Jason Binoculars - Focus FreeFocus Free Binoculars
Jason Binoculars were popular in the 1970s and 1980s for their auto focusing
ability.
Bushnell bought out the Jason brand in 1992 and now offers the auto-focusing binoculars under
their PermaFocus series. They are completely automatic and focus free.
The lenses are fully coated and give clear, bright, sharp images that are
automatically focused as you view through the lenses. You just bring them up to
your eyes, aim them at whatever you want to see focused in the field of view and voila, instant clarity!
Bushnell 7x35 PermaFocus (Jason) Binoculars

The 7x set of these will of course have less magnification than any of the
others in this series, but is a favorite among those who want smaller
and lighter binoculars to carry around. These have a particularly wide field of
view at 578 feet.
Specifications:
- Exit Pupil - 5mm
- Eye Relief - 12mm
- Field of View - 578-foot
- Fixed focus
- Weight - 1.5 lbs.
A review:
"This was my husband's favorite Christmas gift. He wears glasses and has
one eye with partial sight. These binoculars work perfectly for him at sports
events and for watching birds in our back garden. He says that he can focus on
an object immediately and clearly and can catch the action or object before it
disappears. He can also pass the binoculars to a friend who can see what's going
on without refocusing. This is a great product!" -
Mary from Oviedo, FL
Bushnell 10x50 Jason PermaFocus Binoculars

These Jason binoculars give you more magnification, but a little less field of view than the
7x35s at 393 feet instead of 578 feet. It is one-half pound more heavier in
weight than the 7x's as well.
Specifications:
- Exit Pupil - 5mm
- Eye Relief - 14mm
- Field of View - 393 feet
- Fixed Focus
- Weight - 2 lbs.
A review:
"I gave these to my husband, an avid bird lover for Christmas. We have
taken them out quite a few times in the short time we have had them. I think
that price does equate with value. These exceeded my expectations." -
LKK from McHenry, Illinois
Bushnell (Jason) 12x50 PermaFocus Binoculars
 
The 12x50s have less than half the field of view of the 7x35s at 265 feet. The
exit
pupil is a little smaller than both the 7x's and 10x's at 4.2mm instead of
5mm. The larger the
exit pupil, the more light is able to come through the lens. At 9mm eye
relief, it may be a problem for those with eyeglasses.
Eye relief is the distance you can hold the binoculars from your eyes and
still see a complete focused field of view.
I would say these would be best for viewing in far away subjects such as at
concerts, perhaps hunting or viewing migrating raptors from an overlook.
I would not want to use these for finding fast moving warblers in trees or on
a pelagic bird trip because it is more difficult to steady binoculars at
higher magnification. But it is ultimately up to you and what your
preference is. Lots of people did have positive reviews of these.
Specifications
- Exit Pupil - 4.2mm
- Eye Relief - 9mm
- Field of View - 265-foot
- Fixed focus
- Weight - 2 lbs.
A review:
"I bought this pair of binoculars for our recent trip to Mexico. What a
fantastic surprise! These focused so quickly on far away wildlife, boats,
turtles come up to the water's surface and birds in flight. It was sharp, crisp
and clear." - Belle from Vernon, PA
From the reviews of users, it is obvious that these "Jason Binoculars"
by Bushnell are
one of the best out there. People like their durable construction, lightweight
feel and the fact that they really can focus on objects fast and quite easily. People use
them for a multitude of purposes including bird watching, sporting events, concerts,
golfing, hunting, star gazing and lots more. So if you do not want to mess
around with adjusting knobs and want quick, easy viewing, then these are the
binoculars for you.
The Bushnell focus free jason binoculars are available in the following sizes and
magnifications: Compact 8x25, Mid-size 7x35, Full-size: 7x50, 10x50 and 12x50.
They are also available in both wide angle (porro) and roof prism binoculars.
The wide objective lens is a great feature for letting in lots of light and wide
field of
views. For a review of the differences between prism design go here:
Porro vs Roof Prism Binocular Design. In general, roof prism binoculars will
be a little lighter in weight, slimmer in design and more durable but will
generally cost
more than porro prism binoculars.
So focus-free Jason binoculars give you the convenience of auto-focusing in a
well-made, relatively low-priced binocular. Just aim and your target appears not only
magnified closer, but instantly in focus as well. Focus free binoculars
that have fully coated optics and rubber armoring at this price, you really
cannot beat it. Go and give them a try!
View All Jason Binoculars or Auto-Focusing Binoculars
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