Problem concerning zoom lens in camera

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SUMMARY

The discussion focuses on the optical configuration of a zoom lens system involving a converging lens with a focal length of 12 cm and a diverging lens with a focal length of -12 cm, separated by distances of 4 cm and 8 cm. Key calculations include determining the image position for the converging lens, the object distance for the diverging lens, and the final image location. The setup requires a clear understanding of lens formulas and ray diagrams to visualize the relationships between the lenses and the images formed.

PREREQUISITES
  • Understanding of lens formulas and image formation
  • Familiarity with converging and diverging lens properties
  • Ability to perform ray diagram analysis
  • Knowledge of focal lengths and their significance in optics
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  • Study the lens maker's equation for designing optical systems
  • Learn about ray tracing techniques for complex lens systems
  • Explore the effects of varying lens separation on image formation
  • Investigate the principles of optical zoom mechanisms in cameras
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Optics students, camera engineers, and anyone interested in understanding the mechanics of zoom lens systems and image formation through multiple lenses.

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Problem concerning zoom lens in camera...

This problem deals with a diverging lens placed to the right of a converging lens. The converging lens has a focal length of 12cm and the diverging lens has a focal length of -12cm. The lenses are separated by 4cm.

a) For a distant object, where is the image of the
converging lens?
b) The image of the converging lens serves as the object
for the the diverging lens. What is the object distance
for the diverging lens?
c) Where is the final image?
d) Repeat for a lens separation of 8 cm.

I'm really confused by this question, it seems to me like the wording is off but I might be misinterpreting it :S Thanks for any help! :)
 
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Try to draw the set-up.

ehild
 

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