Bencini Koroll 24 s
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76.69
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149.99
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€
€
61.355
€
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120.00
лв.
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Характеристики Bencini Koroll 24 s Технически данни: Година на въвеждане: 1953 Вид на използвания филм: ролка - 3 x 4.5 см Максимален брой заснети кадри: 24 Тип на използвания филм: формат 120 Скорости на затвора: 1/150, B Тип на използвания обектив: f/11 (24S: f/9 or f/16) Вградена светкавица: не
Информация
The Koroll cameras were 120 film and 35mm viewfinder cameras made by Bencini in Milan, Italy starting in the 1950s. The body was based on a single aluminium alloy casting, which included the lens barrel. Each model seems to have gone through a number of facelifts, with minor cosmetic changes. Frame sizes 120 film is designed to accommodate several different image sizes; but the one encountered most frequently would probably be 6×6 cm (more exactly 56×56 mm) square. This is sometimes referred to as "2¼ square" format by those who think in inches. Image sizes nominally 6×9 cm and 6×4.5 cm (a.k.a. "semi" format) are also standard. Additionally 6×7 cm, and less commonly, 6×8 cm and 6×10 cm are used by some cameras. Special-purpose panoramic cameras even produce 6×12, 6×17 cm, or even wider frames. Like "6×6", all sizes are nominal; actual dimensions are a bit smaller. One advantage claimed for 6×7 and 6×4.5 sizes is that they enlarge almost exactly (without cropping) onto 8×10" paper, and thus proponents call these ideal format cameras. Among all the image sizes for 120 film, naturally the smallest "645" format permits the lightest and most compact cameras. A roll of 120 film offers 16 exposures per roll in 6×4.5 format (for some cameras, only 15), twelve for 6×6, ten for 6×7, nine for 6×8 and eight for 6×9. Overall the film is 72 cm long. (For 220 film the frame counts will be twice this.)
|
Typical frame sizes |
||||
|
nominal size |
actual image area |
frames |
||
|
cm |
in |
mm |
on 120 |
on 220 |
|
6 × 4.5 |
|
56 × 44 |
15 or 16 |
30 or 32 |
|
6 × 6 |
2¼ × 2¼ |
56 × 56 |
12 |
25 |
|
6 × 7 |
|
56 × 70 |
10 |
20 |
|
6 × 8 |
|
56 × 75 |
9 |
19 |
|
6 × 9 |
2¼ × 3¼ |
56 × 84 |
8 |
16 |
|
6 × 10 |
|
56 × 93 |
7 |
|
