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by VonSchnauzer

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7
votes
2answers
2k views

What extension tube options are there for the Pentax system?

From the reading I have done on extension tubes, I understand that some are just 'dumb' tubes while others have electronics that may allow for metering and autofocus to still work. Further, from this ...
8
votes
2answers
637 views

Extension tube set elements

My extension tube set (Soligor for Pentax AF + P/KA) was not working correctly on my DSLR, so I checked the tubes, and found an interesting difference. It has three tubes (12mm, 20mm, 36mm). This is ...