Cavision Industrial Series Two Element Wide Angle Combination of BWA07X117 & PWA07X77 for Lenses with 77mm Filter Thread, for Use as .49x or .7x
• The Cavision Industrial Series two element Wide Angle Combination of BWA07X117 & PWA 07X77 for lenses with a 77mm filter thread, can be used as .49x or .7x. It provides a 50% wider angle of view and features a universal design for use with a variety of different lenses. It can also be used with CR series adapter rings to step down to 72mm to fit a 72mm front lens.
What is the differences between Wide Angle Adapters and Wide Angle Converters?
• Fixed focal adapters lose focus when the focal length on the camera lens is changed (i.e. zooming). For this reason the adapter is not recommended when live zooms are necessary. Note: Typically it is possible to change the zoom level a small amount while still retaining focus.
• When using an adapter, the normal focusing operation does not function. It is necessary to use the macro focus control instead. For mini-DV cameras that do not have a macro focus control, the lens will typically retain focus from the widest angle to approximately 1/4 of the zoom range.
• With zoom-through converters, normal lens operation is not affected. Focus operations will work the same as before and focus will not be affected when the focal length is changed (i.e. zooming).
|Suitable lens:||Ø 77mm or 72mm Filter Thread size with adapter|
|Focus:||By macro mechanism|
|Aperture:||No light loss|
|Angle of view:||At 8mm position: 95°27' X 79°03'|
|Format:||2/3", 1/2" or 1/3"|
|Front Filter Thread:||Ø 113mm; P=1.0|
|Back mount:||Back thread: Ø77mm P=0.75|
|Construction:||2 groups, 2 elements|
|Dimensions:||Ø 120mm X 40mm(h)|
|Optional Accessories:||Adapter ring for Ø72mm front lens: AR77-72|