Pentax 645NII - User Manual

Other manuals for Pentax 645NII

Operation Manual100 pages

Questions and Answers

L
Lori Gomez MDJul 31, 2025
Why won't the shutter release on my Pentax 645NII?
- B
  bondchristianJul 31, 2025
  The shutter may not release for several reasons: - The film may be fully exposed. Remove the film from the film back. - The main switch may be set to 'r'. Set the main switch to 'i'. - The battery warning 'e' may be displayed. Replace the batteries. - The self-timer mode may be active. Cancel the self-timer mode. - The exposure compensation dial may be set to 'D', 'PF', or 'ISO'. Turn the dial to a different position.
F
fruizAug 6, 2025
What to do if indicators do not appear on the LCD panel of Pentax 645NII Digital Camera?
- T
  Timothy StevensAug 6, 2025
  If indicators are not visible on the LCD panel, consider the following: - Ensure the main switch is set to 'i', not 'r'. - Verify batteries are installed. If not, install them. - Check if the batteries are installed correctly. Reinstall them properly. - The batteries may be dead. Replace them with fresh ones. - Make sure the AF frame is over the subject. Move the camera until the AF frame covers the subject. - The subject may be too close. Increase the distance between the camera and the subject.
S
Sandra SandersAug 11, 2025
What does it mean when B blinks on the LCD panel of Pentax 645NII?
- J
  Jessica RoachAug 11, 2025
  If 'B' is blinking on the LCD panel, it could indicate a camera defect. Press the mid-roll wind-up button to wind the film, then consult your Pentax distributor or authorized Pentax repair shop. Alternatively, try replacing the batteries and pressing the mid-roll wind button again.
K
Kelly MurphyAug 17, 2025
Why is 'u' blinking in the viewfinder of my Pentax Digital Camera?
- P
  Philip WallerAug 17, 2025
  The 'u' blinking in the viewfinder indicates that the subject is either too close or difficult for the autofocus to lock on. You can use the focus-lock technique or manually focus using the matte field.
S
Scott HamiltonAug 25, 2025
How to fix frame counter if it does not indicate B on Pentax Digital Camera?
- C
  cassandra81Aug 25, 2025
  If the frame counter doesn't show 'B', it means the shutter release button wasn't pressed after loading the film. Press the shutter release button after loading the film.

Summary

For Safe Use of Your Camera

Precautions for Your Camera

Precautions when taking pictures

Advice on protecting the camera from elements and physical damage during use.

Precautions for storage

Guidelines for storing the camera to prevent damage from humidity, temperature, or chemicals.

Precautions for proper care

Instructions on cleaning and maintaining the camera's optical and mechanical parts.

Other Precautions

Precautions for Battery Usage

Loading the Batteries

Turning the Power ON

Attaching the Lens

Detaching;Attaching Film Holder 645

Loading Film and Shutter Operation

Setting the Film Speed (ISO)

Unloading Film

Programmed AE Mode

Multi(6)-Segment Metering Mode

Autofocus Mode Operation

Holding the Camera Correctly

Taking a Picture

Selecting a Drive Mode

Programmed AE Mode (Selecting)

Aperture-Priority AE Mode

Shutter-Priority AE Mode

Metered Manual Mode

Exposure Compensation

Auto Bracketing Exposure Mode

Spot Metering Mode

AE Lock Function

Continuous Autofocus Mode

Spot AF Mode

Focus Lock Function

Manual Focusing

Using Pentax Dedicated Flash

Slow-Speed-Sync Shooting

Pentax Functions Overview

Resetting Pentax Functions

Steps to reset all custom Pentax Functions to their initial settings.

Troubleshooting Common Issues

Camera Specifications

Warranty Policy Details

Warranty Service Procedure

Steps to follow for obtaining warranty service for defective equipment.

Pentax 645NII Specifications

General

Film Format	120/220
Image Size	56 x 41.5 mm
Film Advance	Automatic
Flash Sync Speed	1/125 sec
Camera Type	Medium Format Film Camera
Lens Mount	Pentax 645
Shutter Speed	1/1000 to 30 sec
ISO Range	6 - 6400
Metering Modes	TTL, Center-weighted, Spot
Exposure Compensation	+/- 3 EV in 1/3 steps
Exposure Modes	Manual, Aperture Priority, Shutter Priority
Metering System	TTL
Viewfinder	Optical, pentaprism
Autofocus	Yes