Specifications
|
0.7x
Reducer
|
|
|
（After
attaching）80ED
Focal length
|
392mm
|
|
（After
attaching）80ED
Focal ratio
|
f/4.9
|
|
Lens Number
|
Triplet design(including one ED glass)
|
|
Image circle
|
APS-C
|
|
Back Focus
|
55mm（from
the base of M48 male thread）
|
|
Weight
|
0.32kg
|
|
Rear-end thread type
|
M54×0.75 |
|
Product
Size Diagram
|
0.7x Reducer
|
Installation
|
1x Flattener
0.85x Reducer
0.7x Reducer
|
Optical
Path Diagram
|
1x Flattener
0.85x Reducer
0.7x Reducer
|
Spot
Diagram
|
0.7x Reducer
|
Longitudinal
Aberration
|
0.7x Reducer
|
relative
illumination diagram
|
0.7x Reducer
