Another CPH Session with Erik

[Bjørn Rørslett]

The replacement mount is found acceptable. Now, Erik deftly centres the original mount onto the new one so the mounting holes will align perfect when new holes are drilled.

Also evident is the sturdy inner metal frame of the 1V1. Not flimsy like the NEX-3 we did yesterday.

[Bjørn Rørslett]

We realised the new mount could be seated 1 mm deeper into the camera body if the rear flange is machined away - it is not required anyway for this project. Erik gives it a go on his work station.

(for new readers: this report is *near* real time -  we honestly don't know how the conversion will pan out in the end. A collateral entertainment as it were)

[Bjørn Rørslett]

The new mounting holes are drilled and properly sunk. However, the old mount screws are too short. Erik browses through our camera screw supply in order to locate better ones.

[Jakov Minić]

As long as you guys are having fun

[Bjørn Rørslett]

You know how this works, Jakov Fun is 100% guaranteed for us nerds.

Meanwhile, proper screws are found and the new 52mm thread mount is in place. Very discreet in black too.

[Bjørn Rørslett]

A host of new possibilities opens up with this mount. For example, I can now use my various Ultra-Micro-Nikkors on the modified 1V1 !!


A quick shot with the Ultra-Micro-Nikkor 28 mm f/1.8 @ f/1.8 to prove the point.

[Øivind Tøien]

Great fun seeing this develop! Based on my background from the AW1, don't you need a cpu that at least mimics the FT-1? AW1 is not happy if nothing is attached (locks up with lens not attached message), but with FT-1 it does not care, and it will meter and do everything except aperture and focus control of course.

[Bruno Schroder]

Is a standard step ring  or a Cokin adapter study enough as new mount? Or did you use something stronger?

[Thomas Stellwag]

I like your wokshop pictures at lot
what did you do to your DF? 
Now we are at least 3 persons with F mount Olympia Sonnar
in the forum

[Bjørn Rørslett]

Thomas: my Df crashed ...
Bruno: depends on the step ring quality. Avoid the flimsiest models and you should be just fine.
Øivind: both V and AW1 will work in 'M' mode without locking up, but for V1, no zoom of the finder view is possible. We're looking into the possibility of butchering a superfluous 10 mm to get contacts etc., but need to trace the signal wiring.

[Lars Hansen]

I find myself again in wind-beaten Copenhagen, with my friend Erik. We have just returned from the mandatory down-town trip to visit the usual photo stores.

Just curious what shops you are visiting in Copenhagen to find such cheap gems?
This summer I visited "One Of Many Cameras" on Gråbrødre Torv for the first time - didn't know of their existence until then. That's a great shop for nerds run by nerds - they have quite a lot of classic film gear as well as digital. I ended up buying  a used Fuji XF 60 macro at a reasonable price.
 

[Bjørn Rørslett]

This was Photografica on Skindergade. The 'One of many cameras' shop is usually on the itinerary but due to bad weather, we abbreviated the downtown stroll that day. I did purchase my second Df (still alive) there some months ago, though.

Meanwhile I'm writing this, Erik has CPU-modified his latest acquisition, a truly pristine Nikkor ED 180 mm f/2.8 and has commenced destroying my Tamron 21 mm f/4.5. The latter has a very unusual mount and in order to get it properly operating on my dedicated UV camera (D3200 with built-in Baader filter), we decided aperture automation had to go.

[Bjørn Rørslett]

Let me walk you through the modification of Erik's 180.

First, trim the lens bayonet so its thickness is within the required range (0.8 to 0.9 mm). Most old mounts are more or less there already whilst the newer AIS ones need to be trimmed. Holes for the fixing screws for the contact block have already been drilled using a jig template.

[Bjørn Rørslett]

Then, cut out the "footprint" of the CPU block from the stray light baffle.

[Bjørn Rørslett]

Assemble the CPU and contact block and put it into place, securing with dedicated screws.