How to pronounce 倍數 in Cantonese (2 out of 3):

以及 50 倍數碼變焦的長焦鏡頭
And a 50 times-focused long-focused camera.

Cantonese Sentence Breakdown

以及 ji5 kap6
and
倍數 pui3 sou3
multiple
maa5
weight
number
code
to pile
to stack
classifier for length or distance (yard), happenings etc
numerals
symbol
yard
bin3
to change
to become different
to transform
to vary
rebellion
to alter
to turn into
to become
uncommon
unexpected turn of events
accident
changeable
ziu1
burnt
scorched
charred
worried
anxious
coke
a surname
dik1
of
~'s (possessive particle)
(used after an attribute)
(used to form a nominal expression)
(used at the end of a declarative sentence for emphasis)
truly
really
indeed
target
to lift up
few
small
to fetch
to move
to get
to pick up
to force
zoeng6
extraneous
鏡頭 geng3 tau4
lens