"David A. Mann" wrote:
> Joseph McAllister writes:
>
> > The PF functions on the ((P)Z-1 allowed this to be set on or off, if I recall
> > correctly. With the (P)Z-1p, you lost 3 PF settings, and now you must use the
> > "Cable Switch F" to release the shutter when the green focus light comes on with
> > K and Ka lenses are used and the focus mode switch is set to "single." Page 35
> > of the manual. Called "Snap-in Focus Function."
>
> From my experience with using the camera, what the manual says is not
> 100% accurate. The trap-focus [snap-in focus] will work without the cable
> switch attached, provided you hold the shutter release down.
Yeah, but with the cable release you can lock it and walk away to shoo your subject
into the frame or walk into the photo
yourself. I've never tried it with the shutter button, so I don't know.
>
> Which PF settings were lost?
One was the metering pattern, which was transferred to the button on the back because
it was so popular.
Others were changed, or transferred to the Mode dial.
A comparison chart: (fixed width font needed here, and no wrap limits)
(P)Z-1 (P)Z-1p
PF-1 Spot or Center Weighted metering In Focus Beep On/Off
0 = Spot Metering 0 = PCV Beeps
1 = Center Weighted Metering 1 = PCV silent
PF-2 Selecting a Program Line Selecting Exposure Modes if 'A'
0 = Normal Program Line 0 = HypP-AE and HypManual if 'A'
1 = Program Action Line AP-AE and HypManual if not 'A'
2 = Program Depth Line 1 = All exposure modes available
3 = MTF Program Line
PF-3 Selecting Exposure Compensation Increment (both)
0 = 0.3 EV Exp. Compensation 0 = 0.3EV Exp. Compensation
1 = 0.5 EV Exp. Compensation 1 = 0.5EV Exp. Compensation
PF-4 Selecting the Shutter Speed Increment (both)
0 = 1 EV Shutter Steps 0 = 1 EV Shutter Steps
1 = 0.5 EV Shutter Steps 1 = 0.5 EV Shutter Steps
PF-5 Selecting Type of Av/Tv shift in Hyper Programmed AE Mode (both)
0 = Tv and Av will shift auto 0 = Tv and Av will shift auto
1 = Warning only - No Shift 1 = Warning only - No Shift
PF-6 IF Button type of Tv/Av shift when in Hyper Manual Mode (both)
0 = Prog Line Exposure 0 = Prog Line Exposure
1 = Aperture Priority 1 = Aperture Priority
2 = Shutter Priority 2 = Shutter Priority
3 = IF button disregarded 3 = IF Button Disregarded
PF-7 Selecting Tv/Av value used with Selecting Shift of Tv & Av in
IF Button in Hyper Manual HypMan or 1/250 with RTF use
0 = Adjusted in steps 0 = Expose for background
1 = Adjusted continuously 1 = Expose for RTF Program Line
PF-8 Selecting the method of Film Speed setting (Both)
0 = DX Code ISO has priority 0 = DX Code ISO has priority
1 = Manual ISO has priority 1 = Manual ISO has priority
PF-9 RTF Discharge Mode with Function of [ML] Button when
out of range lens warning in Single Focus Mode
0 = Flash will fire 0 = Exposure locked, but not AF
1 = Will not fire 1 = Exposure and AF locked
PF-10 Selecting Shutter Release before RTF is Ready or Not (both)
0 = Fires when fully charged 0 = Fires when fully charged
1 = Fires when charge incomplete 1 = Fires when charge incomplete
PF-11 Adjusting the Film Rewind (Both)
0 = Leader into cartridge 0 = Leader into cartridge
1 = Leader left out 1 = Leader left out
PF-12 Selecting the Rewind Mode (Both)
0 = Automatic Rewind at Film End 0 = Automatic Rewind at Film End
1 = Manual Rewind Start 1 = Manual Rewind Start
PF-13 Selecting initial Magnification in Selecting Auto focusing with
Image Size Tracking Mode Power Zoom
0 = Previously Stored Size 0 = Lens maintains focus during Zoom
1 = Set for full length person 1 = Lens does not change focus
2 = Set for waist up size
PF-14 Selecting # of focal length Selecting Zoom Direction in
settings in Zoom Clip mode Zoom Effect Mode
0 = One Focal Length Setting 0 = Zooms from Wide to Tele
1 = Two Focal Length Settings 1 = Zooms from Tele to Wide
PF-15 Selecting Power Zoom Ring Operation During Exposure (Both)
0 = Power Zoom Ring Disabled 0 = Power Zoom Ring Disabled
1 = Power Zoom Ring Enabled 1 = Power Zoom Ring Enabled
the following are programmed on the (P)Z1 only, but may duplicate PFs on the (P)Z-1p
PF-16 Selecting Zoom Direction in Zoom Effect Mode
0 = Zooms from Wide to Tele
1 = Zooms from Tele to Wide
PF-17 Selecting Function of the [ML] Button in Single Focus Mode
0 = Exposure locked, but not AF
1 = Exposure and AF locked
PF-18 Selecting the Shutter Release Timing in Image Size Tracking Mode
0 = Fires when focused even if image size not constant
1 = Fires when image size consistent with settings even if not focused.
Another evening shot to hell... Enjoy this and save it forever!
Now keep reading, there's more!
> [...]
> >
> > With a Kaf or Kaf-2 lens, use Pentax Function 9 set to 1, and "Single" focus
> > mode chosen, then depress the ML button before you hold the shutter release in.
> > The shutter won't fire until the camera is finished AF and auto-exposure is set,
> > and both are locked. However, if anything in the frame of the AF can be brought
> > into focus, it will fire. This would only work with something TOO close to the
> > lens until you backed off, so might be handy as a technique with your Macro at
> > closest focus.
>
> Now that could work. I normally keep function 9 set to "0" but will try it out.
> I usually use the ML feature with the macro anyway, otherwise I can just
> switch to Hyper Manual when I want to meter off something else, and use
> ML for trap focus.
Another way to do your trap focus with the (P)Z-1 would be to use the Image Size
tracking Mode with focus mode switch in
Single, PF-18 to '0', and guess what? The camera will fire when the subject comes into
focus! Maybe time to pick up a used
(P)Z-1! A manual read tells me the (P)Z-1p will not do this.
>
>
> > It would be interesting to know if in "Servo" mode with a manual lens, and given
> > a rapidly approaching race car, the shutter would trip when focus is achieved,
> > or when the predictive program predicts focus would be achieved. "Cause I've had
> > plenty of "predictive" shots come out less than in focus using the shutter
> > release button in multi-image mode. Maybe 2 out of 10, subject depending.
>
> I recall reading somewhere that the trap-focus is predictive in "single" but
> now I can't find it in the manual. I must have had my wires crossed.
Actually, the manual says that fast moving objects "may not have focus" in "Snap
Focus" "Single Mode."
>
>
> Regarding "servo" mode, it's my turn to quote from the manual, page 29.
> "The shutter can be released whether or not your subject is in focus..." [I
> think this should have become a PF option. In-focus-only for your race cars,
> out-of-focus-OK for UFOs.]
>
> So trap focus won't work in servo-mode. In multi-image mode I've seen that
> the AF can't keep up most of the time. I tried it by shooting without film and
> holding the button down while moving the camera around. Watching in the
> viewfinder I saw that quite often it would shoot without refocussing.
>
> BTW, even though the manual mentions that in-focus indication won't work
> with a screwmount lens (and thus trap focus won't work either), you can
> probably fool it into working. I noticed that I had to scrape the paint off the
> mount of my extension tubes so the body-side electrical contacts would be
> shorted together, otherwise focus-indication wouldn't work. This makes the
> body think there's an old manual focus lens attached (otherwise the AF
> system "thinks" there is no lens). I would guess that a similar approach
> would work with a screwmount lens, but it may be difficult to implement.
>
> Cheers,
>
> - Dave
--
JoMac, Imagineering Head
Image * I * Nation, the creative division of RMG Services NW
\__/
"A fool and his money are soon parted." Now how do I get it back?
This message is from the Pentax-Discuss Mail List. To unsubscribe, visit
http://www.pdml.net and follow the directions.
Don't forget to visit the PUG at http://pug.komkon.org
