Quiz For Lesson 10:

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Question 1: Escapement retards can be found in shutters, self-timers, watches, and sync delay mechanisms.

True
False

Question 2: The retard in the Argus C3 is introduced:

During the blade-opening time.
During the blade-closing time.
While the shutter blades are wide open.
After the shutter blades have closed.

Question 3: An Argus C3 shutter delivers the same speed (the slowest speed) regardless of the speed cam setting. Select each of the following that could cause the problem.

The bell crank is jammed.
The speed cam is out of time.
The retard section is damaged.
The wire link is disconnected.

Question 4: When checking an ArgusC3 on "Bulb," you find that the shutter blades do not open fully. What part is probably out of adjustment?

The sync cam.
The bulb lever.
The release cam.
The release plunger.

Question 5: An Argus C3 shutter remains open after tripping. What may be the trouble? Select all possible answers.

The blade operating ring spring is damaged.
The retard section is damaged.
The mainspring is damaged.
The shutter blades are damaged.

Question 6: A customer brings in his Argus C3. You notice that the setting lever position indicates that the shutter is cocked; but when you depress the release button, nothing happens. What could be the trouble?

The bell crank spring is broken.
The shuttlecock ribbon is broken.
The sync cam is out of adjustment.
The end of the release plunger is broken.

Question 7: As you cock the Argus C4 shutter, the main drive column rotates to tension the mainspring.

True
False

Question 8: When the Argus C4 shutter is cocked, the main drive column is held by the:

Inner release lever.
Release plunger.
Transfer shaft.
Released-position latch.

Question 9: What part holds the Argus C4 main drive column before you cock the shutter?

Inner release lever.
Release plunger.
Transfer shaft.
Released-position latch.

Question 10: If the "hook" on the Rollei 35 pallet control lever is bent, the pallet may not engage and disengage at the proper speeds.

What is the fastest speed at which the pallet should be engaged?

What is the slowest speed at which the pallet should be disengaged during the exposure?

Question 11: Following a slow exposure, the Rollei 35 pallet remains engaged with the star wheel until:

The blade operating ring completes its rotation to close the blades.
You set the speed knob to another exposure setting.
You let up on the release button.
You cock the shutter for the next exposure.

Question 12: Your customer complains that he is getting underexposed negatives with his Rollei 35 at ¹⁄₂ second. Referring to your quiz question #11, how could the problem be related to operator error rather than a camera malfunction?

Question 13: When you change the diaphragm setting on the Rollei 35, what two cams turn together as one unit?

1:

2:

Question 14: You've just reassembled a Rollei 35 and find that the pointer moves properly when you change the f-stop. However, when you turn the speed knob, the pointer doesn't move. Which of the following could be the problem?

The pallet cam lever is not riding on the outside edge of the control cam.
The exposure setting link is jammed underneath the film speed cam.
The spring for the pointer is disconnected or broken.
The stop tab on the pointer link is broken or bent.

Question 15: When the lens barrel of the Rollei 35 is in its storage position, you cannot depress the release button. What part latches the release slide when you collapse the lens?

The release slide pawl.
The secondary latch.
The lens tube.
The lens latch.

Question 16: The shutter in the Rollei 35 is:

A between-the-lens modular shutter.
A behind-the-lens modular shutter.
A built-in shutter with the blades behind the lens.
A built-in shutter with the blades between the lenses.

Question 17: The key speeds at which you would make shutter speed adjustments in the Rollei 35 are ¹⁄₅₀₀, ¹⁄₁₂₅, and ¹⁄₁₅. Indicate the normal adjustment point for each speed.

¹⁄₅₀₀:

¹⁄₁₂₅:

¹⁄₁₅:

Question 18: What speed adjustment point in the Rollei 35 affects ¹⁄₄ of a second without disturbing ¹⁄₂₅₀?

Question 19: We've listed five statements regarding the Acme Ilex Shutter. Write after each if the statement is True or False.

The Ilex Acme uses two retard sections operating in tandem.

The Ilex Acme does not use a high-speed spring.

The pallet in the Ilex Acme can be disengaged for a second speed range.

The main lever in the Ilex Acme is similar to the main lever in Prontor shutters.

The Ilex Acme must be cocked to use the press-focus feature.

Question 20: An Ilex Acme runs through its release cycle without opening the shutter blades. Which of the following could cause the problem?

The blade-ring spring is broken.
The leaf-lever spring is broken.
The mainspring is broken.
The time-bulb lever spring is broken.