Pentaxian Registered: February, 2010 Location: Blunsdon,Wiltshire, UK Posts: 1,504 | |
Loyal Site Supporter Registered: August, 2010 Location: Massachusetts Posts: 59,137 | | Review Date: April 29, 2019 | Recommended
| Rating: 8 |
| Pros: | works well on a good lens | | Cons: | do not know of any current lenses that are compatible | |
I've had good results with this converter on my 200mm SMCA ED macro and a Tamron 400mm f4 Adaptall II. Pity it cannot be mounted on any current lenses (SFAIK = certainly no Pentax lenses, but I'm not sure about aftermarket telephotos).
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Site Supporter Registered: December, 2010 Location: Oregon Posts: 85 | | Review Date: August 29, 2013 | Recommended | Price: $265.00
| Rating: 9 |
| Pros: | Build quality, magnifying factor 2x | | Cons: | Limited compatibility. | |
I bought this lens to use with my DA*200mm lens and it worked quite nicely. I had never used the catch in focus feature in my K-5, but it has worked great for shooting some wildlife photographs.
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New Member Registered: October, 2008 Location: Paris Posts: 1 | | Review Date: November 25, 2010 | Recommended | Price: $130.00
| Rating: 9 |
| Pros: | built quality and very few loss of picture quality | | Cons: | only for few lenses | |
After filing carefully the barrel , it fits perfectly with my pentax k 200mm f:2,5 giving a 400mm f:5,6 for a limited weight an with a good minimum focus distance.
for bright days adding a second converter k T6 2x gives a 800mm 11 for only 1,3 kg
So, I can already use it waiting a future 300mm 2,8
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Senior Member Registered: December, 2008 Location: Oxford, UK Posts: 276 | | Review Date: April 21, 2010 | Recommended | Price: $100.00
| Rating: 8 |
| Pros: | Works well | | Cons: | Slight loss of IQ | |
I got this recently at an auction, it came with a A-400mm 5.6. The $100 price is an equal share of the price of the lot it was in. The day after I got it, I saw one on Amazon for over $500.
This converter does exactly what it says on the label. My draw back is the only lens I have to use it with is the 400mm. It turns it into an absolute beast. I have had problems with a loss of IQ, but I think this is more to do with my lack of a suitable tripod for this combination and my desperate need for a focusing screen on my K20. Would I recommend it, absolutely. Would I buy at the Amazon price, probably not.
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