P3D Which advance mechanism in your Realist?

[Paul Talbot <ptww@xxxxxxxxx>]

There were some recent requests for more info on this question,
and I didn't have a chance at the time to dig it up.  I just found
the following in the archives (Digest 2215):

>>As it turns
>>out (this is explained in Piper's book too), the older Realists (up to
>>around 25K serial number) are using a different film advance mechanism
>>which tends to wear out and generally is not as reliable as the newer
>>ones.

> Piper discusses this in installment 62 and explains how you can tell
> the difference:

> "The two vintages of Realist transport have different methods to keep
> the WIND knob from turning backward when on Advance.  The old style
> has a one way spring clutch, and offers little resistance to turning,
> but makes no sound.  The new style has a ratchet stop which clicks.
> The old style requires overhaul much more frequently."

Later in the same digest:

>>The only problem with it is that it doesn't like
>>36 exposure rolls. It will overlap the last several exposures. I
>>wonder if this is due to not having the guard over the film
>>advance sprocket. That was a modification on later models.

> Larry's Realist problem sounds slightly different, but is also
> addressed by Piper in Installment #62.  He writes:
> 
> "When your Realist is unloaded and set to Rewind, it should be
> possible to rotate the Wind or Rewind knob in either direction
> with the tip of one finger.  If either is tight, you may be
> headed for trouble, especially with the 36 exp rolls."

I forget exactly what started this thread, but the discussion in
digest 2215 suggested there are two possible common advance problems,
one characterized by overlap throughout the roll, the other by
overlap toward the end of 36 exposre rolls of "less slippery" film.

The above was, and remains, somewhat speculative, as I am not by
any means an expert in the mechanics, troubles, or repair of
Realist cameras.  Nevertheless, I hope it helps someone.

Paul Talbot


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