Does the teleconverter help?

John jsessoms002 at nc.rr.com
Mon Jun 22 15:31:03 EDT 2020


On 6/17/2020 16:12:20, John Francis wrote:
> On Fri, Jun 12, 2020 at 11:48:50PM -0700, Larry Colen wrote:
>>
>>
>>> On Jun 12, 2020, at 11:28 PM, Alan C <cole at lantic.net> wrote:
>>>
>>> Igor, I did a lot of tests too. The TC shots were always inferior to the cropped shots without TC. I only have consumer lenses so I can't comment on how a TC performs with Limited or Star lenses. Paul's bird images with the D-FA 150-450 with 1.4x TC (=630mm) are so good which seems to suggest one need to start with top line glass. I'll dig out some of my test shots & post. I had a 1.7x TC AF converter from film days which I have now sold.
> 
> If you want to do some comparison testing, I know where you can lay your hands on a whole load of DA* and FA* lenses (and one A*) and the 1.7x AF and DA 1.4x TCs ...
> 

Is that the "Pentax 1.4x HD PENTAX-DA AF Rear Converter AW for K-Mount Lenses"?

If so, how much do you want for it?


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Science - Questions we may never find answers for.
Religion - Answers we must never question.



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