Binoculars use either roof prism or porro prism designs to magnify views. Roof prism binoculars are more compact, lightweight, and comfortable to hold due to the eyepieces being in line with the objective lens, but require more precise manufacturing. Porro prism binoculars have offset eyepieces from the objective lens, provide higher contrast images, and are cheaper, but are more complicated and heavier.

1. Binoculars
By :
Nadiah Mumtaz D. (13)
Widya Wahyuning P. (18)
VIII-9 / SMP NEGERI 1 SIDOARJO

3. Roof Prism
Binoculars
Prism
Porro Prism
Binoculars Binocular
Galilean

4. PORRO PRISM BINOCULARS
ROOF PRISM BINOCULARS

5. • On 1960's Zeiss and Leitz companies introduced roof prism
binoculars that is :
– Compact
– Light
– Comfortable to hold.
• But inside, they had a more complex light path and required
much greater optical precision in manufacturing

6. The Difference

7. The Differences
Roof Prism Binocular Porro Prism Binocular
The eyepieces are in line with the The eyepieces are offset from the
objective lens. objective lense.
Not as contrast as Porro prisms. Give more contrast image than standard
roof prisms.
Comfortable to hold, compact, and light. More complicated and heavier.
More expensive Cheaper