John, What Bob said.
The other odd thing you might notice is that the aperture set on the lens does not agree with the aperture displayed in the viewfinder. Don't worry. The one set on the lens will prevail, and your exposures will be fine. Rick http://photo.net/photos/RickW --- On Sun, 5/30/10, Bob Sullivan <[email protected]> wrote: > From: Bob Sullivan <[email protected]> > Subject: Re: DOF Preview on PZ-1p with an 'A' lens?? > To: "Pentax-Discuss Mail List" <[email protected]> > Date: Sunday, May 30, 2010, 11:50 AM > John, > > Depth of field with the lens set on A will go to f22 (or > whatever is the max). > I don't remember it ever going to f4, even though the > camera was set > that way electronically. > That DOF preview is purely mechanical. > You have to twist the aperture mechanically to f4 to see f4 > with DOF preview. > > Think legacy operation based on where the DOF preview lever > is. > With the digitals, DOF preview is hooked into the > electronics and > located by the shutter release. > (MZ-S too) > > Regards, Bob S. > > On Sun, May 30, 2010 at 10:30 AM, John Sessoms <[email protected]> > wrote: > > I'm shooting a school assignment with the PZ-1p, a > SMCPA 24mm f/2.8 lens. > > > > http://www.bdimitrov.de/kmp/lenses/primes/ultra-wide/A24f2.8.html > > > > I have to take three photos "up close & personal" > of 36 persons who I don't > > know (not friends, not family, not fellow students ... > strangers). > > > > The assignment specifies FILM and off camera flash > using a Vivitar 285HV set > > to "yellow" (shoe mounted radio trigger & radio > slave hotshoe). The > > instructor states the Vivitar 285HV automatic exposure > on "yellow" will > > provide proper illumination for f/4. > > > > The lens is at 'A', with the camera in hyper-manual > mode with the aperture > > set at f/4. Ambient light metered with a Sekonic L-408 > & the shutter speed > > set 1 stop faster than metered, i.e. meter reads f/4 @ > 1/30 sec, the shutter > > is set to 1/60 sec. > > > > On the third roll of film (after 22nd subject), I used > the DOF preview > > button on the PZ-1p to see how much DOF I was getting. > To my surprise, when > > I pressed the DOF preview the lens stops all the way > down to f/22. > > > > Do you think the camera has been stopping down to f/22 > during taking, or is > > this an anomaly affecting only the DOF preview. The > earliest I can get the > > film processed is Monday. > > > > Is that a problem with the lens, with the camera, or > with the combination of > > lens and camera? > > > > And whoever was offering the PZ-1p a couple days ago, > please email me off > > list. Looks like I may be in the market. I might could > use my LX or K-1000, > > but I need the 1/250 sync speed. > > > > In the meantime I've set the lens manually to f/4 and > setting the shutter > > speed using hyper-manual. I will shoot additional > subjects to back stop > > myself in case the first rolls turn out unusable. > > > > -- > > PDML Pentax-Discuss Mail List > > [email protected] > > http://pdml.net/mailman/listinfo/pdml_pdml.net > > to UNSUBSCRIBE from the PDML, please visit the link > directly above and > > follow the directions. > > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link > directly above and follow the directions. > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
