Question

SLR camera have :

• A. Mirrorless technology
• B. Pentaprism
• C. Fixed aperture
• D. CMOS sensor

Hint:

An SLR camera uses a mirror and pentaprism system to allow optical viewing directly through the camera lens.

Answer 1

The Correct Option is B

Concept: SLR stands for Single Lens Reflex camera. An SLR camera uses a mirror and prism system that allows the photographer to see exactly what the camera lens sees. One of the most important parts of an SLR camera is the pentaprism. The pentaprism:
• Reflects light correctly to the viewfinder
• Produces an upright image
• Helps photographers frame shots accurately The question asks which feature is associated with SLR cameras.

Step 1: Understanding the structure of an SLR camera. An SLR camera contains:
• A reflex mirror
• A pentaprism or pentamirror
• Interchangeable lenses
• Optical viewfinder system The mirror reflects incoming light upward into the pentaprism.

Step 2: Analyzing Option (A) Mirrorless technology. Mirrorless technology belongs to mirrorless cameras, which operate without the reflex mirror system used in SLR cameras. Therefore, this option is opposite to SLR design. Hence, Option (A) is incorrect.

Step 3: Analyzing Option (B) Pentaprism. A pentaprism is an essential optical component in SLR cameras. Its functions include:
• Redirecting light
• Correcting image orientation
• Improving optical viewing Therefore, this option is correct.

Step 4: Analyzing Option (C) Fixed aperture. SLR cameras generally support adjustable aperture settings rather than fixed apertures. Hence, this option is incorrect.

Step 5: Analyzing Option (D) CMOS sensor. Although many modern SLR cameras use CMOS sensors, CMOS sensors are not unique to SLR cameras. They are also found in smartphones, mirrorless cameras, and digital compact cameras. The feature specifically associated with SLR structure is the pentaprism. Hence, Option (D) is incorrect. Final Conclusion: SLR cameras have: \[ \boxed{\text{Pentaprism}} \] Therefore, the correct option is: \[ \boxed{(2)} \]