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11-23-2015, 06:18 PM   #1
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HD Pentax-DA 560mm F5.6 ED AW

How well does this work with the Pentax TC making an 784 mm f/8.0 lens?
Is auto focus still reliable on a K-3 with the TC and this lens?

11-23-2015, 07:00 PM   #2
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It autofocuses as any F8 would- decently well in good light, not too reliably when the EV is low.

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11-23-2015, 10:43 PM   #3
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QuoteOriginally posted by 1234567890 Quote
How well does this work with the Pentax TC making an 784 mm f/8.0 lens?
Is auto focus still reliable on a K-3 with the TC and this lens?

Take a look at Kameko's photos, here or on Flickr. She's a Pentax Forums member and works with the 560 with 1.4 TC, getting great results.


https://flic.kr/p/B8cVzX
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