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What is 49 mm thread mount
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PostPosted: Sun Apr 26, 2009 7:19 am    Post subject: What is 49 mm thread mount Reply with quote

Anyone know? There is this Sonnar 180/2.8 for sale with 49 mm thread? First I thought it was typo but then it occurred to me that I have received somewhere a rear cap that was similar larger that m42. I measured it and it is about 5 cm.

Some medium format mount?


PostPosted: Sun Apr 26, 2009 9:22 am    Post subject: Reply with quote

I have no idea, sorry.


PostPosted: Sun Apr 26, 2009 10:56 am    Post subject: Reply with quote

Odd one. Bronica was 57mm, Miranda (I think) was 44mm.


PostPosted: Sun Apr 26, 2009 11:02 am    Post subject: Reply with quote

Is it a typo for 39mm? that would make some sense


PostPosted: Sun Apr 26, 2009 12:04 pm    Post subject: Reply with quote

Must be a typo for 42 mm I think. And the "rear cap" seems to be some other cap, as I look closer. Someone has used it as a substitute for something. I received it with a batch that had lost of weird stuff but they were all camera-lens-related. Embarassed

I'll probably see the lens tomorrow and make a report if it indeed is 49 mm. Wink


PostPosted: Sun Apr 26, 2009 12:36 pm    Post subject: Reply with quote

49mm filter thread i am sure. They do that mistake often :p, reading the diameter at the front, when there is a filter attached.. Wink


PostPosted: Sun Apr 26, 2009 12:55 pm    Post subject: Reply with quote

Sonnar 180/2.8 is huge lens, it can't be filter thread. It has 86mm thread for filters.


PostPosted: Sun Apr 26, 2009 2:52 pm    Post subject: Reply with quote

no-X wrote:
Sonnar 180/2.8 is huge lens, it can't be filter thread. It has 86mm thread for filters.


Right. My brain has sundays off.


PostPosted: Sun Apr 26, 2009 3:47 pm    Post subject: Reply with quote

It's OK. My brain is permanently off Wink


PostPosted: Mon Apr 27, 2009 8:22 am    Post subject: Reply with quote

M42 it was indeed - Jena electric version. Not new but very good condition, I think.


PostPosted: Mon Apr 27, 2009 12:34 pm    Post subject: Reply with quote

Poolhall wrote:
Is it a typo for 39mm? that would make some sense


I agree, makes more sense, I think some older RF used this 39mm screw mount, sometimes called Leica screw mount I believe.


PostPosted: Mon Apr 27, 2009 1:07 pm    Post subject: Reply with quote

No it is m42 - I had it in my hand. And believe me it was difficult to let go ..