Pentax P3 User Manual

OEPTH-OF-FIELD PREVIEW
Your camera enables you to preview just what will and what will not
be sharp in your pictures. By depressing the preview lever near the
lens mount, you can close the lens down to whatever aperture you
have set. You can then preview how much sharpness you will get in
your picture by examining the picture area on the ground glass. After
previewing your picture, if you release the preview lever, the lens will
return to full aperture for focusing. You cannot, however, preview the
depthe of field with your camera set in the Programmed AE mode.
Nr>Tt;: ^ . -jres with tiiti |rHV.» ■ ■ : .‘ . I
, .‘X:- “fj (), - t ^ 11
Depth-of-field Table; SMC Pentax-A 50mm Lens
unit meter
Pt»fnc» MMlt _ f/1.4 _1/2__ t/4 t/5.6
0 4^
0 5m
0.6m
08m
1 Om
1 5m
2 0m
3 Om
10.0m
0^_
0497
0.5 03
0.596
0.606
0 791
0 810
0 985
1 016
OJIO
0.781
0.830
7.973
13431
38 772
7J7#
1 B J63
27 707
0440
' 0 460
0.487
- 0.513
0.581
- 0.821
0.764
- 0^40
0j»42
- 1.664
1.764
2.312
6M«
38.
13.878
1/8 _ 1/11 _f/18_ 1/22
0 436 0.431 0 423 0 414
~ 0.4 85 ^ 0.471 ~ 0 481 ~ 0 493
0.482 0.476 0..^ 0 454”
~ 0.519 _ ~ 0.527 ~ 0 540 ~ 0 557
0.873 0.S84 0.649 0.632
~ 0630 _ ■ - 0.642 _ ~ 0 663 - 0 691
0.749 0.732 0.705 ~~ 0.675
~ 0389 ~ 0.883 _ ~ 0.927 ~ 0.98 7
0.919 0.892 0.881 0.806
~ 1.088 _ ~ 1 140 _ ~ 1.218 _ ~ 1,328
1.318 1.269 1.174 1.086
~ 1.748 _ ~ 1.861 _ ~ 2.093 ~ 2.462
1.679 1.884 1.449 1.314
~ ?.478 _ - 2.724 _ ^ XM _ ~ 4.298
3.318 2.137 IMS 1466
~ 4.286 _ ~ 8.073 _ ~ 7.426 _ ^18483
4488 4.161 3J13 2486
9.726 7.088 4496 3.666
• 38

Pentax P3 Specifications

General

Model	Pentax P3
Film Format	35mm
Lens Mount	Pentax K mount
Metering	TTL center-weighted
Flash Sync	1/100 sec
Camera Type	SLR
Shutter Speed	1/1000 sec to 1 sec, Bulb
Exposure Modes	Manual
ISO Range	25-1600
Viewfinder	Pentaprism
Flash	Hot shoe
Battery	2x LR44/SR44