hey...where's the shutter speed ?

[raytoei@gmail.com]

i came across this on the rojlleiflex...

the left most and right most numbers are ISO/DIN numbers.

the five columns between the din/iso looks like aperture setting, although the numbers are rated 8 to 15 with non-standard f-stop numbers.

the bottom 2 rows are EV compensation depending on the intensity of the sunlight.

the top 2 pictorial rows are situations.

so where's the shutter speed ?

raytoei

 

[Roger Hicks]

Aren't they coupled shutters, so that one EV number (the 8-15) is the equivalent of a set of shutter speeds/apertures? Or am I misremembering or misreading?

Cheers,

R.

 

[chrishayton]

The numbers are EV numbers not apertures

 

[raytoei@gmail.com]

arrr...thanks Roger, chrishayton, they are EV numbers, i get it now.

 

[Moriturii]

Brilliant little thing, so easy and so precise.

 

[Richard G]

I've seen a different Rolleiflex exposure guide which incorporated the time of year. This one is very sophisticated.

 

[rogerzilla]

EV numbers melt your brain though, and are prone to "fencepost error" if you think 1 second at f/1 is EV1 (it's actually EV0).

 

[nikon_sam]

I like the EV Number system...I have it on my Olympus 35-S & 35SP...

 

[Moriturii]

I have EV system on my Gossen Digisix, wonderful stuff.

 

[Sarcophilus Harrisii]

I've seen a different Rolleiflex exposure guide which incorporated the time of year. This one is very sophisticated.

I have a 2.8C and they have a seasonal one. It changed from earlier models to later ones. My 2.8D has the same as your picture. Of course, between the Cords and the Flexes, there were quite a few different models, so I have no idea how many different iterations of the guide plates there were, in total, and I cannot guarantee the backs of either of my 2.8s are the original factory items.
Regards,
Brett