Da 50-135 + af 1.7

Shanti · 06-10-2013, 07:20 PM

Hi anyone use the Da50-135 + Pentax AF 1.7 TC,thinking this will give me 229 tele when I need it,and not have to deal with the weight of the 70-200 Sigma or Tamrons..have DA 300 so then I have most of the tele range covered..really caught between which one to buy..price is the same about,and think the weight of the 70-200 will limit how much I carry it around,as the 300 is heavy enough
Thanks again

Adam · 06-10-2013, 07:25 PM

TBH I'd just got for a 70-200mm, as the AF will be faster and the IQ will be better. It's only 400g heavier

twitch · 06-10-2013, 07:33 PM

TC with a 50-135 are not a good mix. Very poor AF performance and degradation in IQ, much worse than just using a 55-300.

yusuf · 06-11-2013, 12:13 AM

Never tried TC on my 50-135 but IMO Tamron 70-200mm will give you the best IQ among all. However, you are right, I have rarely used mine due to the weight.

JimmyDranox · 06-11-2013, 04:04 AM

It is true that the 70-200mm are heavy. I recently bought one Sigma 70-200 F2.8 HSM II, and I carry it everywhere, and I feel it. But is a verry good lens, and F2.8 makes all the difference. I thought that I wiil never be able to shut stars with my camera hand held, but with this Sigma, and K-5 with vertical grip, I did it. Of course. it's not a perfect picture, but I've did it without my 90 pounds telescop mount, and even without a photo tripod, in a moment when I had the opportunity.

I tried to upload two picture, to ilustrate this, in the user gallery, but is the first time I'm doing this and I fall.

Shanti · 06-11-2013, 07:45 AM

Oh hard decisions here..but the TC is not a good option I gather..is the new Sigma 1.1Kg or 1,4Kg I get different figures on the weight? no place to even look at one here ..

JimmyDranox · 06-11-2013, 08:59 AM

It's not the new, but the old, nonstabilised, lens. And almost 1,4kg:

Sigma 70-200mm F2.8 EX DG APO Macro HSM II Lens Reviews - Sigma Lenses - Pentax Lens Review Database

Shanti · 06-11-2013, 01:00 PM

Originally posted by JimmyDranox

It's not the new, but the old, nonstabilised, lens. And almost 1,4kg:

Sigma 70-200mm F2.8 EX DG APO Macro HSM II Lens Reviews - Sigma Lenses - Pentax Lens Review Database

Ok on some web shops Amazon.de its 1.1kg ..thanks

06-10-2013, 07:20 PM	#1
Shanti Veteran Member Join Date: Jul 2012 Location: Western Denmark Photos: Gallery \| Albums Posts: 927	Da 50-135 + af 1.7 Hi anyone use the Da50-135 + Pentax AF 1.7 TC,thinking this will give me 229 tele when I need it,and not have to deal with the weight of the 70-200 Sigma or Tamrons..have DA 300 so then I have most of the tele range covered..really caught between which one to buy..price is the same about,and think the weight of the 70-200 will limit how much I carry it around,as the 300 is heavy enough Thanks again

06-10-2013, 07:25 PM	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,594	TBH I'd just got for a 70-200mm, as the AF will be faster and the IQ will be better. It's only 400g heavier Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

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06-10-2013, 07:33 PM	#3
twitch Veteran Member Join Date: Nov 2009 Posts: 4,571	TC with a 50-135 are not a good mix. Very poor AF performance and degradation in IQ, much worse than just using a 55-300.

06-11-2013, 12:13 AM	#4
yusuf Pentaxian Join Date: Nov 2008 Location: Palo Alto, CA Photos: Gallery Posts: 2,497	Never tried TC on my 50-135 but IMO Tamron 70-200mm will give you the best IQ among all. However, you are right, I have rarely used mine due to the weight.

06-11-2013, 04:04 AM	#5
JimmyDranox Veteran Member Join Date: Oct 2012 Location: Ploiesti, Romania Photos: Gallery \| Albums Posts: 1,632	It is true that the 70-200mm are heavy. I recently bought one Sigma 70-200 F2.8 HSM II, and I carry it everywhere, and I feel it. But is a verry good lens, and F2.8 makes all the difference. I thought that I wiil never be able to shut stars with my camera hand held, but with this Sigma, and K-5 with vertical grip, I did it. Of course. it's not a perfect picture, but I've did it without my 90 pounds telescop mount, and even without a photo tripod, in a moment when I had the opportunity. I tried to upload two picture, to ilustrate this, in the user gallery, but is the first time I'm doing this and I fall.

06-11-2013, 07:45 AM	#6
Shanti Veteran Member Join Date: Jul 2012 Location: Western Denmark Photos: Gallery \| Albums Posts: 927 Original Poster	Oh hard decisions here..but the TC is not a good option I gather..is the new Sigma 1.1Kg or 1,4Kg I get different figures on the weight? no place to even look at one here ..

06-11-2013, 08:59 AM	#7
JimmyDranox Veteran Member Join Date: Oct 2012 Location: Ploiesti, Romania Photos: Gallery \| Albums Posts: 1,632	It's not the new, but the old, nonstabilised, lens. And almost 1,4kg: Sigma 70-200mm F2.8 EX DG APO Macro HSM II Lens Reviews - Sigma Lenses - Pentax Lens Review Database

06-11-2013, 01:00 PM	#8
Shanti Veteran Member Join Date: Jul 2012 Location: Western Denmark Photos: Gallery \| Albums Posts: 927 Original Poster	Originally posted by JimmyDranox It's not the new, but the old, nonstabilised, lens. And almost 1,4kg: Sigma 70-200mm F2.8 EX DG APO Macro HSM II Lens Reviews - Sigma Lenses - Pentax Lens Review Database Ok on some web shops Amazon.de its 1.1kg ..thanks

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