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09-04-2009, 09:45 AM   #1
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TC 2x

Hi I have my new Pentax K7 for my 50th birthday last July. I have 50-200mm len with TC 2x. I tried to sharpness the picture but still blurry when zoom in LCD. How do I do to adjust it for shaprness. Should I change "A" 400mm? or whatever?

Thanks

09-04-2009, 07:40 PM   #2
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QuoteOriginally posted by Danny Delcambre Quote
Hi I have my new Pentax K7 for my 50th birthday last July. I have 50-200mm len with TC 2x. I tried to sharpness the picture but still blurry when zoom in LCD. How do I do to adjust it for shaprness. Should I change "A" 400mm? or whatever?

Thanks
I don't understand your question.

Either way, adding a 2X teleconverter degrades the IQ quite a bit.
09-04-2009, 08:15 PM   #3
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Very few TC's will provide very good image quality, especially when used with a consumer zoom lens like the 50-200. If you want better image quality, you'll need a better lens than the 50-200 + TC combination. Realistically, the 55-300 plus enough cropping to get to a 400mm field of view would be my vote,if 400mm is all you need.
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