EOS S.O.S
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BRIAN WORLEY
CANON PRO
Brian is a freelance photographer
and photo tutor, based in
Oxfordshire. He has unrivalled
EOS camera knowledge as he’s
been working for Canon for over
15 years, and will help you
master all EOS products.
http://www.p4pictures.comCan I use a Canon Extender with my EF
70-300mm f/4.5-5.6 IS II USM lens?
Robert Thomson, WarsopBRIAN SAYS... The only
extenders for EF lenses that
Canon makes are the
E x tender EF 1 .4x and
Extender EF 2x, the current
ones being the Mark III.
All have a protruding front
that fits in to a recess in the
back of the lens, but only a
few lenses have a recessed
back element that fits,
generally the L-series lenses
with a focal length of at least
70mm. Your EF 70-300mm
f/4.5-5.6 IS II USM lens is,unfortunately not compatible
with the Canon Extenders.
Some independent lens
makers sell teleconverters
which don’t have the
protruding element on the
front, one such maker is
Kenko. Please remember that
when you use an optical
converter like these they
restrict the light reaching the
sensor, so a 1.4x converter
or extender reduces your
aperture by 1-stop, and a
2x by 2-stops.BRIAN SAYS... I also found
that the EOS R takes quite a
lot of customization to suit my
ways of working. If you
primarily shoot stills, then I
would reconfigure the movie
record but ton to be more
useful for stills. Try setting it
for direct AF method
selection, and limit the
available AF methods. This
will make it easier to switch
between your chosen AF
methods, for me that’s face
detection AF and 1-point AF.
Secondly, look at how you
shoot, to see if you rarely
change from one-shot to
servo AF or change white
balance while shooting. In this
case, the M-Fn button can
stand a little customization
too. When set to the default
dial function, you candetermine what options are
adjustable. Try reducing
these from the standard set of
five options to one or two. The
M-Fn but ton on my camera is
configured with two options:
ISO and focus mode. For most
of the time this makes the
M-Fn button the ISO button,
but when needed I can also
switch between one-shot
and servo focus too.Do you have any tips for custom
settings on the Canon EOS R camera?
Vic Robbins, TewksburyCanon Extenders multiply focal length, but have a protruding front
element that restricts compatibility to L-series telephoto lensesReconfiguring the Canon EOS R movie button to direct AF selection
makes it more useful for controlling focusing when taking still photosCustomise the M-Fn button
simplifying the range of settings
for faster access to your essentials