The difference I've found in all the conversions I've done is even less.
Series 2 screen is 2/3rds of a stop brighter. I use one body on a
calibrated light source. What does meter read with old screen? How
different is reading with 2 series screen?
___________________________________
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 dot net
Michael Wong wrote:
> Dear all,
> I bought one more 2-4 focusing screen & I put the screen into my 1n &
> I know there will be affected its metering incorrect. So I have made a
> test to find the difference.
>
> First, I record the metering reading by my 4T + 85/2, the reading is
> ISO100, F2, 1/4. And then I record reading by 1n + 1-10 focusing
> screen & OM-PC as same as 4T. I change the 2-4 focusing screen into my
> 1n & find the metering is over exposure with ISO100, F2, 1/4. And then
> I change the ISO to 50 & find the metering shown "correct". I wonder
> there is 1 stop difference between 2 series & 1 series focusing
> screen. So I make the 2nd test as reading ISO400, F2, 1/15 by 4T &
> OM-PC. Same as 1st test, I adjust the ISO to 200 & metering "correct"
> for my 1n ................
>
> I wonder 2 series just 1 stop brighter than 1 series screen? It looks
> very bright through VF ..................
>
>
> Or my test method is wrong???????
>
>
>
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