Focal length: 28-200mm
Mount: EOS
Aperture: F 3.5 (5.6)- F 22 (F 36)
Min focus distance: 0.45m (makro on 200mm)
Length (from flange): 89/139mm [+ 26mm for the adapter]
Diameter: 85mm
Weight: 495gr.
Some pictures:
A7 and the lens at 28mm.
A7 and the lens at 200mm.
Sample pictures: You may click
on the sample image (except closest focus) for full resolution. The
full resolution image opens in a new window, so you can keep it open
for comparison. Focus is on the
satellite
dish to the right of the big solar panel near the center of the photo.
28mm, F 3.5.
28mm, F 8.
28mm, F 22.
70mm, F 4.5.
70mm, F 8.
70mm, F 29.
200mm, F 5.6.
200mm, F 11.
200mm, F 36. Photo taken several days later, the first one was blurry
due to shake. This one suffers a bit from colour cast and also
diffraction.
200mm, closest focus is only 25cm from
outermost
edge of the lens, F 8. Focus on
the program wheel of the camera.
The lens was adapted via
an adapter with contacts. Pay attention, both,
the Fotga and the Commlite adapter automatically set the camera to
APS-C, although it's a full frame lens. So you have to correct this via
the camera menu. Aperture is controlled by the camera, I focussed
manually. Autofocus is possible, but not always reliable and it's very
slow.
Seen the prices of Sony full frame lenses, this is an inexpensive
all-purpose alternative if you don't need autofocus. Wide open it's a
bit soft at the edges and
there are shades on the upper edges at 28mm, otherwise image quality is
just fine. There is colour cast at the tele end, as with most long zoom
lenses. It has very good close focus capability.
At F 29 it
only gets a bit blurred due to diffraction, at F 36 (200mm) diffraction
is quite visible. This is a problem of the sensor size, not the
lens (see APS-C comparison page for an explanation).
