Telephotography using SLR cameras (digital or film) and compact
system cameras. In this system the camera lens is substituted
for the fiel telephotoadapter or fiel eyepiece
+ photoadapter. To convert IS 60 R models to a 700mm
1
/f.11.7
telephoto lens you will need a 40215 telephotoadapter with
40927S close focus adapter. Alternatively connect a suitable push
fit photoadapter to your viewing eyepiece.
2
A T-mount is required
to connect the assembly to the camera body.
Notes. Focusing is facilitated on the fieldscope. Camera may need to be
operated in manual mode with shutter locks disengaged where necessary. 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.
1
This is an approximate figure based on 35mm SLR cameras. D-SLR/compact system cameras use different sized image sensors compared to
35mm so an equivalent telephoto conversion figure must be calculated separately.
2
For information on push fit photoadapters visit our Digiscoping & Telephotography pages at www.opticronusa.com
Digiscoping with digital compact cameras, camcorders and cell phones.
Shooting high magnification photos and video through your fieldscope is possible if you have a suitable camera, camcorder
or cell phone. To find out how suitable or not your device is for digiscoping, position it up to the
viewing eyepiece and see if an image appears on the screen. You may have to position the unit a few
mm away from the eyelens of the eyepiece and increase the zoom to get a full frame image.
The most suitable compact cameras are those with a lens diameter of 20mm or under and zoom range
no greater than 5x. To get the best results you will also need to fit a low magnification wide angle
eyepiece to your fieldscope or use a zoom eyepiece set at minimum.
To find out more about bespoke digiscoping kits and universal mounts and brackets visit the Digiscoping & Telephotography pages at
www.opticronusa.com or contact Sales on (704) 895 3046.
Telephotography
Camera body
T-mount
1. Telephotoadapter or
2. Photoa
eyepiece (inside)
