ricoh announces HD Pentax DA AF 1.4X AW rear converter: Digital Photography Review

I think it is interesting that the 40 XS gets cited as incompatible while the other variations of 40 ltds

02-05-2014, 03:19 PM   #2
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I need to start saving my pennies then!
02-05-2014, 03:22 PM   #3
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for 600?!?!??!!?

and I thought the Tamron TC's were nuts at 300 or the Pentax 1.7 at 350.

For 600 it better make lens IQ better!
02-05-2014, 03:26 PM   #4
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$599.95 ? The SMC Pentax-F 1.7x AF Adapter is looking like a bargain ,

02-05-2014, 03:27 PM   #5
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What this means: "3* Could be out of focus with phase matching AF"?
02-05-2014, 03:28 PM - 4 Likes   #6
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The Canon and Nikon teleconverters are ~$500, street price.
But a newly launched Pentax' MSRP must be half that, right?
02-05-2014, 03:29 PM   #7
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QuoteOriginally posted by valy Quote
What this means: "3* Could be out of focus with phase matching AF"?
That the effective aperture might be too dark for accurate focusing? (in certain conditions/with some cameras)
They're all f/5.6-f/5.8 lenses; one stop less and...
02-05-2014, 03:31 PM   #8
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I wonder if it works with full AF and the 560mm lens.

Good thing to have in the line-up.

02-05-2014, 03:32 PM   #9
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I'll wait for the price drop, but a WR teleconverter has always been something I'd want.
02-05-2014, 03:34 PM   #10
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The second response already contains bitching and whining. This has got to be some sort of record.
02-05-2014, 03:34 PM   #11
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QuoteOriginally posted by Kunzite Quote
That the effective aperture might be too dark for accurate focusing? (in certain conditions/with some cameras)
They're all f/5.6-f/5.8 lenses; one stop less and...
Yes, don't Nikon and Canon also have maximum apertures of the mother lens to ensure proper Auto focus with a tc?
I will be looking out for first user reports with the Sigma 500/4.5, which is just outside of maximum aperture, but should be ok, although AF is really critical at 700mm...

Chris
02-05-2014, 03:35 PM   #12
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Promising. All the SDM lenses look fine, so that's good.
Hopefully some field reviews and optical tests will be online soon.

But no specific K-x support
02-05-2014, 03:39 PM   #13
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QuoteOriginally posted by RonHendriks1966 Quote
I wonder if it works with full AF and the 560mm lens.

Good thing to have in the line-up.
HD PENTAX-DA 560mm F5.6 ED AW - 3*
3* Could be out of focus with phase matching AF



Ricoh announces HD Pentax DA AF 1.4X AW rear converter: Digital Photography Review
02-05-2014, 03:47 PM   #14
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I'd take the "could be" as "hey, let's cover our asses". I would think that the k-3 would be ok with the teleconverter and the HD560, but I would assume something like the k-r or the k-5 would perform suboptimally. Which would be expected.
02-05-2014, 03:48 PM   #15
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From the Ricoh website...

"Autofocus is possible with a PENTAX lens having maximum aperture of f/4 or brighter."

PENTAX - HD PENTAX-DA 1.4X AW Rear Converter
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