Looking for adapter for Pentax K10D

On Sun, 26 Aug 2007 03:08:00 GMT, omcdaniel.abcd RemoveThis @mindspring.com (Olin K.
McDaniel) wrote:

>Trouble is - I can't find any such
>combination of step down rings.

Search Adorama's vast collection of step-up/down rings and reverse couplers. I'd
be surprised if you couldn't find the right combination there to get any two
threaded ring sizes to mate up. Inexpensively too.
 >> Stay informed about: Looking for adapter for Pentax K10D 

On Aug 25, 11:08 pm, omcdaniel.a....RemoveThis@mindspring.com (Olin K. McDaniel)
wrote:
> Recently I bought a Pentax K10D DSLR camera with their 40mm "pancake"
> lens for a specific use, since that lens is compatible with close
> coupling to a spotting scope's eyepiece. (As far as I've learned
> that's the only commonly available lens for any DSLR that can be so
> used.) And I'm enjoying the use, but that's not what this post is
> about.
>
I am just responding to this part of your post. The usual way to
couple a DSLR to a spotting scope is to get a T adaptor for the scope,
if available, and then get the corresponding T adaptor for your
specific camera. That way, the image is projected directly onto the
camera sensor. I have used this arrangement with a Celestron C90. The
Celestron T adaptor replaces the eyepiece and then the camera connects
to it with its adaptor. I will add, however, that it was very
difficult to manually focus the spotting scope at such high
magnifications.
 >> Stay informed about: Looking for adapter for Pentax K10D 

On Sun, 26 Aug 2007 05:39:47 -0700, pixel_a_ted
<pixel_a_ted DeleteThis @yahoo.com> wrote:

>On Aug 25, 11:08 pm, omcdaniel.a... DeleteThis @mindspring.com (Olin K. McDaniel)
>wrote:
>> Recently I bought a Pentax K10D DSLR camera with their 40mm "pancake"
>> lens for a specific use, since that lens is compatible with close
>> coupling to a spotting scope's eyepiece. (As far as I've learned
>> that's the only commonly available lens for any DSLR that can be so
>> used.) And I'm enjoying the use, but that's not what this post is
>> about.
>>
>I am just responding to this part of your post. The usual way to
>couple a DSLR to a spotting scope is to get a T adaptor for the scope,
>if available, and then get the corresponding T adaptor for your
>specific camera. That way, the image is projected directly onto the
>camera sensor. I have used this arrangement with a Celestron C90. The
>Celestron T adaptor replaces the eyepiece and then the camera connects
>to it with its adaptor. I will add, however, that it was very
>difficult to manually focus the spotting scope at such high
>magnifications.
>
>

Yes, Ted, I know about that option and gave it some serious thought.
However, I've been using a Swarovski AT-80-HD spotting scope with my
Nikon CoolPix cameras for over 5 years, and want to retain the option
of using the 20X to 60X eyepiece. Plus, my attempts to get much help
from Swarovski re their adapter were usually ignored. I learned of
this Pentax camera and the specific lens from Andy Bright of the UK,
and a friend of his in the UK, Paul Hartnett, gave me all sorts of
help. So, I chose that route, and am very happy with the results as
far as digiscoping is concerned. I'll highly recommend this approach
in fact. My interest in using the tele-extender with the Pentax is to
expand my capabilities with it for other uses than digiscoping,
without investing in a high priced telephoto lens of perhaps 300 or
400 mm.

Incidentally, I have a friend who is just starting in digiscoping, and
he bought a used Kowa spotting scope and their adaptor as well. He
too is having considerable difficulty focusing the pair (I won't say
it's all the scope's focus though! I now think it may be something to
do with the way he's using the camera. But may be wrong!)

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 >> Stay informed about: Looking for adapter for Pentax K10D 

On Sun, 26 Aug 2007 03:30:00 GMT, Theo Hilford <nomail RemoveThis @noaddress.com>
wrote:

>On Sun, 26 Aug 2007 03:08:00 GMT, omcdaniel.abcd RemoveThis @mindspring.com (Olin K.
>McDaniel) wrote:
>
>>Trouble is - I can't find any such
>>combination of step down rings.
>
>Search Adorama's vast collection of step-up/down rings and reverse couplers. I'd
>be surprised if you couldn't find the right combination there to get any two
>threaded ring sizes to mate up. Inexpensively too.
>
>
Thanks, I'll check out Adorama, I have used them some in the distant
past. However, in the recent years I've used B & H, and they don't
seem to have the necessary combo of "step down" rings. But you might
elaborate on what you mean by "reverse coupler", I've not found
anything like that.

To reply by email, please remove "abcd" from Return address
-----------------------------------------------------
"Ignorance is treatable, Stupidity is incurable. Sometimes
the difference is hardly distinguishable, however."
 >> Stay informed about: Looking for adapter for Pentax K10D 

On Sun, 26 Aug 2007 16:35:45 GMT, omcdaniel.abcd.TakeThisOut@mindspring.com (Olin
K. McDaniel) wrote:

>On Sun, 26 Aug 2007 03:30:00 GMT, Theo Hilford <nomail.TakeThisOut@noaddress.com>
>wrote:
>
>>On Sun, 26 Aug 2007 03:08:00 GMT, omcdaniel.abcd.TakeThisOut@mindspring.com (Olin K.
>>McDaniel) wrote:
>>
>>>Trouble is - I can't find any such
>>>combination of step down rings.
>>
>>Search Adorama's vast collection of step-up/down rings and reverse couplers. I'd
>>be surprised if you couldn't find the right combination there to get any two
>>threaded ring sizes to mate up. Inexpensively too.
>>
>>
>Thanks, I'll check out Adorama, I have used them some in the distant
>past. However, in the recent years I've used B & H, and they don't
>seem to have the necessary combo of "step down" rings. But you might
>elaborate on what you mean by "reverse coupler", I've not found
>anything like that.

Try this link http://www.photofilter.com/Step_up.htm
 >> Stay informed about: Looking for adapter for Pentax K10D 

On Sun, 26 Aug 2007 03:23:33 GMT, Charles <ckraft.DeleteThis@SPAMTRAP.west.net>
wrote:

>On Sun, 26 Aug 2007 03:08:00 GMT, omcdaniel.abcd.DeleteThis@mindspring.com (Olin
>K. McDaniel) wrote:
>
>>Recently I bought a Pentax K10D DSLR camera with their 40mm "pancake"
>>lens for a specific use, since that lens is compatible with close
>>coupling to a spotting scope's eyepiece. (As far as I've learned
>>that's the only commonly available lens for any DSLR that can be so
>>used.) And I'm enjoying the use, but that's not what this post is
>>about.
>>
>>Much to my surprise, I found the glass in this lens is quite small in
>>diameter, but has a large housing - and is made to accept 49mm
>>filters. Now, since I've owned for years several Nikon CoolPix
>>cameras, including a couple of CP-995s, and I bought several years ago
>>the Nikon 3X tele-extender lens - it occured to me to see if that
>>tele-extender might work with the new Pentax. So, I tested it by
>>crudely mounting the tele-extender just in front of the Pentax 49mm
>>lens, and sure enough it works very nearly the same as with the Nikon
>>cameras.
>>
>>My problem now is finding some way of attaching this tele-extender to
>>the 49mm threaded socket on the Pentax, such as using adapter rings.
>>Just to give the whole story, the tele-extender has 28mm male threads.
>>My initial thought would be to simply get a 49 to 37mm step up ring,
>>and a 37 to 28mm step up ring and that would do it. NOT SO! What is
>>needed after doing some careful thinking, is not step up rings, but
>>rather step down rings. Trouble is - I can't find any such
>>combination of step down rings.
>>
>>Can anyone suggest a solution, or tell me where I might find an
>>adapter of some sort that would work?
>>
>>Thanks, Olin McDaniel
>>

>
>I wonder if you might not be able to make something, starting with the
>Nikon UR-E2


Thanks for the suggestion, but I can't find any listing of that item
in the latest B & H catalog, just did a search thru it. Can you
elaborate what exactly it might be? In the meantime I'll do a Google
search for it.

Olin

To reply by email, please remove "abcd" from Return address
-----------------------------------------------------
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 >> Stay informed about: Looking for adapter for Pentax K10D 

On Sun, 26 Aug 2007 16:40:34 GMT, omcdaniel.abcd.RemoveThis@mindspring.com (Olin
K. McDaniel) wrote:
>
>Thanks for the suggestion, but I can't find any listing of that item
>in the latest B & H catalog, just did a search thru it. Can you
>elaborate what exactly it might be? In the meantime I'll do a Google
>search for it.


All I know about it what I found on Google, I was looking after I read
your message.
 >> Stay informed about: Looking for adapter for Pentax K10D 

On Sun, 26 Aug 2007 16:40:34 GMT, omcdaniel.abcd.RemoveThis@mindspring.com (Olin
K. McDaniel) wrote:

(snip)
>>I wonder if you might not be able to make something, starting with the
>>Nikon UR-E2
>
>
>Thanks for the suggestion, but I can't find any listing of that item
>in the latest B & H catalog, just did a search thru it. Can you
>elaborate what exactly it might be? In the meantime I'll do a Google
>search for it.
>
>Olin
>
>To reply by email, please remove "abcd" from Return address
>-----------------------------------------------------
>"Ignorance is treatable, Stupidity is incurable. Sometimes
>the difference is hardly distinguishable, however."


A bit more, it looked from what description I could find, that it has
a 28 mm female thread on one end, so it would accept the add-on lenses
you have now. I'm not certain what the other end is, but it could be
cut off and glued to a lens cap that fits the Pentax lens you have
now. Make a hole in the lens cap, of course.
 >> Stay informed about: Looking for adapter for Pentax K10D 

On Sun, 26 Aug 2007 16:35:45 GMT, omcdaniel.abcd RemoveThis @mindspring.com (Olin K.
McDaniel) wrote:

>On Sun, 26 Aug 2007 03:30:00 GMT, Theo Hilford <nomail RemoveThis @noaddress.com>
>wrote:
>
>>On Sun, 26 Aug 2007 03:08:00 GMT, omcdaniel.abcd RemoveThis @mindspring.com (Olin K.
>>McDaniel) wrote:
>>
>>>Trouble is - I can't find any such
>>>combination of step down rings.
>>
>>Search Adorama's vast collection of step-up/down rings and reverse couplers. I'd
>>be surprised if you couldn't find the right combination there to get any two
>>threaded ring sizes to mate up. Inexpensively too.
>>
>>
>Thanks, I'll check out Adorama, I have used them some in the distant
>past. However, in the recent years I've used B & H, and they don't
>seem to have the necessary combo of "step down" rings. But you might
>elaborate on what you mean by "reverse coupler", I've not found
>anything like that.

I might have not used the proper term, reverse-couplers, it's been years since I
bought one. I'm referring to an adapter ring that has male-male threads on it.
So that you can mate one lens in reverse to the front of another by just
screwing them together by their different-sized filter threads. Most often used
for using prime lenses for macro-photography. Adorama has a wide selection of
them in varying sizes. Less expensive than anywhere else I searched. I use one
to mount an excellent 55mm SM Takumar SLR lens to my P&S cameras for
macro-photography on occasion.

Adorama also has an extensive collection of T-Mount threaded adapters, Pentax
thread adapters, and a host of other specialty thread-size rings, like the
Series-(roman numeral) stuff, where I can go from a Series-VII thread to a 58mm
thread. I use one of those to mount a specialty fish-eye lens to my digitals.
I've not run into any situation where their extensive set of adapters didn't
solve it. Including a hard-to-find Pentax lens-mount thread to Olympus SLR
bayonet-mount when I wanted to get extra use out of an exceptional (but very
old) 24mm f.l. wide-angle Pentax lens and put it on my Olympus SLR bodies.

It may take some hunting with their search feature to find what you are after
but I bet the right combo is there. The lowest prices on these types of items
that I ever found anywhere. Most other places (suggested by some people in this
thread) charge a fortune for such simple to manufacture items. I guess those
suppliers feel that with some adapters being so unique in sizes and threads that
they can get away with charging outrageous prices to people that don't know
better. Their loss, I found a better source.
 >> Stay informed about: Looking for adapter for Pentax K10D 

On Sun, 26 Aug 2007 10:55:28 -0700, irwell <hook.RemoveThis@yahoo.com> wrote:

>On Sun, 26 Aug 2007 16:35:45 GMT, omcdaniel.abcd.RemoveThis@mindspring.com (Olin
>K. McDaniel) wrote:
>
>>On Sun, 26 Aug 2007 03:30:00 GMT, Theo Hilford <nomail.RemoveThis@noaddress.com>
>>wrote:
>>
>>>On Sun, 26 Aug 2007 03:08:00 GMT, omcdaniel.abcd.RemoveThis@mindspring.com (Olin K.
>>>McDaniel) wrote:
>>>
>>>>Trouble is - I can't find any such
>>>>combination of step down rings.
>>>
>>>Search Adorama's vast collection of step-up/down rings and reverse couplers. I'd
>>>be surprised if you couldn't find the right combination there to get any two
>>>threaded ring sizes to mate up. Inexpensively too.
>>>
>>>
>>Thanks, I'll check out Adorama, I have used them some in the distant
>>past. However, in the recent years I've used B & H, and they don't
>>seem to have the necessary combo of "step down" rings. But you might
>>elaborate on what you mean by "reverse coupler", I've not found
>>anything like that.
>
>Try this link http://www.photofilter.com/Step_up.htm


Thank a lot! That was just what I needed. I've searched all over
with only partial success, there was one on eBay that I could have
used but it "got gone" before I had a chance. And until this very
minute I had not found a pair that would work for what I want to do -
until you sent me here. My solution will be to buy a 49 to 37 mm and
a 37 to 28 mm pair and connect them together. Again, thanks.


To reply by email, please remove "abcd" from Return address
-----------------------------------------------------
"Ignorance is treatable, Stupidity is incurable. Sometimes
the difference is hardly distinguishable, however."
 >> Stay informed about: Looking for adapter for Pentax K10D