Opticron 40215 Manuel utilisateur
40215 Telephotoadapter
User Guide
1114
For more information please contact:
Opticron, Unit 21, Titan Court,
Laporte Way, Luton, Beds LU4 8EF UK
Telephone: +44 (0)1582 726522
Email: [email protected]
The 40215 Telephotoadapter converts
the following Opticron telescopes
to long focal length telephoto lenses
using SLR, D-SLR or CSC cameras.
Note. In addition you will need a
compatible T-mount to connect your
camera body to the photoadapter.
Equivalent focal lengths1:
HR 66 - 800mm HR 80 - 900mm
ES 80 - 950mm ES 100 - 1250mm
GS 52 - 530mm GS 665 - 750mm
MM3 50 - 530mm MM3 60 - 700mm
IS 602- 700mm IS 702- 750mm
1. Focal lengths listed are approximate
and based on 35mm SLRs. Many
D-SLRs use different sized image
sensors so a telephoto conversion
figure must be calculated separately.
2. An optional close focus adapter is
available for IS models.
User Instructions
1. To convert any of the telescopes
listed into a telephoto lens first
remove viewing eyepiece.
2. Screw telephotoadapter onto exposed
external thread of telescope body.
3. Attach appropriate T-mount to
external thread of telephotoadapter.
4. Attach camera body to the T-mount.
Notes
1. If you find the camera is at an odd
angle when attached - the twin
rings on the telephotoadapter or the
T-mount can be adjusted to bring the
camera into line.
2. Focusing is facilitated on the
telescope.
3. Camera may need to be operated
in manual mode with shutter locks
disengaged where necessary.
4. The high magnification to aperture
ratios result in slower shutter speeds
compared with conventional
telephoto lenses so choose an IS0
setting of 400. For 35mm SLRs
400 ASA film is recommended.
If possible use a cable release or
remote control to reduce camera
shake when operating the shutter.
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