> > From: Paul Sorenson <[EMAIL PROTECTED]> > Date: 2006/08/04 Fri AM 01:24:54 GMT > To: Pentax-Discuss Mail List <[email protected]> > Subject: Re: A few questions on a Zeiss Ikon, an old film and a studio > lighting > peace > > 1) The "F" and "M" are to match the shutter timing to the peak output > of flashbulbs. "F" bulbs peak 5 milliseconds after ignition, while "M" > bulbs peak at 20 milliseconds. Each is of a relatively short duration, > but not as short as electronic flash. "FP" (focal plane)bulbs are a > horse of another color as they peak after about 5ms, but have a long > duration so a focal plane shutter can be used at higher speeds.
I don't think it can be "peak", as that point will vary from bulb to bulb. It's start - the bulbs need more time to get lit and start outputting light, so they have more lead time. Electronic flash fires much quicker and can be started once the shutter is open. > > 3) This looks like it takes a standard 9V battery. I don't know of any > other batteries that match the terminal configuration of the 9V. > > > > -P > > Lasse Karlsson wrote: > > > > > > 1) Regarding the Zeiss Ikon Nettar "front piece": You can see this red > > little thingy set at "F". > > Now what does this red thing do there? What does "F" and "M" mean? > > > > > 3) You'll see another thingy, which is a (infrared?) sender which will > > trigger some Godard studio lights that I will start learning how to use. It > > obviously needs a battery. Does anybody know of what voltage this battery > > would be? (Or is this evident? There are batteries of different voltages > > that will physically fit, right?) > > > > Many thanks in advance for any answers or good clues. > > > > Lasse > > > > > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > ----------------------------------------- Email sent from www.ntlworld.com Virus-checked using McAfee(R) Software Visit www.ntlworld.com/security for more information -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
