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