I see what you mean now. Yes, I have the actual product and all of the
original documentation that came with it. I think this confusion comes down to
a "translation" error. The original Japanese instruction sheet correctly
depicts the adapter without any threads while the English translated one shows
some threads. Here's a comparison of the two documents:
http://olympus.dementix.org/misc/copy_stand_adapters.jpg
This 55 -> 49 adapter is really only useful for the copy stand.
-mark
On 13-May-19, at 7:32 AM, Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx> wrote:
> That's a great find but we're apparently coming at our views from
> different sources. If I read you correctly you're looking at the
> *actual product* and stating that the outside of the 49mm end is not
> threaded and the inside has ridges. What I've been looking at is the
> handy_copy_stand.pdf. That's a copy of the user's manual in PDF form
> that was included in the eSIF as distributed on CD. That clearly shows
> the 55/49mm adapter to have threads on the outside of the 49mm end as
> would a 49mm filter. The interior ridges are not illustrated.
>
> Chuck Norcutt
>
>
> On 5/18/2013 9:29 PM, Mark Dapoz wrote:
>>
>> I had to dig out my sample of the copy stand to figure out exactly
>> what is going on. The 43 -> 49 and 22.5,43.5 -> 49 adapters do
>> indeed have threads only on the smaller side, the 49mm copy stand
>> side is completely smooth. The 55 -> 49 adapter on the other hand
>> appears to have threads on both sides of the adapter, but on closer
>> inspection the 49mm side "threads" aren't really threads. The inside
>> of the adapter has ridges which makes it appear to have threads but
>> they aren't. I suppose Olympus did this to cut down on any light
>> reflection since the adapter is going into a larger lens opening. So
>> the illustration in the SIF is correct, only the assumption that
>> they're threads is incorrect.
>>
>> -mark
>>
>> On 13-May-18, at 7:45 PM, Chuck Norcutt
>> <chucknorcutt@xxxxxxxxxxxxxxxx> wrote:
>>
>>> I don't know what you refer to as the "SIF" other than source
>>> documents for the eSIF that I don't have. But the eSIF does
>>> reference the user's manual for the Handy Copy Stand which does
>>> show the 3 adapters available for it. One of those is the 49/55
>>> and, as you stated, the drawing shows the 49mm side as threaded
>>> whereas the other two adapters are not threaded on both sides. I
>>> agree. It must be an error.
>>>
>>> Chuck Norcutt
>>>
>>> On 5/18/2013 4:00 PM, piers@xxxxxxxx wrote:
>>>> The 55-49 adapter appears in the SIF (not eSIF, where it is said
>>>> to be optional) as part of the Handy Copy Stand set, for just the
>>>> same application, and the illustration is consistent with your
>>>> description, except it has a thread on the 49mm end. I think
>>>> that's an error, as the smaller adaptors don't have a thread.
>>>>
>>>> Piers
>>>>
>>>> On 18/05/2013, Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
>>>> wrote:
>>>>> The next question is whether the 49/55 adapter was originally
>>>>> supplied with the bellows. Does anyone actually have one of
>>>>> these and does it look as I described that I think it must
>>>>> look? Searching the eSIF (briefly) did not reveal such a part
>>>>> to me.
>>>>>
>>>>> I've got to think about how to replicate a part like that for
>>>>> reversing my 90/2.5 Viv S1 macro which a 58mm filter. If
>>>>> there's a 49 to 55mm filter adapter that would work. You'd
>>>>> need the ring from the 49mm filter to make a 51mm diameter
>>>>> attachment point for the bellows.
>>>>>
>>>>> Chuck Norcutt
>>>>>
>>>>>
>>>>> On 5/18/2013 3:03 AM, piers@xxxxxxxx wrote:
>>>>>> Splendid stuff, Chuck, it all does now make sense in a way
>>>>>> that eSIF and SIF (which I also reviewed) don't even
>>>>>> approach. It was late, I didn't follow my own advice to just
>>>>>> try it!
>>>>>>
>>>>>> Piers
>>>>>>
>>>>>> On 18/05/2013, Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
>>>>>> wrote:
>>>>>>> You're inferring stuff rather than actually measuring the
>>>>>>> bellows. I have done my due diligence and discovered that
>>>>>>> the eSIF is perfectly correct. The reason that a Series VI
>>>>>>> is used is that hole is supposed to take a filter... a
>>>>>>> Series VI size filter... which Wiki tells me thus: Series
>>>>>>> number Filter size Adapter ring VI 41.3 mm 44 mm My
>>>>>>> handy dandy millimeter rule tells me that the thread on the
>>>>>>> back of the lens board is (whaddya know) 44mm. I
>>>>>>> discovered that very quickly since no 49mm filter would fit
>>>>>>> there. That threaded hole is specifically for a filter and
>>>>>>> not for reversing lenses.
>>>>>>>
>>>>>>> Once again, the bellows manual tells you nothing about that
>>>>>>> filter provision. Your confusion about reversing lenses I
>>>>>>> think comes about from assuming that it's done the way you
>>>>>>> would on a camera body by attaching two lenses together
>>>>>>> joined by a male threaded ring with threads on each side to
>>>>>>> match the lenses to be joined. You've assumed that the
>>>>>>> 49/55 adapter is one of those rings... but it is not. It
>>>>>>> has a totally different function and isn't really 49mm on
>>>>>>> one end.
>>>>>>>
>>>>>>> Once you turn the front lens board around you don't need
>>>>>>> any sort of threaded adapter since the OM lens mount on the
>>>>>>> lens board is now facing the camera. Just install the lens
>>>>>>> on the normal lens mount and it, like the lens board, is
>>>>>>> now reversed. Where the 49/55 adapter comes in has to do
>>>>>>> with attaching the bellows itself to the lens. The
>>>>>>> attaching ring normally attaches to a ring on the back of
>>>>>>> the lens board that is about 51mm diameter... or the
>>>>>>> outside diameter of a lens having a 49mm filter. When you
>>>>>>> reverse a lens having a 49mm filter the bellows attaching
>>>>>>> ring fits over the lens in the same way as it does the ring
>>>>>>> on the back of the lens board. But when you use a lens
>>>>>>> with 55mm filter the lens is too large. It needs a
>>>>>>> step-down ring. Now, since I have never seen one of these
>>>>>>> step-down rings I can only conclude that it has a 55mm
>>>>>>> thread on one end and a 51mm unthreaded ring on the other
>>>>>>> such that it presents the same diameter to the bellows
>>>>>>> attaching ring as the ring on the back side of the lens
>>>>>>> board.
>>>>>>>
>>>>>>> Or something like that. If you know something else correct
>>>>>>> me.
>>>>>>>
>>>>>>> Chuck Norcutt
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On 5/17/2013 6:23 PM, Piers Hemy wrote:
>>>>>>>> Without looking at the Bellows manual I would opine that
>>>>>>>> it would be surprising to find that Olympus did not use
>>>>>>>> the 49/55mm thread there, as it is intended for reversing
>>>>>>>> OM lenses on the (reversed) front standard. Why would
>>>>>>>> they use a thread incompatible with all and any of their
>>>>>>>> own lenses? And in place of reading a secondary source
>>>>>>>> (useful as the eSIF is), why not try it?
>>>>>>>>
>>>>>>>> So I did look at the 12/81 edition of the Auto Bellows
>>>>>>>> manual, and guess what?
>>>>>>>>
>>>>>>>> I was wrong.
>>>>>>>>
>>>>>>>> And so is the eSIF, only more wronger (!)
>>>>>>>>
>>>>>>>> It's a 49mm thread, as "The adapter ring 55-49mm is
>>>>>>>> needed to reverse the Macro 55mm F1.2 on the bellows" (p
>>>>>>>> 14). Granted, they described the 55/1.2 as a Macro lens,
>>>>>>>> which it isn't, but it does have a 55mm filter thread,
>>>>>>>> from which I conclude the bellows has only a 49mm
>>>>>>>> thread.
>>>>>>>>
>>>>>>>> Piers
>>>>>>>>
>>>>>>>> -----Original Message----- From: Chuck Norcutt
>>>>>>>> [mailto:chucknorcutt@xxxxxxxxxxxxxxxx] Sent: 17 May 2013
>>>>>>>> 22:26 To: Olympus Camera Discussion Subject: Re: [OM] Oly
>>>>>>>> 4/3 vs m4/3 lens mounts and adapters
>>>>>>>>
>>>>>>>> I tried the focusing stage since Wayne said he'd gotten
>>>>>>>> such an arrangement to work with his Pen and, if it
>>>>>>>> worked, would require nothing more than what I already
>>>>>>>> have.
>>>>>>>>
>>>>>>>> I didn't come up with your solution since I've never
>>>>>>>> completely read the bellows description in the eSIF which
>>>>>>>> is, I think, the only place that tells you that the back
>>>>>>>> of the lens board is threaded. But it looks like you
>>>>>>>> need to re-read it yourself :-) since the thread is for a
>>>>>>>> Series VI filter and is not a 49/55 filter thread.
>>>>>>>> Nevertheless, your solution should work given the right
>>>>>>>> bits and pieces.
>>>>>>>>
>>>>>>>> But re-reading the eSIF to understand what you had
>>>>>>>> written caused me to think about reversing the lens which
>>>>>>>> might provide a bit more room to maneuver since it moves
>>>>>>>> the thick base of the lens board to the back side. Maybe.
>>>>>>>> Thanks for the memory jog.
>>>>>>>>
>>>>>>>> Chuck Norcutt
>>>>>>>>
>>>>>>>>
>>>>>>>> On 5/17/2013 5:35 AM, Piers Hemy wrote:
>>>>>>>>> I may have missed something obvious, but why are you
>>>>>>>>> using the focusing stage? Remove the rear standard
>>>>>>>>> (camera mounting board) and bellows from the bellows
>>>>>>>>> rail, and use the 49/55mm filter threads on the back of
>>>>>>>>> the front standard (lens board) to mount the OM-D.
>>>>>>>>> You'll need a 55mm m4/3 reverse adaptor such as
>>>>>>>>> 271191801433 on the auction site, and a female-female
>>>>>>>>> filter adaptor such as this:
>>>>>>>>> http://www.camera-filters.com/index.php?main_page=product_info&cPath=4
>>>>>>>>>
>>>>>>>>>
> 31&pro
>>>>>>>>> ducts_id=7214
>>>>>>>>>
>>>>>>>>> You may also need a blank filter ring to get extra
>>>>>>>>> separation, but I'm sure you'll work that out!
>>>>>>>>>
>>>>>>>>> Piers
>>>>>>>>>
>>>>>>>>> -----Original Message----- From: Chuck Norcutt
>>>>>>>>> [mailto:chucknorcutt@xxxxxxxxxxxxxxxx] Sent: 16 May
>>>>>>>>> 2013 18:04 To: Olympus Camera Discussion Subject: Re:
>>>>>>>>> [OM] Oly 4/3 vs m4/3 lens mounts and adapters
>>>>>>>>>
>>>>>>>>> I'm removing the grain of salt. I mounted the E-M5 on
>>>>>>>>> the focusing stage, installed the OM adapter and some
>>>>>>>>> OM extension tubes and then put the OM body mount from
>>>>>>>>> the bellows onto the end of the tubes. Running the body
>>>>>>>>> mount into the bellows connector resulted in the E-M5
>>>>>>>>> setting in a non-level position on the focusing stage.
>>>>>>>>> I think my guess of 3mm (maybe 2mm) vertical
>>>>>>>>> misalignment may be about right but it's not the height
>>>>>>>>> of the body or lens center lines.
>>>>>>>>>
>>>>>>>>> I had assumed that the OM body was lower and would
>>>>>>>>> align properly. Nope, the two camera's lens centers
>>>>>>>>> appear to be at the same height so an OM-1 on the
>>>>>>>>> focusing stage doesn't align either. The problem of
>>>>>>>>> vertical misalignment is caused by the height of the
>>>>>>>>> focusing stage.
>>>>>>>>>
>>>>>>>>> Chuck Norcutt
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On 5/15/2013 11:15 AM, Chuck Norcutt wrote:
>>>>>>>>>> A quick and very rough measurement looks like the
>>>>>>>>>> vertical centerline of the E-M5 is about 3mm higher
>>>>>>>>>> than an OM body. But take that with a grain of salt.
>>>>>>>>>> Also, like the E-P1 the tripod thread is off center
>>>>>>>>>> from the lens center by about 9mm. That, however,
>>>>>>>>>> could likely be solved by drilling and tapping a new
>>>>>>>>>> hole in the focusing stage. I'll take a better
>>>>>>>>>> measurement later since this has some promise.
>>>>>>>>>>
>>>>>>>>>> Chuck Norcutt
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On 5/15/2013 8:17 AM, Wayne Harridge wrote:
>>>>>>>>>>> G'day Chuck,
>>>>>>>>>>>
>>>>>>>>>>> Something like this should work:
>>>>>>>>>>>
>>>>>>>>>>> http://www.structuregraphs.com/RandomStuff/15-May-20
>>>
>>>>>>>>>>>
> --
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>>
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