Olympus-OM
[Top] [All Lists]

Re: [OM] flash color temperature of illuminator light bulbs ?

Subject: Re: [OM] flash color temperature of illuminator light bulbs ?
From: rudy@xxxxxxxxxxxxxxxxxxx (Ruediger Betzold)
Date: Fri, 12 Jan 2001 03:03:10 +0100 (MET)
> >After searching for quite some time and finally purchuasing one of
> >this nice T28 macro setups for a nice price I'm wondering about:
> >Does any one know what color temperature the extra illuminator light bulbs
> >in the T28, T8, T10 macro flashes have ?
> >The flash bulb color temperatur is 5800 (according to the manuals).
> >But the helping illuminator bulbs ? I have not found any source for this 
> >info.
> >Any one done a measurement with a color-meter ?
> 
> Why would the color temperature of the illuminator bulbs matter?  My 
> understanding is that they are there so that you can make a visual 
> prediction of the final flash effect. They are not supposed to be on 
> for the picture, are they?

That's the question, I would say, they are on in the first place
to help in the process of focusing in difficult light conditions
(focusing in macro is 
critical - as you know, small DOF...) and I would use them in this way.
The on/off switch on the macro heads of the T28 is so relativety small
and you will fiddle around with them, maybe takeing a risc 
to unfocus all of the arangement. If you use the body/lens/shoering/T28
setup on focusing stage/rail on a tripod. 
If you would use the setup on freehand I think it will make even then
sense to let the illuminator light on. Do you ever have handheld such a setup ?
This is some weight and I will not want to have to make the light off after
focusing. I think it will be hard to look through the viewfinder and then
put your hand blindle to the on/off switch.

Rudy


< This message was delivered via the Olympus Mailing List >
< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >


<Prev in Thread] Current Thread [Next in Thread>
Sponsored by Tako
Impressum | Datenschutz