Item.Wiki
--
Catalog
:
Properties
:
Log in
:
Register
Root
Electronics
Photo and video cameras
Accessories
Camera lenses
Opteka 420-800mm f/8.3 Pentax KA/KAF/KAF2/KAF3
Edit
History of changes
Delete item
Weight:
520 g
Brand:
Opteka
Description:
Mount: Pentax KA/KAF/KAF2/KAF3, lens type: telephoto, focal length: variable, min. focal length: 420 mm, max. focal length: 800 mm, aperture F at min. focal length: 8.30, Aperture F at max. fork
Type:
Lens
Length:
222.25 mm
Max. focal length:
800 mm
Min. focal length:
420 mm
Focal length:
Variable
Lens type:
Telephoto lens
Zoom ratio:
1.9x
Minimum focus distance:
1.6 m
Bayonet:
Pentax KA/KAF/KAF2/KAF3
Filter thread diameter:
62 mm
Aperture F at max. focal length:
8.3
Aperture F at min. focal length:
8.3
Minimum aperture F:
16
Number of element groups:
2
Number of elements:
4