screw mount adaptor

2001-06-22 Thread B. K. Lane Sr.

Hi,

I have a quick question. I have been looking around to find
a adaptor for this new screw mount camera I have so that 
I can use the bayonet type lens that I have with it. 

My question is.. is there such a thing? and if so .. what
is it called? I can not seem to come up with anything 
other then the use your old screw mount lens on your new
bayonet mount camera. And I need it for the other way 
around.

Thanks in advance for the help.
Rebecca

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RE: screw mount adaptor

2001-06-22 Thread admin

These adapters do exist. Smile Photo (one of the less reputable places that
advertise in the back of every U.S. photo magazine) sells them for $49.95.
At least one person on the list has one (Tiger Moses, I think?) so you may
get some actual use impressions.
I believe someone used one of these adapters to put one of th elimited lenses
on a Spotmatic. No idea what the photos it produced looked like.

-- Original Message --

Hi,

I have a quick question. I have been looking around to find
a adaptor for this new screw mount camera I have so that 
I can use the bayonet type lens that I have with it. 

My question is.. is there such a thing? and if so .. what
is it called? I can not seem to come up with anything 
other then the use your old screw mount lens on your new
bayonet mount camera. And I need it for the other way 
around.

Thanks in advance for the help.
Rebecca




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Re: screw mount adaptor

2001-06-22 Thread Francis Tang

On Fri, Jun 22, 2001 at 08:47:26AM -0700, B. K. Lane Sr. wrote:
 Hi,
 
 I have a quick question. I have been looking around to find
 a adaptor for this new screw mount camera I have so that 
 I can use the bayonet type lens that I have with it. 
 
 My question is.. is there such a thing? and if so .. what
 is it called? I can not seem to come up with anything 
 other then the use your old screw mount lens on your new
 bayonet mount camera. And I need it for the other way 
 around.

Dear Rebecca,

Assuming you are talking about an m42 screwmount body, there seems to be no ideal 
solution for what you're looking for.  You can buy an adapter with optical elements 
that allow you to use K-mount lenses on a screw mount body, but the extra optics 
degrade image quality and I've heard they behave a bit like a tele adapter.  The other 
option is to go for something without optics but then you lose infinity focus, which 
might be alright if you only want to do macro work.

The problem is a physical one: the m42 mount is narrower than the K-mount yet they 
have the same registration distance.  But if the screw mount has a shorter 
registration distance, e.g. a leica screw mount body, then it should be possible - 
though I'm not sure if they exist.

Not sure where to buy the adapters if you are happy with optical degredation or loss 
of infinity focus.  I think I've seen them before, probably in BH.

Yours sincerely,

Frank.

-- 
Francis Tang, Postgraduate Research Student, LFCS, Edinburgh.
Visiting: AG14, FB Mathematik, TU Darmstadt, Deutschland.
Tel: +49 174/3545241 (D2 Voda)  ZNr: S215/215
Email: [EMAIL PROTECTED] WWW: http://www.dcs.ed.ac.uk/home/fhlt/
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RE: screw mount adaptor

2001-06-22 Thread Maciej Marchlewski



 -Original Message-
 From: [EMAIL PROTECTED]
 [mailto:[EMAIL PROTECTED]]On Behalf Of B. K. Lane Sr.
 My question is.. is there such a thing? and if so .. what
 is it called?

As far as I know: no, sorry - but I might be wrong so don't worry. If I'm
not mistaken at the moment its imposible to build such a thing - a K-mount
is bigger than the 42mm screw mount.

Maciej

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