[Leica] IMG: A Morning with the Old Ross Lens

[Peter Dzwig]

Ingenious - it clearly works!

Peter

On 02/09/2016 21:34, Jim Nichols wrote:
> Hi Peter,
> 
> I sent that info to Aram earlier today.  I am going to attempt to paste it here.
> 
> My lens was designed to mount on a wooden lens board of the type used by
> the old 5x7 and 8x10 view cameras.  The lens threads into a flanged
> attachment mount that, in turn, fastens to a lens board with 3 screws.
> So, I guess the answer is "yes", I had to fabricate a mount.
> 
> Here is the lens screwed into the flanged mount, with one screw hole
> showing.
> 
> http://www.gallery.leica-users.org/v/OldNick/Ross+Lens+2.jpg.html
> 
> I needed extra extension distance, so I fastened the flange to a thick
> wooden "lens board".  On the back of the lens board, I glued a flange
> removed from the rear of an old M42 lens that was no longer
> serviceable.  I also used one tiny nail, in case the glue failed.  Here
> it is seen screwed onto a Pentax M42 bellows, attached with an M42 to
> Oly 4/3 adapter to my E-1.
> 
> http://www.gallery.leica-users.org/v/OldNick/Final+Assembly.jpg.html
> 
> Jim Nichols
> Tullahoma, TN USA
> 
> On 9/2/2016 3:25 PM, Peter Dzwig wrote:
>> They are indeed very good. The quality of the images is astonishing considering
>> the age of the glass. How did you mount it on the XE-1?
>>
>> I guess this is equivalent to about a 260mm lens (8" x 25.4mm) x 1.3 crop factor?
>>
>> Peter
>>
>>
>> On 01/09/2016 18:14, Jim Nichols wrote:
>>> I mounted the Ross London No. 6 Symmetrical Lens, circa 1890, on the Fuji X-E1
>>> and a tripod, and went for a walk in the back yard. I came upon a very
>>> cooperative (for a while) Gulf Fritillary that allowed me to grab a few shots.
>>>
>>> Resting on a branch:
>>>
>>> http://www.gallery.leica-users.org/v/OldNick/Gulf+Fritillary+on+Branch.tif.html
>>>
>>> On a small bush:
>>> http://www.gallery.leica-users.org/v/OldNick/Gulf+Fritillary+on+Bush.tif.html
>>>
>>> Then I moved on to the Sedum plants and found a lot of small insects.  A
>>> Pennsylvania Leatherwing, or Soldier Beetle, was sharing space with the first
>>> Gray Hairstreak butterfly that I have ever seen:
>>> http://www.gallery.leica-users.org/v/OldNick/Sedum+with+Soldier+Beetle+and+Gray+Hairstreak.tif.html
>>>
>>>
>>>
>>> To appreciate what this old lens can do, please view the last two images LARGE.
>>>
>>> Comments and critiques welcomed and appreciated.
>>>
> 
> 
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> 

-- 

===========================================================
Dr Peter Dzwig