Weston Master II

[Chan Tran]

I have a Weston Master II exposure meter. I got it at a garage sale many years ago and never used it. Recently, out of curiousity I checked it to see how accurate it is. I found that the direct reading in Candela per foot squared is quite accurate but the dial would indicate wrong exposure.
For example, 400 c/ft^2 which is EV15 for ISO100 but dial this value in the built in dial I would get 1/130@f/20 which is EV15 and 2/3. Using Weston rated speed of 80 for ISO100 I would get 1/130@f/18 which is EV15 and 1/3.
It seems to get the correct exposure setting I would have to set the dial for ISO64 instead.

[Denis P.]

Older Weston light meters used different speed ratings. The general formula states that Weston 80 equals 100 ASA/ISO. So, you're right that you should set the film speed dial to 80 (or even 64, as you say).
Check also here: Weston meter

[Galah]

Older Weston light meters used different speed ratings. The general formula states that Weston 80 equals 100 ASA/ISO. So, you're right that you should set the film speed dial to 80 (or even 64, as you say).
Check also here: Weston meter

Amazing how these old Weston Masters continue to work so well !

[benjiboy]

I think the Weston 11 master meter came out in 1948, after around sixty years it's a miracle they work at all never mind accurately ,

[Steve Smith]

I think the Weston 11 master meter came out in 1948, after around sixty years it's a miracle they work at all never mind accurately ,

The miracle could be that they have had the cell replaced. A service which Megatron in the UK still offer.


Steve.

[benjiboy]

The miracle could be that they have had the cell replaced. A service which Megatron in the UK still offer.


Steve.

They may still do it Steve but there's no mention of it on their website now http://www.megatron.co.uk/homepage.html

[edp]

They did my Master V in October 2008, and I don't think their website mentioned it then either.

[ic-racer]

I'd do a Zone I test on an old meter anyway, and use the results of that test for my exposures.

[Galah]

I think the Weston 11 master meter came out in 1948, after around sixty years it's a miracle they work at all never mind accurately ,

I have a W-M II and a V (neither has been "serviced"): both work well.

I have several other "built in" selenium meters in various cameras: all work OK.

[Chan Tran]

I bought mine at garage sale so I can't be sure but I believe it has not been recelled.