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09-11-2019, 09:00 PM   #1
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Generic Asahiflex extension tubes

I have found a set of 3 brushed chromed brass extension tubes that fit the thread of my Asahiflex 58mm f/2.4 lens. From what I have read this lens has the unusual 40.3mm thread. The tubes are in reasonable condition and unbranded.
Do they have any value or do the only collectable tubes have the Asahiflex logo?
Would appreciate any advice.

09-12-2019, 06:36 AM   #2
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Asahiflex extension tubes don't have any "asahi" or "asahiflex" marks as far as I know. A picture would help.
12-29-2019, 11:46 AM   #3
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Mine, which came in their original Asahiflex stamped box, are only marked on the rims but do not say Asahiflex or have a logo. I added an image to the blog post about my kit showing the rim markings.

Blog post is here,
Rim markings image is here
02-24-2020, 12:15 AM   #4
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You have a very nice lens, I would recommend getting a set of Asahiflex extension tubes they are very high quality and can be found for $ 10 - 20 dollars don't pay more. I have a set in aluminum and black. If you buy nice looking and good quality lens ect you can sell them for what you paid or more after being able to use it. So enjoy


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