[pure-silver] Re: shutter speed
- From: Tim Daneliuk <tundra@xxxxxxxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Wed, 21 Oct 2015 16:12:58 -0500
On 10/21/2015 03:49 PM, `Richard Knoppow wrote:
See the article at: https://en.wikipedia.org/wiki/Exposure_value
The new series was introduced by Deckel for the EVS system about 1960.
Also see: http://www.kenrockwell.com/tech/ev.htm
I am not sure but think the system may have been introduced on a
Rolleiflex camera.
On 10/21/2015 1:32 PM, Eddy Willems wrote:
can someone tell when the old serie shutterspeeds 1 2 5 10 25 ...
changed in the new serie 1 2 4 8 15 ....
best regards
I have tested many mechanical shutters on a reasonably accurate shutter test
system over the years. I'd suggest the differences between these nominal
speeds is irrelevant, at least for mechanical systems. So I treat them
interchangeably. most usually mapping 1/5 -> 1/4. 1/10 -> 1/8 and so on.
--
----------------------------------------------------------------------------
Tim Daneliuk tundra@xxxxxxxxxxxxxx
PGP Key:
http://www.tundraware.com/PGP/
=============================================================================================================
To unsubscribe from this list, go to www.freelists.org and logon to your
account (the same e-mail address and password you set-up when you subscribed,)
and unsubscribe from there.
Other related posts:
