OM-1s from (approx) serial number 1,100,000 - 1,640,000 were made minus
the prism foam. Nice idea. The 1N picks up around 1,640,000 and,
bingo, they put the prism foam back in. DOH !
All 1N have all the improvements ever put into the plain 1. Same can be
said when comparing 2 to 2N. Most parts are easily had, OM-1 meters are
a different story and usually must come from junk bodies. OM-2 / 2N
meters are more plentiful but are not adaptable to the 1 / 1N. OM-10,
20, G, are all good source for prisms, and Chuck hit it on the head when
he says they can be picked up cheaply.
___________________________________
John Hermanson
Camtech Photo Services, Inc.
21 South Lane, Huntington NY 11743
631-424-2121 | Olympus OM Service since 1977
http://www.zuiko.com | omtech1 AT verizon.net
Chuck Norcutt wrote:
> 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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>
>
>
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