Re: [Rollei] Rolleinar and 2.8GX Edition

[Dirk-Roger Schmitt <Dirk-Roger.Schmitt]

At 17:18 30.05.00 -0400, you wrote:

>As soon as my 500mm lens arrives, I will check for filters and if they are
>present I will check the hypothesis. In this age of coatings and such, I
>wonder what made the Rollei engineers make a lens that requires a filter.
>Could the design be an inheritance from the Zeiss inventory like much of
>the 35mm stuff?


The 500 mm lens is made in Japan - by Tokina ? -

Dirk



>-_______________
>Andrei D. Calciu
>NEC America, Inc.
>
>
>
>
> 
>
>                     Dirk-Roger 
> Schmitt
>                     <Dirk-Roger.Schmitt       To: 
> rollei  us
>                     de>                             cc: 
 >
>                     Sent by:                        Subject:     Re: 
> [Rollei] Rolleinar and 2.8GX
>                     owner-rollei  o-        Edition 
 >
>                     alto.ca.us 
 >
> 
>
> 
>
>                     05/30/00 04:54 
> PM
>                     Please respond to 
> rollei
> 
>
> 
>
>
>
>
>Hello,
>
>yes the focussing is adjusted only correctly if the filter is mounted in
>the rear side.
>If the filter ist not mounted, infinity would not conincide with the
>infinity mark on the barrel ring. (My own experience)
>
>That is what I know definitely. So Rollei recommends use of the filter at
>any time. I don't know if the no use of filter would degrade the
>performance in any way.
>
>This is true for the 500 mm lens I have. I don't know either if there have
>been different versions with different properties.
>
>
>To the GX edition: That was what I read in an ad. I have no more info.
>
>
>Greetings
>
>Dirk
>
>
>At 12:02 30.05.00 -0400, you wrote:
>
> >I had no idea about the 500mm Rolleinar and the rear mounted filters. Why
> >would that affect focussing? I know filters slightly affect the focal
> >length of any lens by a tiny amount (i think it was 1/4 of the total
> >thickness of the filter's glass element). Please tell me more about this
> >focus issue.
> >
> >About the 2.8GX Edition, what is different other than the plaque and the
> >shutter?
> >
> >-_______________
> >Andrei D. Calciu
> >NEC America, Inc.
> >
> >
> >
> >
> >At 10:46 30.05.00 -0400, you wrote:
> >
> >Great! Concerning the 500 you must take care to get also the filter set.
>It
> >
> >contains grey filters and a skylight filter. I don't like skylight
>filters,
> >
> >but in this case you must screw it into the rear barrel. Otherwise the
> >focus will not be optimal.
> >
> >
> >Nobody wants to buy the new 2,8 GX edition??
>
>
>

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