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Pentax HD DA AF 1.4x AW - Adaptador para objetivo fotográfico (Black, smc PENTAX-DA 12-24mmF4ED AL[IF] smc PENTAX-DA 16-50mmF2.8ED AL[IF] SDM)

4.6 4.6 out of 5 stars 198 ratings

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Purchase options and add-ons

Brand Pentax
Focal Length Description 16-50 millimeters
Lens Type Telephoto
Compatible Mountings Pentax KAF3
Camera Lens Description 4

About this item

  • The Pentax Rear Converter has Optical systems optimized for APS-C sensors
  • Compatible with both in-lens AF(SDM,DC) and in-body AF
  • Dust & Water proof constitution (AW)
  • HD coating
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$313.70
Get it Mar 28 - Apr 10
Only 6 left in stock - order soon.
Ships from and sold by Amazon Japan.
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$696.95
Get it as soon as Monday, Mar 25
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Product Description

Rear Converter for K Mount DSLR Camera HD PENTAX-DA AF REAR CONVERTER 1.4X AW
Achieves AF compatible with master lenses and dust-proof and splash-proof construction.

1. Telephoto effect with 1.4x focal length
By attaching it between the body and the lens, the effect of magnifying the focal length of the master lens by 1.4 times Small and lightweight design with a thickness of only 0.8 inches (20 mm) to easily expand the shooting area. The master lens also increases the focal length as it is, so you can get a close-up effect when shooting close-up in close proximity.

2. Compatible with the first AF Pentax Rear Converter
In combination with AF lens, AF can be used on the master lens side. The AF system supports both in-lens motor drive (SDM, DC) and in-body motor drives. Compatible with K-3, K-50, K-30, K-5 II, K-5 II s, K-5, K-01, K-7, K-r. The AF function is also compatible with lenses with a synthetic F value up to F5.6.

3. Dust-proof and splash-proof construction that is safe for outdoor use.
This is our first 3-part rear converter with dust and splash-proof construction. The dust-proof and splash-proof body and lens allow you to shoot with confidence even in rainy weather and outdoor environments where dust and dirt are dily.

4. Excellent optical performance
With the latest optical design, it has good optical performance, you can enjoy shooting with the performance of master lenses. In addition, our proprietary high performance multi-coating "HD Coating", which reduces reflections inside the lens and effectively reduces ghosting and flares during harsh shooting conditions such as backlight and other light conditions, providing high contrast and clear viewing.

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Pentax HD DA AF 1.4x AW - Adaptador para objetivo fotográfico (Black, smc PENTAX-DA 12-24mmF4ED AL[IF] smc PENTAX-DA 16-50mmF2.8ED AL[IF] SDM)


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Customer reviews

4.6 out of 5 stars
4.6 out of 5
198 global ratings

Customers say

Customers like the quality, sharpness, and value of the camera lenses. For example, they mention it's a quality approach to getting a bit more magnification, it'll do a good job exactly as described, and it causes very little image degradation. That said, opinions are mixed on focus.

AI-generated from the text of customer reviews

15 customers mention15 positive0 negative

Customers are satisfied with the quality of the lens. They mention that it is an economical and quality approach to getting a bit more magnification, and that it does a good job exactly as described. The product is sturdy and well-made, and has no play or sign of weakness. Customers also say that the TC is absolutely superb, and is extremely well made.

"...The converter is sturdy, works wonderfully with the Pentax K3 Mark 3, and the 55-300PLM. The lens focuses just as fast and surely as before...." Read more

"...It is extremely well made, and designed so that the effective focal length of the lens+TC combination is reported to the camera...." Read more

"picture quality not has good. it is Pentax made , which is very good quality ." Read more

"...you is that I rolled the dice and on my Pentax K3-II, this thing works PERFECTLY with my ALL of my Pentax glass, my Sigma 17-70, 17-300, 120-400mm..." Read more

6 customers mention6 positive0 negative

Customers are satisfied with the image quality of the lens. They mention that it is easy to mount and use, and has not affected picture quality negatively. The lens is still plenty bright and causes very little image degradation. The IQ of the images is excellent, and the auto focus works great.

"...There is no appreciable loss of image quality when using this teleconverter...." Read more

"...The IQ of the images are excellent.Other brands I have tried can't hold a candle to this one...." Read more

"...It's easy to mount and use, and hasn't affected picture quality negatively at all. Lightweight so it doesn't make the camera too heavy to enjoy...." Read more

"...At F/5.6, it is still plenty bright and causes very little image degradation. It turns that very sharp lens into a sharp 420mm. Great!" Read more

4 customers mention4 positive0 negative

Customers are satisfied with the sharpness of the camera lens. They mention that the auto focus works great, and the IQ is just as sharp.

"...It is so sharp, that when I use it with my SMC Pentax-DA* 300mm f4 lens I have to look at the EXIF data in order to discern whether or not I used..." Read more

"...focusing seems exactly as fast with the TC as without, and the IQ is just as sharp (which you would hate to compromise on this fine lens)...." Read more

"Very sharp-" Read more

"...I use it with 100mm f2.8 macro and 60-250mm f4 telephoto lenses. Sharp and clear and auto focus works great." Read more

4 customers mention4 positive0 negative

Customers appreciate the value of the camera lenses. They mention that it is well worth the price to have a TC that retains the image quality.

"...It is not an inexpensive piece of glass, but in my opinion it is well worth the price to have a TC that retains the sharpness of the lens with which..." Read more

"This came from Japan in less than a week. The seller was excellent. As noted you by other reviewers in dark settings auto focus suffers...." Read more

"...results.This item was purchased through AMAZON at a darn good price." Read more

"An economical and quality approach to getting a bit more magnification with your existing lens...." Read more

3 customers mention3 positive0 negative

Customers like the reach of the lens. They say it's great for that extra bit of reach, and increases the reach.

"...Gives you some distance, for a fraction of the cost of the Pentax super long distance lens. Also saves a large amount of room in the camera bag" Read more

"Love the way it increases the reach of my DA 60-250. Sturdy. Solid. Dependable. Pentax Ricoh Quality." Read more

"Great for that extra bit of reach..." Read more

6 customers mention4 positive2 negative

Customers have mixed opinions about the focus of the camera lens. Some mention that the focusing seems exactly as fast with the TC as without, and the IQ is just as sharp. However, others say that it doesn't work for their 18-135mm and 55-300mm lenses, and that it lacks the option of manual focus.

"...The lens focuses just as fast and surely as before. There is no vignetting detectable...." Read more

"...The 1st (and absolute awesome) lens wont even focus all together (smc PENTAX-DA 18-135mm F3.5-5.6 ED AL [IF] DC WR)...." Read more

"...This Pentax 1.4x rear teleconverter is a genuine auto-focus converter and it works beautifully with big Pentax glass...." Read more

"...The focusing seems exactly as fast with the TC as without, and the IQ is just as sharp (which you would hate to compromise on this fine lens)...." Read more

Works beautifully, no perceptible loss of detail. Sturdy!
5 Stars
Works beautifully, no perceptible loss of detail. Sturdy!
I was really curious (and a little doubtful) that the teleconverter would work with my Pentax 55-300 PLM and not slow down focus and not add distortion or undue optical degradation.I do a lot of very low light animal photography. I cleanup the pictures for noise, and had no preconceived notions of how well the converter would work.The converter is sturdy, works wonderfully with the Pentax K3 Mark 3, and the 55-300PLM. The lens focuses just as fast and surely as before. There is no vignetting detectable. (I add some vignetting in post just to highlight the subject). The photos above are all low-light shots under very difficult conditions. The squirrel with belly presented was the only one in "reasonable" conditions. I frequently shoot at full 300mm and around f9.0 which is almost wide open at ISO 6400 - 25600. You do lose an f stop, as discussed in the documentation.The mount is solid, sure, and has no play or sign of weakness.This is a very good piece of gear to have at your disposal when you need that extra reach. I recommend it.Shortly I will do some testing on the Pentax 70-200 f2.8 and 150-450 f4.5/5.6 lenses.Highly recommended!
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Top reviews from the United States

Reviewed in the United States on August 3, 2022
Customer image
5.0 out of 5 stars Works beautifully, no perceptible loss of detail. Sturdy!
Reviewed in the United States on August 3, 2022
I was really curious (and a little doubtful) that the teleconverter would work with my Pentax 55-300 PLM and not slow down focus and not add distortion or undue optical degradation.
I do a lot of very low light animal photography. I cleanup the pictures for noise, and had no preconceived notions of how well the converter would work.
The converter is sturdy, works wonderfully with the Pentax K3 Mark 3, and the 55-300PLM. The lens focuses just as fast and surely as before. There is no vignetting detectable. (I add some vignetting in post just to highlight the subject). The photos above are all low-light shots under very difficult conditions. The squirrel with belly presented was the only one in "reasonable" conditions. I frequently shoot at full 300mm and around f9.0 which is almost wide open at ISO 6400 - 25600. You do lose an f stop, as discussed in the documentation.
The mount is solid, sure, and has no play or sign of weakness.
This is a very good piece of gear to have at your disposal when you need that extra reach. I recommend it.
Shortly I will do some testing on the Pentax 70-200 f2.8 and 150-450 f4.5/5.6 lenses.
Highly recommended!
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Reviewed in the United States on December 31, 2014
18 people found this helpful
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Reviewed in the United States on September 25, 2023
Reviewed in the United States on December 20, 2018
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Reviewed in the United States on October 17, 2020
Reviewed in the United States on December 31, 2016
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Top reviews from other countries

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Jonathan Massot
5.0 out of 5 stars Great investment
Reviewed in Canada on August 15, 2021
bozzaplaza
5.0 out of 5 stars Qualità
Reviewed in Italy on February 27, 2024
Thierry PIERRE
5.0 out of 5 stars Indispensable !
Reviewed in France on November 25, 2023
CaptnLens
5.0 out of 5 stars Hochwertiger, voll integrierter TENTAX TC
Reviewed in Germany on July 16, 2023
雨宮 高一
5.0 out of 5 stars 使用感
Reviewed in Japan on November 9, 2023