Bessa-R film speed selection

[daveozzz]

Hi there - I've just received my shiny new bessa-r at the weekend
One thing that I'm not completely sure about and is almost certainly a stupid question but...

I find the film speed selection dial a little confusing... I have some 800 film - 800 is not actually marked on the dial - but looking at the other settings it seems like the film speed doubles every 3 notches - is that right..? So the setting for 800 would be 3 notches past 400 (one notch before 1000)??

Am I right?

 

[Roman]

Yep, that's right - the scale is in 1/3 f-stop progression:

25-32-40-50-64-80-100-125-160-200-250-400-500-640-800-1000-1250-1600-2000-2500-3200

Roman

 

[daveozzz]

aha - cheers for that. I reaslised there must have been some scale going on that I didn't know about. Excellent - thanks.

 

[Cloudy]

Hi there - I've just received my shiny new bessa-r at the weekend
One thing that I'm not completely sure about and is almost certainly a stupid question but...

I find the film speed selection dial a little confusing... I have some 800 film - 800 is not actually marked on the dial - but looking at the other settings it seems like the film speed doubles every 3 notches - is that right..? So the setting for 800 would be 3 notches past 400 (one notch before 1000)??

Am I right?

Strange ...... there is a "800" mark on my R2 ...... 🙄

 

[Roman]

Oooops... 😉

 

[daveozzz]

Cloudy - it goes straight from 400 to 1000 on the bessa-r.. well it does on mine anyhow!

 

[jlw]

Correct. The standard sequence of film speeds in 1/3-stop intervals is:

25, 32, 40, 50, 64, 80, 125, 160, 200, 250, 320, 400, 500, 640, 800, 1000, 1250, 1600.

So, one click past 400 is 500, two clicks past is 640, and three clicks past is 800.

 

[Cloudy]

Cloudy - it goes straight from 400 to 1000 on the bessa-r.. well it does on mine anyhow!

So it ends with ISO1600 or ISO1000? 🙂

 

[daveozzz]

all the way to 3200 big ones!