The OM-1n did incorporate a few engineering changes which I think were
to improve reliability but the OM-1 was very reliable to begin with.
Some of these changes may also have been incorporated in OM-1's as
production evolved. But, as Moose says, condition is much more
important than whether it's a 1 or 1n. There are also still plenty of
parts available for 1's, 1n's, 2's and 2n's so they will remain
repairable for a long time.
One thing to watch for on any of these cameras is prism foam. Most of
them (but not all) were manufactured with a piece of rubber foam between
the pentaprism and the flash shoe support. This foam deteriorates over
many years and may cause erosion of the paint and silvering on the
prism. The prism still has a very high percentage of internal
reflection without the silvering so losing the silvering isn't fatal but
does cause darker spots to appear in the viewfinder. If any camera you
buy on this list has been serviced in the past by our resident
servicemen (John Hermanson or Clint Rumbo) you can be assured that the
foam has been removed. If you get a body with a damaged prism they are
plentiful in undamaged form in lesser bodies. If memory serves I think
that OM-10 and OM-G prisms are the same and never had foam installed.
OM-10 and OM-G bodies can be had for junk prices these days.
Chuck Norcutt
Moose wrote:
> housqa wrote:
>
>>one question, what's the difference between the OM-1 and the OM-1n?
>>which one shall I buy?
>>
>>I have been told by a friend that the "n" means "new", so I want to buy a
>>OM-1n.
>>
>
> The 'n' may have meant new, but the youngest of these cameras is about
> 20 years old. The only functional difference between the 1 and the 1n is
> the change to accommodate the T series flashes that were developed to
> work with the then new OM-2. This consists of a different flash shoe and
> the addition of a little light in the viewfinder.
>
> The OM-2, 4 and OMPC series bodies do through the lens auto flash with
> the T series flashes, so there is little call to use the OM-1n with a T
> series flash.
>
> If you don't need the T series flash ready and confirmation light,
> condition is far more important than whether the body is a 1 or 1n.
>
> I prefer the original OM-1, so my nice clean OM-1n is for sale. E-mail
> off list if you want details.
>
> Moose
>
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