Attaching the lens
❶Attach the T-mount to the lens and then set the lens on the
T-mount to the camera.
❷Provide a T-mount appropriate for your camera.
[Refer to 3, “T-Mount.” ]
＊Multiple types of mounts may be available depending on the camera
brand. For details, contact the camera manufacturer. (Four-Thirds, Micro
Four-Thirds, etc.)
❶The T-mount isn't attached to
the lens.
❷The T-mount doesn't match the
mount on your camera.
The lens can't be attached to
the camera.
❶Securely tighten the outer screws using a commercially
available precision screwdriver.
[Refer to 3, “T-Mount.” ]
❶The outer screws (three
locations) on the T-mount are
loose.
The mount rattles.
❶Loosen the outer screws on the T-mount and turn the lens until
the distance scale indicator mark comes to the top center, and
then tighten the outer screws on the T-mount.
[Refer to 3, “T-Mount.” ]
❶The lens and T-mount aren't
adjusted to proper positions.
The distance scale indicator
mark doesn't come to the top
center.
❶The T-mount has a double-structure. Once the outer screws
(three locations) on the T-mount are loosened and removed,
place the outer ring on the T-mount again and tighten the outer
screws on the T-mount, and then remove the T-mount from the
lens.
[Refer to 3, “T-Mount.” ]
❶The inner ring of the T-mount
remains on the lens.
Other mount can't be
attached.
7. Troubleshooting
Condition Remedial action
Taking photographs
❶, ❷Set the necessary items beforehand by referring to 4,
“Setting Up the Camera,” and your camera's manual.
❸Set the camera’s focus mode to “MF” (manual focus).
❶The shooting mode doesn't
support the attached lens.
❷The camera isn't set correctly,
or the camera is set to disable
the shutter release when a lens
without electrical contacts is
used.
❸The camera’s focus mode is
set to “AF” (auto focus). In the
AF mode the camera may not
be able to detect the focus
position of this lens, in which
case the shutter doesn't
release.
The shutter doesn't release.
❶Neither the camera nor the lens function is affected.
❶This lens has no electrical
contacts, so it doesn't send or
receive electrical signals
to/from the camera.
The camera’s finder display or
LCD screen doesn't come on.
❶Turn the focus ring and manually adjust the focus.
[Refer to 6, “Taking Photographs.” ]
❶This lens is a manual focus
lens.
Auto focus doesn't work.
❶Firmly secure the camera when taking photographs.
＊The use of a tripod or monopod is recommended.
❷Increase the distance from the subject.
❸Take photographs in a place having less airborne dust, water
vapor, exhaust gases, etc.
❹Wipe clean the lens using a soft cloth.
[Refer to 6, “Taking Photographs.” ]
❶The hand shakes when
photographs are taken.
❷The distance to the subject is
too close.
❸Effects of dust and water vapor
in the air.
❹The lens is dirty.
Images become blurry.
❶Adjust the exposure by changing the shutter speed.
[Refer to 6, “Taking Photographs.” ]
❶This lens has a fixed aperture.
The aperture can't be
adjusted.
This lens is a mono-focal lens.The camera doesn't zoom in.
Condition Remedial action
Cause
Other
❶Check your camera for the type of mount, and consult the
dealer/retail shop where you purchased your lens.
❶You can attach various
T-mounts sold separately.
I want to use my lens with a
camera of a different type of
mount (a camera from a
different manufacturer).
❶When attaching a filter in front of the lens, first confirm that the
filter won't contact the center of the front surface of the lens.
❶[Refer to 1, “Name of Each
Part.”]
A filter can be attached to the
filter attachment thread ⑧or ⑨
as shown in the Fig. 1.
I want to attach a filter.
❶Do not remove the black object. It's okay to take a photograph
as is.
❶This is the part of the lens
structure that is used to reflect
images.
What appears to be a black
cap at the center of the object
lens (lens on the subject side)
doesn't come off.
❶On cameras with aperture priority mode, this problem can be
compensated to some extent by correcting the exposure. On
models that only have the “M (manual)” mode, the lens is linked
neither to the AE function nor to the exposure meter in the
camera.
When using such a camera, refer to the instruction manual for
information on the appropriate shutter speed.
❶The exposure is significantly
off.
Photographs are all white or
all black.
Condition Remedial actionCause
Cause
