beautypg.com

Barlow lenses, Arlow, Enses – Canon 93517 User Manual

Page 10: Series - 1

background image

10

Barlow lenses offer an easy, economical way to
increase the magnification range of your eyepieces,
and Celestron carries an assortment of these highly
useful lenses. A Barlow lens doubles the magnifying
power of your eyepiece by doubling its effective focal
length. For example, an 18mm eyepiece used with a
2x Barlow lens would have the magnifying power of
a 9mm eyepiece. It’s like having two eyepieces in
one!

If you’re looking for an affordable way to achieve
high-power viewing of the moon and planets, double
stars and even close-up views of terrestrial subjects, a
Barlow lens is the answer.

Barlow lenses mount into either your telescope’s focuser or visual back.

The Economy models of .96" and 1

1

/

4

" are good choices when you want to

expand your power ranges at a very economical price.

Celestron’s premium quality .96" and 1

1

/

4

" achromatic Barlow lenses (#93502

and #93507) are compact and lightweight. Both are under three inches long,
with the 1

1

/

4

" lens weighing in at 4 ounces and the .96" lens a mere 2 ounces!

The clear aperture is 27mm on the 1

1

/

4

" model, and 21mm on the .96" unit.

The .96" Barlow is fully multicoated and the 1

1

/

4

" lens is multicoated.

The Ultima

®

Series Barlow (2x – 1

1

/

4

") is an air-spaced, three element apochro-

matic design with a 27mm clear aperture. This lens features a very high
quality, fully multicoated design. Amazingly compact and lightweight, it’s
just 5 ounces and 2.75" in length.

2x Barlow Lens – Economy – .96" [93211]

2x Barlow Lens – Economy – 1

1

/

4

" [93213]

2x Barlow Lens – Deluxe – .96" [93502]

2x Barlow Lens – Deluxe – 1

1

/

4

" [93507]

2x Barlow Lens – Ultima

®

Series - 1

1

/

4

"

[93506]

Top: #93506, 93502, #93507

Bottom: #93213, #93211

Eyepiece

Focuser or
Visual Back

Barlow Lens

Option:
Diagonal

B

ARLOW

L

ENSES

This manual is related to the following products: