[rollei_list] Re: Rollei 35S and the Sonnar 2.8/40
- From: Thor Legvold <tlegvold@xxxxxx>
- To: rollei_list@xxxxxxxxxxxxx
- Date: Wed, 20 Nov 2013 22:37:20 +0100
For the uninitiated (i.e. I only have a TLR and MF SLR Rollei system), what are
the differences between the 35, 35S and 35SE?
Which is the “one to have" as a user?
Thor
On 20. nov. 2013, at 21:58, Hauke Fath <hauke@xxxxxxxxxxxxxxxxxxxxxxxx> wrote:
> At 20:47 Uhr +0100 20.11.2013, Volker Muth wrote:
>> You probably already know but you can convert the battery compartment of a
>> Rollei 35 to 6V PX27A batteries.
>
> That's the SE model (as you say yourself), which has electronics and so
> does not depend on exact battery voltage the way the older 35/35T/35S
> models do. You only have to find a replacement with identical form factor.
>
> But mercury batteries are unique in that they maintain a constant voltage
> over most of their lifetime - much more so than alkaline or other
> alternatives. Therefore, many cameras and light meters equipped with CdS
> cells from the 60s and 70s are based on (1) the 1.35 V value of hg cells,
> and (2) constant voltage.
>
> ISTR there is an AgO cell with the form factor of the PX625, which requires
> the 35's light meter to be adjusted for 1.5 V (or a Schottky diode to be
> added in-line), but otherwise has similar properties. The only
> modification-free alternative are Wein Zn-Air cells, but they only live a
> few weeks, and the 35 battery compartment is inside the film chamber...
>
> hauke
>
>
> --
> "It's never straight up and down" (DEVO)
>
>
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