Brand: | Minolta | ||
Model: | AUTO BELLOWS ROKKOR | ||
Made in: | Japon | Osaka Japon |
|
Lenght: | 100 mm | Type: | Téléobjectif |
Maximum aperture: | 4 | Minimum aperture: | 32 |
Made from: | 1969 Serial number: | To: | Serial number: |
Optical formula: | 3 éléments en 3 groupes | Focusing mode: | Manuelle |
Minimum focusing: | - (metric) | Macro: | Non |
Mount: | Minolta | Multi-coated: | |
Lenght maxi: | 35 (mm) | Lenght mini: | 35 (mm) |
Diameter maxi: | 63 (mm) | ||
Weight: | 145 (g.) | ||
Filter mount: | 55 (mm) | ||
Comments: | Cet objectif particulier, sans rampe de mise au point, ne peut être utilisé que monté sur un soufflet (bellows en anglais), la mise au point se faisant en approchant ou éloignant l'appareil du sujet, en fonction du tirage employé. Cette version ne possède pas, d'origine, de couplage MC, mais un habile bricoleur l'a ici rajouté. C'est la tige métallique que l'on voit au dessous de la valeur "8" du diaphragme. Rappelons que l'automatisme évoqué par le nom de l'objectif, ou des soufflets, ne concerne que le couplage au diaphragme. Il était donc destiné à une utilisation avec l'auto-Bellows I, AB II ou AB III, mais l'utilisation sur les systèmes d'allonge non-automatiques reste possible, en travaillant à ouverture réelle. La seule utilité de ce couplage MC rajouté : l'utilisation avec les bagues-allonges automatiques, les seules à transmettre les valeurs de diaphragme et le couplage MC (cellule). |
||
Central shutter: | Non | Number of blades: | 6 |
Integrated filter: | Hood: | Accessoire | |
Angle of view: | 24 | Macro ratio: |
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Minolta AUTO BELLOWS ROKKORPresented by Renaud LAEMMLI.
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